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Bassam A. Tayeh
Civil Engineering Department, Faculty of Engineering, Islamic University of Gaza, Palestine

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Journal article
Published: 26 July 2021 in Construction and Building Materials
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This study investigates the effect of curing regimes generally used for self-curing concretes (SC) on the engineering properties of normal strength concrete (NSC) and high-strength concrete (HSC). This study also examines the effect of exposing SC concrete to high temperatures up to 800 °C. This study applies five types of curing regimes. The first type is immersing concrete samples in a water tank. The second type is placing concrete samples in the air under lab conditions without curing. The third type is using different polyethylene glycol (PEG) doses by 1%, 2%, 3% and 4% of cement mass. The fourth type is using porous ceramic wastes aggregate (PCWA) as a course aggregate replacement by 10%, 15%, 20% and 25%. The fifth type is combining PEG doses by 1% and 2% with 10% of PCWA. Tests were conducted to investigate the mechanical properties of compressive, splitting, and flexural strength. The durability tests such as water absorption, water sorptivity, water permeability, chloride ion penetrability, carbonation depth and drying shrinkage were investigated. Weight loss and residual compressive strength tests were performed after exposure to high temperatures. The study recommends three self-curing regimes for NSC AND HSC based on a) compressive strength achieved, b) durability and c) mechanical and durability performance of concrete subjected to high temperatures. First: SC regime with a combination of 2% PEG and 10% PCWA achieved the maximum compressive strength of concrete that was reported to be 14.7% and 19.3% higher for NSC and HSC, respectively, compared to water immersion curing technique. Second: SC regime with a dose of 3% PEG (NCP3) achieved the optimum durability properties of NSC and HSC that were studied in this research. Third: SC regime, replacing coarse aggregate by PCWA up to 25%, that reduced the deleterious effects of high temperature on density loss and compressive strength.

ACS Style

Mohamed Amin; Abdullah M. Zeyad; Bassam A. Tayeh; Ibrahim Saad Agwa. Engineering properties of self-cured normal and high strength concrete produced using polyethylene glycol and porous ceramic waste as coarse aggregate. Construction and Building Materials 2021, 299, 124243 .

AMA Style

Mohamed Amin, Abdullah M. Zeyad, Bassam A. Tayeh, Ibrahim Saad Agwa. Engineering properties of self-cured normal and high strength concrete produced using polyethylene glycol and porous ceramic waste as coarse aggregate. Construction and Building Materials. 2021; 299 ():124243.

Chicago/Turabian Style

Mohamed Amin; Abdullah M. Zeyad; Bassam A. Tayeh; Ibrahim Saad Agwa. 2021. "Engineering properties of self-cured normal and high strength concrete produced using polyethylene glycol and porous ceramic waste as coarse aggregate." Construction and Building Materials 299, no. : 124243.

Short communication
Published: 16 July 2021 in Case Studies in Construction Materials
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Foam concretes (FCs) have stronger matrix structure than lightweight concretes. The porosity of foam and lightweight concretes reduces as the density of the material increases. In addition, the porosity of lightweight concrete is highly affected by the aggregates’ pore features, and that of FC is totally affected by the pore structure of the matrix. Addition of ground calcium carbonate (GCC) and glass fibre (GF) to FC was investigated in this study. The effects of ingredients, namely, GCC, GF, cement and water on flexural and compressive strengths and the thermal conductivity properties were also studied. Test results were optimised in a proposed hybrid model. The optimisation results were also validated with laboratory tests. GCC incorporation increases compressive strength and thermal conductivity because of the filling effect. Furthermore, GF inclusion in the concrete mixtures contributes to the flexural strength of concrete.

ACS Style

Gokhan Calis; Sadik Alper Yildizel; Selin Erzin; Bassam A. Tayeh. Evaluation and optimisation of foam concrete containing ground calcium carbonate and glass fibre (experimental and modelling study). Case Studies in Construction Materials 2021, 15, e00625 .

AMA Style

Gokhan Calis, Sadik Alper Yildizel, Selin Erzin, Bassam A. Tayeh. Evaluation and optimisation of foam concrete containing ground calcium carbonate and glass fibre (experimental and modelling study). Case Studies in Construction Materials. 2021; 15 ():e00625.

Chicago/Turabian Style

Gokhan Calis; Sadik Alper Yildizel; Selin Erzin; Bassam A. Tayeh. 2021. "Evaluation and optimisation of foam concrete containing ground calcium carbonate and glass fibre (experimental and modelling study)." Case Studies in Construction Materials 15, no. : e00625.

Journal article
Published: 13 July 2021 in Construction and Building Materials
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The demand for partial replacement and complementary products of cement to enhance the properties of concrete and reduce the environmental pollution from the cement industry is recently increasing. Nano cotton stalk ash (NCSA) and palm leaf ash (PLA) are agricultural residues resulting from the burning of cotton stalk and palm leaves used as biomass. This investigation aims to study the effect of using NCSA and PLA as partial replacements to cement in ultrahigh-performance concrete (UHPC). As partial replacements for cement mass, 0%, 2.5%, 5, 7.5% and 10% of NCSA and 10%, 20% and 30% of PLA were adopted to produce the UHPC. Sixteen mixtures were prepared to evaluate the new and mechanical properties of UHPC containing the NCSA and the PLA. In addition, NCSA and PLA morphologies were evaluated using a scanning electron microscope, and thermogravimetric analysis with differential thermal analysis and X-ray diffraction was applied to assess ash characteristics. Results of the microstructure tests showed that heat treatment of the ash improved its properties by removing carbon and unburned organic matter with a slight change in the mineral composition of the PLA. The increase in the cement replacement rates by ashes led to a decrease in the slump flow, whilst the largest slump flow reduction was recorded in the mix containing 30% of PLA and 10% of NCSA as a replacement of Portland cement by 14.5% mm compared with the reference mix. The application of replacement rates by 2.5% and 5% of NCSA and 20% of PLA by cement mass to produce UHPC respectively realised the highest compressive strengths of 161.7 and 170.1 MPa at 90 days. Moreover, the mixture containing 20% of PLA with 5% of NCSA achieved the highest values of splitting tensile strength, flexural strength and elastic modulus.

ACS Style

Mohamed Amin; Abdullah M. Zeyad; Bassam A. Tayeh; Ibrahim Saad Agwa. Effects of nano cotton stalk and palm leaf ashes on ultrahigh-performance concrete properties incorporating recycled concrete aggregates. Construction and Building Materials 2021, 302, 124196 .

AMA Style

Mohamed Amin, Abdullah M. Zeyad, Bassam A. Tayeh, Ibrahim Saad Agwa. Effects of nano cotton stalk and palm leaf ashes on ultrahigh-performance concrete properties incorporating recycled concrete aggregates. Construction and Building Materials. 2021; 302 ():124196.

Chicago/Turabian Style

Mohamed Amin; Abdullah M. Zeyad; Bassam A. Tayeh; Ibrahim Saad Agwa. 2021. "Effects of nano cotton stalk and palm leaf ashes on ultrahigh-performance concrete properties incorporating recycled concrete aggregates." Construction and Building Materials 302, no. : 124196.

Articles
Published: 09 July 2021 in International Journal of Occupational Safety and Ergonomics
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Purpose: The lean construction techniques have been considered as an effective approach and strategy to reduce accidents in construction projects. This paper aims to investigate the application of the lean construction principle and its impact on occupational health and safety. Materials and Methods: To achieve the aim analytical descriptive method was used. The data was collected through a questionnaire, with 70 respondents who were chosen in a random stratified sample method. The questionnaire evaluated the perception of contractors and consultants about the lean construction important factors and its impact on the construction projects safety. Results and Conclusions There is an agreement that, the application of lean construction techniques can be impeded by challenges like lack of lean construction knowledge, complexity, misconception about lean and difficulties in changing employees. The study identified strategies that could be used to address these challenges which will improve the safety of construction projects. These include enlightenment on benefits of the lean practice, publication of improvements realized from lean practice, training, workers’ involvement and empowerment, persistence, robust planning, and gradual implementation.

ACS Style

Yazan Issa Abu Aisheh; Bassam A. Tayeh; Wesam Salah Alaloul; Ali Almalki. Health and safety improvement in construction projects: a lean construction approach. International Journal of Occupational Safety and Ergonomics 2021, 1 -13.

AMA Style

Yazan Issa Abu Aisheh, Bassam A. Tayeh, Wesam Salah Alaloul, Ali Almalki. Health and safety improvement in construction projects: a lean construction approach. International Journal of Occupational Safety and Ergonomics. 2021; ():1-13.

Chicago/Turabian Style

Yazan Issa Abu Aisheh; Bassam A. Tayeh; Wesam Salah Alaloul; Ali Almalki. 2021. "Health and safety improvement in construction projects: a lean construction approach." International Journal of Occupational Safety and Ergonomics , no. : 1-13.

Review article
Published: 01 June 2021 in Journal of Cleaner Production
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The punitive environmental legislation set by the global community has shifted the direction of research involve in construction industry towards the utilization of secondary raw materials in designing and constructing new structures. Rice husk (RH) is a by-product obtained from the rice mill process whose generation accounts up to 200 kg per ton of rice. The existing literature showed the vast potential of using rice husk ash (RHA) as a replacement for cement or as admixtures. This paper aims to critically review previous studies on RHA as a waste material. The utilization of this waste in concrete contributes to nurturing more sustainable and greener development, thereby lessen carbon footprints and minimize solid waste disposal issues. A state-of-the-art-review of literature on the use of RHA is presented in this paper. The impact of RHA on the properties of concrete such as workability, density, compressive strength, flexural strength, splitting tensile strength, modulus of elasticity, durability properties as well as its impact on sustainability are compiled. In addition, the technical results are complimented with the microstructural analysis evaluated through scanning electron microscopy (SEM). From the data garnered, it is postulated that RHA beneficially enhance the mechanical strengths coupled with improvement of resistant to sulfate and acid attack. This paper advances novel recommendations and directions for future research towards the application of green RHA-based construction products.

ACS Style

Bassam A. Tayeh; Rayed Alyousef; Hisham Alabduljabbar; Abdulaziz Alaskar. Recycling of rice husk waste for a sustainable concrete: A critical review. Journal of Cleaner Production 2021, 312, 127734 .

AMA Style

Bassam A. Tayeh, Rayed Alyousef, Hisham Alabduljabbar, Abdulaziz Alaskar. Recycling of rice husk waste for a sustainable concrete: A critical review. Journal of Cleaner Production. 2021; 312 ():127734.

Chicago/Turabian Style

Bassam A. Tayeh; Rayed Alyousef; Hisham Alabduljabbar; Abdulaziz Alaskar. 2021. "Recycling of rice husk waste for a sustainable concrete: A critical review." Journal of Cleaner Production 312, no. : 127734.

Journal article
Published: 17 May 2021 in Sustainability
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The existing form of self-compacting concrete (SCC) comprises of a large amount of powdered and fine materials. In this study, a part of the cementitious material was replaced with constant high-volume fly ash, and a portion of fine aggregates was substituted by crumb rubber (CR). Besides that, silica fume (SF) was added, with the hope that by implementing a new type of nanomaterial, the loss in mechanical strength due to previous modifications such as rubberization and replacement will be prevented. Two variables were found to influence the constituent/component in the mix design: SF and CR. The proportion of SF varies from 0% to 10%, while that of CR from 0% to 30% by volume of the total river sand, where 55% of cement was replaced by the fly ash. A total of 13 rubberized SCC samples with CR and SF as controlling variables were made, and their design mix was produced by a Design of Experiment (DOE) under the Response Surface Methodology (RSM). The results reveal a slight increase in the mechanical properties with the addition of SF. The theoretical mathematical models and equation for each different mechanical strength were also developed after incorporating the experimental results into the software.

ACS Style

Wesam Alaloul; Muhammad Musarat; Sani Haruna; Kevin Law; Bassam Tayeh; Waqas Rafiq; Saba Ayub. Mechanical Properties of Silica Fume Modified High-Volume Fly Ash Rubberized Self-Compacting Concrete. Sustainability 2021, 13, 5571 .

AMA Style

Wesam Alaloul, Muhammad Musarat, Sani Haruna, Kevin Law, Bassam Tayeh, Waqas Rafiq, Saba Ayub. Mechanical Properties of Silica Fume Modified High-Volume Fly Ash Rubberized Self-Compacting Concrete. Sustainability. 2021; 13 (10):5571.

Chicago/Turabian Style

Wesam Alaloul; Muhammad Musarat; Sani Haruna; Kevin Law; Bassam Tayeh; Waqas Rafiq; Saba Ayub. 2021. "Mechanical Properties of Silica Fume Modified High-Volume Fly Ash Rubberized Self-Compacting Concrete." Sustainability 13, no. 10: 5571.

Journal article
Published: 29 April 2021 in Journal of Building Engineering
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This research presents a comparative study of different curing regimes, namely, standard curing (SC), internal curing (IC) with polyethylene glycol (PEG) and air curing (AC), used in ultrahigh-performance concrete (UHPC) premixed with different types of nanomaterials. Four types of nano waste materials were prepared, i.e. milled nano-metakaolin (NMK), nano waste glass (NWG) and nano rice husk ash (NRHA) and chemically prepared nano silica (NS). Several UHPC mixes with nanomaterial dosages (1%, 2% and 3%) were investigated. Compressive strength, ultrasonic pulse velocity, sulphate attack and microstructure were analysed. Results indicated the similarity between the performance of SC and IC in NS, NWG and NMK. Moreover, the addition of PEG exerted a negative effect on NRHA. Compressive strength increased by 17%, 24%, 14% and 13% under IC in NWG, NRH, NMK and NS, respectively. By contrast, sorptivity decreased by 84%, 60%, 48% and 60% in NS, NMK, NWG and NRHA under IC.

ACS Style

A. Serag Faried; Sahar A. Mostafa; Bassam A. Tayeh; Taher A. Tawfik. Mechanical and durability properties of ultra-high performance concrete incorporated with various nano waste materials under different curing conditions. Journal of Building Engineering 2021, 43, 102569 .

AMA Style

A. Serag Faried, Sahar A. Mostafa, Bassam A. Tayeh, Taher A. Tawfik. Mechanical and durability properties of ultra-high performance concrete incorporated with various nano waste materials under different curing conditions. Journal of Building Engineering. 2021; 43 ():102569.

Chicago/Turabian Style

A. Serag Faried; Sahar A. Mostafa; Bassam A. Tayeh; Taher A. Tawfik. 2021. "Mechanical and durability properties of ultra-high performance concrete incorporated with various nano waste materials under different curing conditions." Journal of Building Engineering 43, no. : 102569.

Journal article
Published: 29 March 2021 in International Journal of Environmental Research and Public Health
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Infrastructure projects are the foundation for essential public services and have an influential position in societal development. Although the role of infrastructure projects is substantial, they can involve complexities and safety issues that lead to an unsafe environment, and which impacts the project key stakeholders. Therefore, this study aimed to evaluate the barriers to implementing occupational safety in infrastructure projects in the Gaza Strip, which cause serious threats and reduce project performance. To evaluate the barriers, 39 items were highlighted and modified as per the construction context and environment, and which later were distributed in the form of a questionnaire, to get feedback from consultants and contractors. The analysis shows that in the safety policy barriers group, consultants and contractors both ranked the item “a contractor committed to an occupational safety program is not rewarded” first. In the management barriers group, consultants and contractors both ranked the item “safety engineer does not have significant powers, such as stopping work when needed” in the first place. In the behavior and culture barriers group, consultants and contractors both ranked the item “workers who are not committed to occupational safety are not excluded” in the first place. Overall, both consultants and contractors shared the same viewpoint in classifying the barriers in the working environment. The outcome of this study is beneficial for Palestinian construction industry policymakers, so they can monitor the highlighted barriers in on-going infrastructure projects and can modify the safety guidelines accordingly.

ACS Style

Yazan Abu Aisheh; Bassam Tayeh; Wesam Alaloul; Amro Jouda. Barriers of Occupational Safety Implementation in Infrastructure Projects: Gaza Strip Case. International Journal of Environmental Research and Public Health 2021, 18, 3553 .

AMA Style

Yazan Abu Aisheh, Bassam Tayeh, Wesam Alaloul, Amro Jouda. Barriers of Occupational Safety Implementation in Infrastructure Projects: Gaza Strip Case. International Journal of Environmental Research and Public Health. 2021; 18 (7):3553.

Chicago/Turabian Style

Yazan Abu Aisheh; Bassam Tayeh; Wesam Alaloul; Amro Jouda. 2021. "Barriers of Occupational Safety Implementation in Infrastructure Projects: Gaza Strip Case." International Journal of Environmental Research and Public Health 18, no. 7: 3553.

Review
Published: 17 March 2021 in Sustainability
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The Architecture, Engineering, and Construction (AEC) industry is one of the most dangerous industries due to its unique nature. Safety is a critical issue in developed and developing countries. The main objective of this paper was to identify and classify the barriers that hinder the implementation of safety in projects and ways to improve safety performance. The method used in this paper includes a heavy review of many sources related to the safety barriers in the AEC industry, including a process of identification and classification of these barriers, after which we discuss the most popular methods between them, based on the appearance of it in the sources which were reviewed. Then, the ways to improve safety performance were viewed in AEC industry. Based on that, it was found that there are the following 4 categories associated with safety barriers: (1) Behavior Barriers; (2) Management Barriers; (3) Awareness Barriers; and (4) Culture Barriers. At the same time, the most popular barriers are based on appearance in sources: lack of safety training, lack of commitment, work pressure is high when deadlines are approaching, and low level education, lack of experience, and lack of knowledge. The many ways to improve safety performance are illustrated in the end of this paper. The results of this paper show the importance of safety and that the actual safety of the projects should be focused on in order to reduce injuries, accidents, and reduce barriers of applying safety, which will enhance the sustainability and development of safe environments within in AEC industry.

ACS Style

Mohammed Maliha; Yazan Abu Aisheh; Bassam Tayeh; Ali Almalki. Safety Barriers Identification, Classification, and Ways to Improve Safety Performance in the Architecture, Engineering, and Construction (AEC) Industry: Review Study. Sustainability 2021, 13, 3316 .

AMA Style

Mohammed Maliha, Yazan Abu Aisheh, Bassam Tayeh, Ali Almalki. Safety Barriers Identification, Classification, and Ways to Improve Safety Performance in the Architecture, Engineering, and Construction (AEC) Industry: Review Study. Sustainability. 2021; 13 (6):3316.

Chicago/Turabian Style

Mohammed Maliha; Yazan Abu Aisheh; Bassam Tayeh; Ali Almalki. 2021. "Safety Barriers Identification, Classification, and Ways to Improve Safety Performance in the Architecture, Engineering, and Construction (AEC) Industry: Review Study." Sustainability 13, no. 6: 3316.

Journal article
Published: 31 December 2020 in The Open Civil Engineering Journal
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Background: The Architecture, Engineering, and Construction (AEC) industry is one of the sectors that contribute the most to the Palestinian economy. However, it now suffers from many problems, one of which is not adopting new innovations, such as Building Information Modeling (BIM). BIM recently achieved far reaching consideration in the AEC industry. Aim: This research aimed to understand the contribution of BIM to the enhancement and application of Knowledge Areas (KAs) in the AEC industry in Palestine. Methods: A quantitative survey was utilized in the pilot study. Thirty copies of the questionnaire were dispersed to respondents from the target group. The completed questionnaires were analyzed to test for statistical validity and reliability. After the pilot study, the questionnaire was validated and dispersed to the entire sample, comprising respondents from the target group who were selected by convenience sampling. Eighty copies of the questionnaire were dispersed, and 71 copies of the questionnaire were obtained from the respondents with a response rate of 88.8%. Results: To draw meaningful results, the gathered information was analyzed by utilizing quantitative data analysis techniques, including the RII, Pearson correlation analysis, and Factor analysis. Conclusion: The results illustrated the extent of enhancing the application of KAs in the AEC industry using BIM technology from the highest to lowest as follows: Cost Management (CM), Time Management (TM), Resource Management (REM), Procurement Management (PROM), Scope Management (SCM), Stakeholder Management (STM), Integration Management (IM), Quality Management (QM), Communication Management (COM), Risk Management (RM), and Safety Management (SM). As an example, BIM is effectively applied to each KA, and high efficiency is achieved when BIM is applied to TM by 4D modeling; to CM by 5D modeling; to REM by collaboration; to PROM by quantity takeoff; to SCM by element-base; to STM and IM by using integrated project delivery; to QM by using clash detection; to COM by centralized, structured data management, and information flow; to RM by constructability; and to SM by automated safety code checking.

ACS Style

Mohammed N. Maliha; Bassam A. Tayeh; Yazan I. Abu Aisheh. Building Information Modeling (BIM) in Enhancing the Applying of Knowledge Areas in the Architecture, Engineering and Construction (AEC) Industry. The Open Civil Engineering Journal 2020, 14, 388 -401.

AMA Style

Mohammed N. Maliha, Bassam A. Tayeh, Yazan I. Abu Aisheh. Building Information Modeling (BIM) in Enhancing the Applying of Knowledge Areas in the Architecture, Engineering and Construction (AEC) Industry. The Open Civil Engineering Journal. 2020; 14 (1):388-401.

Chicago/Turabian Style

Mohammed N. Maliha; Bassam A. Tayeh; Yazan I. Abu Aisheh. 2020. "Building Information Modeling (BIM) in Enhancing the Applying of Knowledge Areas in the Architecture, Engineering and Construction (AEC) Industry." The Open Civil Engineering Journal 14, no. 1: 388-401.

Journal article
Published: 29 December 2020 in Journal of Materials Research and Technology
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Strengthening of reinforced concrete (RC) beams with Self-compacting concrete (SCC) jacketing reinforced with galvanized welded steel wire mesh (SWM) is one of the latest retrofitting applied techniques. Eighteen small-scale RC beam specimens with all over a length of 1200 mm for each specimen are experimentally assessed to study flexural strength under static loading conditions. Experimental tests have been performed until failure mode on, eleven strengthened samples, four control beams poured monolithically, and three original control beam. The eleven specimens are strengthened using the U-jacketing technique in which a relatively thin reinforced SCC layer is applied for the bottom width and both vertical sides of the original beams. The strengthened beams are categorized into two groups A and B based on test variables, namely, the SWM properties and the bonding mechanism. In this study, the flexural capacity, ductility, stiffness, crack width and deflection are also clarified. Based on achieved test results, all strengthened beams are designed to fail in a ductile manner. The first group of strengthened beams restored on average 110% of the original control beams load capacity, whereas the second strengthened group resorted to 163% on average. Moreover, it is found that the strengthened beams acted in the same manner of the monolithic control beams and acted as a single unit. Accordingly, it is concluded that this strengthening technique can be used confidently in real-life applications, especially for low-priced constructions.

ACS Style

Mohamed A. Abu Maraq; Bassam A. Tayeh; Mohamed M. Ziara; Rayed Alyousef. Flexural behavior of RC beams strengthened with steel wire mesh and self-compacting concrete jacketing — experimental investigation and test results. Journal of Materials Research and Technology 2020, 10, 1002 -1019.

AMA Style

Mohamed A. Abu Maraq, Bassam A. Tayeh, Mohamed M. Ziara, Rayed Alyousef. Flexural behavior of RC beams strengthened with steel wire mesh and self-compacting concrete jacketing — experimental investigation and test results. Journal of Materials Research and Technology. 2020; 10 ():1002-1019.

Chicago/Turabian Style

Mohamed A. Abu Maraq; Bassam A. Tayeh; Mohamed M. Ziara; Rayed Alyousef. 2020. "Flexural behavior of RC beams strengthened with steel wire mesh and self-compacting concrete jacketing — experimental investigation and test results." Journal of Materials Research and Technology 10, no. : 1002-1019.

Journal article
Published: 19 December 2020 in Construction and Building Materials
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Basalt fibres are modern inorganic concrete fibres, fabricated by melting the basalt rock. These fibres exhibited remarkable resistance to elevated temperatures in comparison with other manufactured fibres. Thus, when the impact of fire is the main consideration, basalt fibres are favoured in the construction of concrete buildings. In this study, the effects of basalt fibres on the workability of fresh self-compacting concrete (SCC) were measured using slump flow, J-ring flow, V-funnel flow and L-box height ratio. The properties of hardened concrete such as compressive strength, splitting strength, modulus of elasticity, flexural strength, and Poisson’s ratio were examined at temperatures between 25 °C and 500 °C. Also, the bond strength between the basalt fibre SCC as an overlay material and a normal concrete substrate was analysed at elevated temperatures. The interfacial surface between the concrete parts of the hybrid samples was roughened in different ways to determine the best roughening mode, which induced high slant shear strength of concrete under fire. The experimental results revealed that increasing the temperature up to 500 °C reduced the tensile and compressive strengths of SCC by over 20%. The optimum slant shear strength of hybrid concrete under fire was achieved by roughening the interfacial surface through the sandblasting method.

ACS Style

James H. Haido; Bassam A. Tayeh; Samadar S. Majeed; Mehmet Karpuzcu. Effect of high temperature on the mechanical properties of basalt fibre self-compacting concrete as an overlay material. Construction and Building Materials 2020, 268, 121725 .

AMA Style

James H. Haido, Bassam A. Tayeh, Samadar S. Majeed, Mehmet Karpuzcu. Effect of high temperature on the mechanical properties of basalt fibre self-compacting concrete as an overlay material. Construction and Building Materials. 2020; 268 ():121725.

Chicago/Turabian Style

James H. Haido; Bassam A. Tayeh; Samadar S. Majeed; Mehmet Karpuzcu. 2020. "Effect of high temperature on the mechanical properties of basalt fibre self-compacting concrete as an overlay material." Construction and Building Materials 268, no. : 121725.

Short communication
Published: 04 November 2020 in Case Studies in Construction Materials
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This study investigated the mechanical properties and elevated temperatures of lightweight concrete (LWC) incorporating polypropylene fibre (PPF) and glass fibre (GF). The experimental research used five types of concrete mixtures, which were produced to indicate the effects of PPF and GF. Fibres were added in two ratios (i.e. 0.2 % and 0.4 %) by volume of concrete. A lightweight pumice aggregate was used as a coarse aggregate with a ratio of 65 %. The fresh and hardened LWC properties, such as slump, unit weight, compressive, tensile and flexural strengths, of LWC were analysed. Compressive, flexural strengths and microstructural analysis were investigated under elevated temperatures at ambient temperature, 200 °C, 400 °C and 600 °C for 2 h of exposure time. Flexural and tensile strengths increased by 53 % and 38 % for mixtures containing 0.4 % GF, respectively. Compressive and flexural strengths of the LWC exposed to elevated temperature were improved by adding GF. PPF increased the number of pores of the concrete structure, and elevated temperature resulted in numerous cracks owing to the evaporation of numerous fibres and the replacement of air voids. Consequently, a considerable reduction in compressive and flexural strengths was observed.

ACS Style

Mohamed Amin; Bassam A. Tayeh; Ibrahim Saad Agwa. Investigating the mechanical and microstructure properties of fibre-reinforced lightweight concrete under elevated temperatures. Case Studies in Construction Materials 2020, 13, e00459 .

AMA Style

Mohamed Amin, Bassam A. Tayeh, Ibrahim Saad Agwa. Investigating the mechanical and microstructure properties of fibre-reinforced lightweight concrete under elevated temperatures. Case Studies in Construction Materials. 2020; 13 ():e00459.

Chicago/Turabian Style

Mohamed Amin; Bassam A. Tayeh; Ibrahim Saad Agwa. 2020. "Investigating the mechanical and microstructure properties of fibre-reinforced lightweight concrete under elevated temperatures." Case Studies in Construction Materials 13, no. : e00459.

Journal article
Published: 27 October 2020 in Structures
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Reinforced Concrete (RC) beam is a paramount structural member for sustaining loads. As result, finding an appropriate strengthening technique is necessary not only for maintaining the safety of the structures but also for achieving the life span requirements. This paper provided an analytical inspection for experimental work of RC beams strengthened with Self-compacting concrete (SCC) and galvanized steel welded wire mesh (SWM) as reinforcement in flexural. As for practical work, the test program included eighteen small-scale beams. All beams were subjected to monotonically loading rate until failure on three control beams, on four monolithic casted control beams and eleven strengthened beams. The strengthened beams were categorized into two groups A and B based on test variables, namely, the SWM properties and the bonding technique. Based on achieved test results, this strengthening technique improved the flexural capacity of strengthened beams significantly. Simplified structural design for predicting the flexural strength and deflection was introduced in this paper at yielding and at the ultimate stages. The comparison was conducted between tested experimental results and the theoretical analysis results. This analysis was performed based on the basis of flexural theory and also reasonable consistent between experiment test results and calculated values was gained at the ultimate and yield stage as well as the derived formulas can be used in real-world strengthening applications.

ACS Style

Bassam A. Tayeh; Mohamed A. Abu Maraq; Mohamed M. Ziara. Flexural performance of reinforced concrete beams strengthened with self-compacting concrete jacketing and steel welded wire mesh. Structures 2020, 28, 2146 -2162.

AMA Style

Bassam A. Tayeh, Mohamed A. Abu Maraq, Mohamed M. Ziara. Flexural performance of reinforced concrete beams strengthened with self-compacting concrete jacketing and steel welded wire mesh. Structures. 2020; 28 ():2146-2162.

Chicago/Turabian Style

Bassam A. Tayeh; Mohamed A. Abu Maraq; Mohamed M. Ziara. 2020. "Flexural performance of reinforced concrete beams strengthened with self-compacting concrete jacketing and steel welded wire mesh." Structures 28, no. : 2146-2162.

Journal article
Published: 30 September 2020 in Journal of Materials Research and Technology
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This research aimed to investigate the mechanical and durability properties of roller-compacted concrete (RCC) containing ground calcium carbonate (GCC). Five different mixture combinations were prepared by replacing cement with GCC at the levels of 5%, 10%, 15%, 20% and 25% by weight. The water contents of the mixture were optimised with the maximum density method. The compressive and flexural strengths of the RCC mixtures were evaluated up to 90 days. Durability characteristics, such as water absorption rates, sulphate and freeze–thaw resistances, were also evaluated in this study. The GCC inclusion of up to 15% increased the mechanical strength values and enhanced the durability characteristics of the RCC mixtures. Scanning electron microscopy images of the additional 15% GCC were also utilised. Results revealed that GCC inclusion exhibited an improvement in the durability properties of the specimens.

ACS Style

Sadik Alper Yildizel; Gokhan Calis; Bassam A. Tayeh. Mechanical and durability properties of ground calcium carbonate-added roller-compacted concrete for pavement. Journal of Materials Research and Technology 2020, 9, 13341 -13351.

AMA Style

Sadik Alper Yildizel, Gokhan Calis, Bassam A. Tayeh. Mechanical and durability properties of ground calcium carbonate-added roller-compacted concrete for pavement. Journal of Materials Research and Technology. 2020; 9 (6):13341-13351.

Chicago/Turabian Style

Sadik Alper Yildizel; Gokhan Calis; Bassam A. Tayeh. 2020. "Mechanical and durability properties of ground calcium carbonate-added roller-compacted concrete for pavement." Journal of Materials Research and Technology 9, no. 6: 13341-13351.

Journal article
Published: 24 September 2020 in Journal of King Saud University - Engineering Sciences
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Achieving construction projects (CPs) with minimal waste requires not only good construction planning, but also effective management for safety and waste of resources through the project cycle. The aim of this paper is to identify and rank safety factors (SF) during the design phase (DPh) of a project that have positive effects in minimizing waste (cost, time and materials) during its construction. Data and information was gathered from available literature, structured interviews, and questionnaire conducted for 111 randomly selected construction organizations. Triangulation method to enhance the validity and reliability of the study findings was used. The research revealed 18 important SF that had positive effects on minimizing waste in CPs during the DPh. The five most important SF that should be considered to minimise waste are: capabilities and behaviour of the design team in the safety field, appropriateness of quantities and specifications for safety system (SS), appropriateness of foundation system for SS, appropriate public and special conditions for SS and appropriate electrical design for SS. The best linear model was developed on the basis of the importance index of the identified factors. A model was developed to minimize waste in CPs by using SS during the DPh. It is recommended that adequate attention must be given to safety criteria during DPh to minimize resources waste.

ACS Style

Kamal Mahfuth; Amara Loulizi; Bassam A. Tayeh; Khalid Al Hallaq; Yazan Issa Abu Aisheh. Using safety system during the design phase to minimize waste in construction projects. Journal of King Saud University - Engineering Sciences 2020, 1 .

AMA Style

Kamal Mahfuth, Amara Loulizi, Bassam A. Tayeh, Khalid Al Hallaq, Yazan Issa Abu Aisheh. Using safety system during the design phase to minimize waste in construction projects. Journal of King Saud University - Engineering Sciences. 2020; ():1.

Chicago/Turabian Style

Kamal Mahfuth; Amara Loulizi; Bassam A. Tayeh; Khalid Al Hallaq; Yazan Issa Abu Aisheh. 2020. "Using safety system during the design phase to minimize waste in construction projects." Journal of King Saud University - Engineering Sciences , no. : 1.

Original paper
Published: 18 August 2020 in Arabian Journal of Geosciences
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Concrete production consumes a large amount of fine and coarse aggregates. Therefore, eliminating or reducing the consumption of aggregates in concrete can produce environment-friendly building materials. Considerable research has confirmed that the use of waste materials in concrete addresses the high utilisation of raw materials. Walnut is a common farming product in the north of Iraq. A substantial amount of walnut shells is disposed of in landfills. In the present work, crushed walnut shells (CWS) were selected as partial substitute for coarse and fine aggregates at ratios of 5 to 25% with an increment of 5%. The experimental work was divided into three parts. Firstly, fine aggregates were replaced with CWS at the preceding ratios. Secondly, coarse aggregates were substituted with CWS at the aforementioned ratios. Thirdly, fine and coarse aggregates were replaced by CWS at the same proportions. Absorption ratio, compressive strength, flexural strength, splitting strength and dry density were determined at 28 days for all the mixtures and the control sample. Results showed that all tested properties, except absorption ratio, decreased when CWS was used. Optimal results were achieved when fine and coarse aggregates were replaced together with CWS. Advantageous values were obtained with a 15% CWS replacement for both types of aggregates.

ACS Style

Nahla Hilal; Taghreed Kh Mohammed Ali; Bassam A. Tayeh. Properties of environmental concrete that contains crushed walnut shell as partial replacement for aggregates. Arabian Journal of Geosciences 2020, 13, 1 -9.

AMA Style

Nahla Hilal, Taghreed Kh Mohammed Ali, Bassam A. Tayeh. Properties of environmental concrete that contains crushed walnut shell as partial replacement for aggregates. Arabian Journal of Geosciences. 2020; 13 (16):1-9.

Chicago/Turabian Style

Nahla Hilal; Taghreed Kh Mohammed Ali; Bassam A. Tayeh. 2020. "Properties of environmental concrete that contains crushed walnut shell as partial replacement for aggregates." Arabian Journal of Geosciences 13, no. 16: 1-9.

Research article
Published: 16 July 2020 in Advances in Civil Engineering
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This study presents a numerical investigation on the shear behaviour of shear-strengthened reinforced concrete (RC) beams by using various ultrahigh performance fibre-reinforced concrete (UHPFRC) systems. The proposed 3D finite element model (FEM) was verified by comparing its results with those of experimental studies in the literature. The validated numerical model is used to analyse the crucial parameters, which are mainly related to the design of RC beams and shear-strengthened UHPFRC layers, such as the effect of shear span-to-depth ratio on the shear behaviour of the strengthened or nonstrengthened RC beams and the effect of geometry and length of UHPFRC layers. Moreover, the effect of the UHPFRC layers’ reinforcement ratio and strengthening of one longitudinal vertical face on the mechanical performance of RC beams strengthened in shear with UHPFRC layers is investigated. Results of the analysed beams show that the shear span-to-depth ratio significantly affects the shear behaviour of not only the normal-strength RC beams but also the RC beams strengthened with UHPFRC layers. However, the effect of shear span-to-depth ratio has not been considered in existing design code equations. Consequently, this study suggests two formulas to estimate the shear strength of normal-strength RC beams and UHPFRC-strengthened RC beams considering the effect of the shear span-to-depth ratio.

ACS Style

Walid Mansour; Bassam A. Tayeh. Shear Behaviour of RC Beams Strengthened by Various Ultrahigh Performance Fibre-Reinforced Concrete Systems. Advances in Civil Engineering 2020, 2020, 1 -18.

AMA Style

Walid Mansour, Bassam A. Tayeh. Shear Behaviour of RC Beams Strengthened by Various Ultrahigh Performance Fibre-Reinforced Concrete Systems. Advances in Civil Engineering. 2020; 2020 ():1-18.

Chicago/Turabian Style

Walid Mansour; Bassam A. Tayeh. 2020. "Shear Behaviour of RC Beams Strengthened by Various Ultrahigh Performance Fibre-Reinforced Concrete Systems." Advances in Civil Engineering 2020, no. : 1-18.

Journal article
Published: 16 July 2020 in Journal of Cleaner Production
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Recent advancements in recycling have transformed nonrenewable resources into partially renewable resources. In line with these advancements, the application of wastes, including ceramics, as substitute aggregate materials for construction has elicited considerable research interest. Ceramic waste aggregates can be used to address complex problems, such as the shortage of materials in construction sites, and reduce environmental wastes. This study aims to investigate the effectiveness of replacing silica fume (SF) and metakaolin (MK) with cement to improve ultrahigh-performance concrete (UHPC) prepared using ceramic wastes as coarse aggregates. Eleven UHPC mixes with 10%, 20% and 30% proportions of either SF or MK were designed. The fresh, physical, mechanical and microstructure properties of these mixes were evaluated, and test results showed that replacing cement with either SF or MK can improve the mechanical and physical properties of UHPC. The use of this waste as construction material will yield substantial technical, economic and environmental benefits, particularly from the perspective of sustainable development. The results showed that replacing SF or MK is effective in improving the strength of UHPC, particularly when the SiO2/CaO ratio was increased to 2.98. The 28-day compressive strength of UHPC with SF increased from 133.1 MPa to 146.6 MPa due to the improved microstructure and denser matrix.

ACS Style

Mohamed Amin; Bassam A. Tayeh; Ibrahim Saad Agwa. Effect of using mineral admixtures and ceramic wastes as coarse aggregates on properties of ultrahigh-performance concrete. Journal of Cleaner Production 2020, 273, 123073 .

AMA Style

Mohamed Amin, Bassam A. Tayeh, Ibrahim Saad Agwa. Effect of using mineral admixtures and ceramic wastes as coarse aggregates on properties of ultrahigh-performance concrete. Journal of Cleaner Production. 2020; 273 ():123073.

Chicago/Turabian Style

Mohamed Amin; Bassam A. Tayeh; Ibrahim Saad Agwa. 2020. "Effect of using mineral admixtures and ceramic wastes as coarse aggregates on properties of ultrahigh-performance concrete." Journal of Cleaner Production 273, no. : 123073.

Journal article
Published: 18 June 2020 in Journal of King Saud University - Engineering Sciences
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The sustainable utilization of demolition wastes in the production of building materials is regarded as an eco-efficient approach for conserving naturally-occurring resources accompanied by resolving the environmental problems caused by these wastes. Accordingly, the motivation behind this work is evaluating the single and combined effect of nano-waste ceramic (NWC) and nano silica (NS) on the performance of Portland cement concrete. Portland cement was individually replaced by different contents of NWC (2–10 wt%) and NS (1–4 wt%). Another mixture was designed to evaluate the synergetic impact of NS and NWC mixture (3 and 6 wt%) on the performance of concrete. The mechanical (flexural, splitting tensile and compressive strengths) and nondestructive tests (Ultrasonic Pulse Velocity ‘UPV’) were carried on the control and nano-modified hardened concrete. The results showed that the increase of NWC content up to 6 wt% has resulted in a noticeable increment in strengths at all curing ages, followed by a reduction in strengths when NWC content reaches 10 wt%. However, the usage of 10% NWC illustrates a slight enhancement in strengths compared to control sample. All over the mixtures, the nano-silica modified samples demonstrate a slight enhancement in the mechanical properties compared to NWC. The highest mechanical properties accompanied by the shortest transmitted waves were achieved by the hardened samples having the mixture of 3 wt% NS and 6 wt% NWC. This means that the sustainable utilization of NWC not only improves the performance of concrete but also resolves the environmental problems caused by this waste.

ACS Style

Taher A. Tawfik; Khaled Aly Metwally; S.A. El-Beshlawy; Doha M. Al Saffar; Bassam A. Tayeh; Hassan Soltan Hassan. Exploitation of the nanowaste ceramic incorporated with nano silica to improve concrete properties. Journal of King Saud University - Engineering Sciences 2020, 1 .

AMA Style

Taher A. Tawfik, Khaled Aly Metwally, S.A. El-Beshlawy, Doha M. Al Saffar, Bassam A. Tayeh, Hassan Soltan Hassan. Exploitation of the nanowaste ceramic incorporated with nano silica to improve concrete properties. Journal of King Saud University - Engineering Sciences. 2020; ():1.

Chicago/Turabian Style

Taher A. Tawfik; Khaled Aly Metwally; S.A. El-Beshlawy; Doha M. Al Saffar; Bassam A. Tayeh; Hassan Soltan Hassan. 2020. "Exploitation of the nanowaste ceramic incorporated with nano silica to improve concrete properties." Journal of King Saud University - Engineering Sciences , no. : 1.