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Ehsan Mohseni
School of Architecture and Built Environment, The University of Newcastle, Callaghan, NSW 2308, Australia

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Correction
Published: 02 June 2021 in Materials
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The authors regret that Figures 6 and 11b in

ACS Style

Amir Ghanei; Faezeh Jafari; Mojdeh Khotbehsara; Ehsan Mohseni; Waiching Tang; Hongzhi Cui. Correction: Ghanei et al. Effect of Nano-CuO on Engineering and Microstructure Properties of Fibre-Reinforced Mortars Incorporating Metakaolin: Experimental and Numerical Studies. Materials 2017, 10, 1215. Materials 2021, 14, 3012 .

AMA Style

Amir Ghanei, Faezeh Jafari, Mojdeh Khotbehsara, Ehsan Mohseni, Waiching Tang, Hongzhi Cui. Correction: Ghanei et al. Effect of Nano-CuO on Engineering and Microstructure Properties of Fibre-Reinforced Mortars Incorporating Metakaolin: Experimental and Numerical Studies. Materials 2017, 10, 1215. Materials. 2021; 14 (11):3012.

Chicago/Turabian Style

Amir Ghanei; Faezeh Jafari; Mojdeh Khotbehsara; Ehsan Mohseni; Waiching Tang; Hongzhi Cui. 2021. "Correction: Ghanei et al. Effect of Nano-CuO on Engineering and Microstructure Properties of Fibre-Reinforced Mortars Incorporating Metakaolin: Experimental and Numerical Studies. Materials 2017, 10, 1215." Materials 14, no. 11: 3012.

Journal article
Published: 31 December 2020 in Renewable Energy
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This study evaluates the efficiency of phase change materials (PCMs) in improvements in thermal performance and thermal comfort of a residential building. The heat transfer of concrete containing PCM, which has been experimentally examined, was numerically modeled and validated in this study. PCMs with melting temperatures ranging from 19 to 29 °C and thicknesses of 5 and 10 mm were applied in different building elements. After finding the optimum PCM with respect to the energy analysis, the impacts of the meteorological parameters and cooling and heating loads were evaluated. The experimental results were in a good agreement with the EnergyPlus PCM module in the numerical model. The results indicated that models integrated with PCM are able to improve the indoor comfort and to reduce the heating and cooling loads and temperature fluctuations. The PCM with a melting temperature of 21 °C and thickness of 10 mm positioned in the roof and wall showed the best performance in the energy consumption and transfering the loads away from the peak demand times. The environmental analysis indicated that the total CO2 emission reduction would be about 264 tone when PCM with 10 mm thick is applied to a building with a life span of 50 years. The shortest payback period for building using PCM-concrete was 16.6 years.

ACS Style

Ehsan Mohseni; Waiching Tang. Parametric analysis and optimisation of energy efficiency of a lightweight building integrated with different configurations and types of PCM. Renewable Energy 2020, 168, 865 -877.

AMA Style

Ehsan Mohseni, Waiching Tang. Parametric analysis and optimisation of energy efficiency of a lightweight building integrated with different configurations and types of PCM. Renewable Energy. 2020; 168 ():865-877.

Chicago/Turabian Style

Ehsan Mohseni; Waiching Tang. 2020. "Parametric analysis and optimisation of energy efficiency of a lightweight building integrated with different configurations and types of PCM." Renewable Energy 168, no. : 865-877.

Research article
Published: 26 July 2020 in Journal of Composite Materials
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This paper aims to evaluate the impact of ceramic waste powder (CWP), micro silica (MS) and steel fiber (SF) on self-compacting mortar. CWP at ratios of 10 and 20%, and MS at 1 and 5% by weight of cement were replaced the cement. Beside, SF was added at ratios of 0.5 and 1% of cement. Mini slump flow diameter and mini V-funnel flow time tests were carried out to determine the workability of fresh composites. Compressive strength, flexural strength, water absorption, electrical resistivity and drying shrinkage tests were performed on hardened mortars. Scanning electron microscope (SEM) technique was employed to assess the microstructure. The results indicated that CWP reduced the mechanical properties by about 20% and increased permeability by about 14%. However, inclusion of micro silica particles improved the properties outstandingly. Compressive strength increased about 30% by inclusion of MS. It was also observed that the addition of fibers from 0.5% to 1% increased the flexural strength. This improvement was more obvious in samples with higher contents of micro silica. It can be reported that by including the both micro silica and steel fibers, the bonding between the cement paste and fibers was developed. Replacement of micro silica led to increase of electrical resistivity by about 99% in samples containing 20% ceramic waste powder. The microstructure studies confirmed the significant increase of density and uniformity of the hydration products in the presence of micro silica particles.

ACS Style

Alireza Mansoori; Mohammad Mohtasham Moein; Ehsan Mohseni. Effect of micro silica on fiber-reinforced self-compacting composites containing ceramic waste. Journal of Composite Materials 2020, 55, 95 -107.

AMA Style

Alireza Mansoori, Mohammad Mohtasham Moein, Ehsan Mohseni. Effect of micro silica on fiber-reinforced self-compacting composites containing ceramic waste. Journal of Composite Materials. 2020; 55 (1):95-107.

Chicago/Turabian Style

Alireza Mansoori; Mohammad Mohtasham Moein; Ehsan Mohseni. 2020. "Effect of micro silica on fiber-reinforced self-compacting composites containing ceramic waste." Journal of Composite Materials 55, no. 1: 95-107.

Journal article
Published: 21 March 2020 in Construction and Building Materials
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Over the last few years, phase change materials (PCMs) have been proved capable to improve the thermal performance of cement-based materials. However, the issues of inorganic PCM leakage and corrosion have led to apprehension. The present study aims to investigate the feasibility of using a dual-layer coating system to improve leakage and corrosion resistance of concrete made of macro-encapsulated inorganic PCM-lightweight aggregate (PCM-LWA). The coated PCM-LWA system is referred to thermal energy storage aggregate (TESA). The effect of TESA at different volume fractions on mechanical, thermal and corrosion performances of concrete were investigated. Test results indicated that the compressive strength of TESA concrete reduced by 6–9% compared to the LWA concrete. However, TESA concrete did not lose strength when subjected to thermal cycles between 15 and 40 °C, which represents the thermal reliability of TESA system. The thermogravimetry analysis and differential scanning calorimeter test results indicated that the PCM was thermally stable and reliable. The thermal performance test demonstrated the feasibility and functionality of using TESA in concrete structures. Infrared thermography camera indicated that the surface temperature of TESA concrete was lower than that of the control mixture. The accelerated corrosion test demonstrated the significant role of the dual-layer coating system, which can reduce the leakage of PCM and avoid the detrimental impact of inorganic PCM on the corrosion of reinforcing steel. Besides, the permeability resistance of concrete was improved using TESA.

ACS Style

Ehsan Mohseni; Waiching Tang; Kamal Khayat; Hongzhi Cui. Thermal performance and corrosion resistance of structural-functional concrete made with inorganic PCM. Construction and Building Materials 2020, 249, 118768 .

AMA Style

Ehsan Mohseni, Waiching Tang, Kamal Khayat, Hongzhi Cui. Thermal performance and corrosion resistance of structural-functional concrete made with inorganic PCM. Construction and Building Materials. 2020; 249 ():118768.

Chicago/Turabian Style

Ehsan Mohseni; Waiching Tang; Kamal Khayat; Hongzhi Cui. 2020. "Thermal performance and corrosion resistance of structural-functional concrete made with inorganic PCM." Construction and Building Materials 249, no. : 118768.

Original paper
Published: 25 January 2020 in International Journal of Environmental Science and Technology
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Structural-grade geopolymer concrete (GPC) containing metakaolin (MK) was assessed by partial inclusion of recycled coarse aggregate (RCA) to produce environmental-friendly composites. Polypropylene (PP) fiber was also used at different weight ratios. Mechanical and durability properties of GPCs were then evaluated. The impact of fiber and RCA on the microstructure of geopolymer paste and interfacial transition zone in different parts were evaluated. The results indicated no significant change on compressive strength by the inclusion of PP fiber. However, a remarkable improvement in flexural and splitting tensile strength and drying shrinkage was observed through the inclusion of PP fiber. Load–displacement graphs revealed that PP fiber increases the GPC fracture toughness and improves the maximum load capacity. Although the compressive strength of samples decreased by the RCA inclusion, the strengths achieved were still appropriate for structural applications. From microstructural point of view, it was found that fiber and geopolymer paste have a firm bound, which would contribute to constraining the propagation of potential cracks. It was indicated that the combination of 1% PP fiber and 20% RCA in MK-based GPC leads to an eco-friendly concrete mix with appropriate hardening properties that would contribute to the sustainability in the construction industry.

ACS Style

B. Behforouz; V. S. Balkanlou; F. Naseri; E. Kasehchi; E. Mohseni; Togay Ozbakkaloglu. Investigation of eco-friendly fiber-reinforced geopolymer composites incorporating recycled coarse aggregates. International Journal of Environmental Science and Technology 2020, 17, 3251 -3260.

AMA Style

B. Behforouz, V. S. Balkanlou, F. Naseri, E. Kasehchi, E. Mohseni, Togay Ozbakkaloglu. Investigation of eco-friendly fiber-reinforced geopolymer composites incorporating recycled coarse aggregates. International Journal of Environmental Science and Technology. 2020; 17 (6):3251-3260.

Chicago/Turabian Style

B. Behforouz; V. S. Balkanlou; F. Naseri; E. Kasehchi; E. Mohseni; Togay Ozbakkaloglu. 2020. "Investigation of eco-friendly fiber-reinforced geopolymer composites incorporating recycled coarse aggregates." International Journal of Environmental Science and Technology 17, no. 6: 3251-3260.

Journal article
Published: 01 November 2019 in Construction and Building Materials
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ACS Style

Ehsan Mohseni; W.C. Tang; Shanyong Wang. Development of thermal energy storage lightweight structural cementitious composites by means of macro-encapsulated PCM. Construction and Building Materials 2019, 225, 182 -195.

AMA Style

Ehsan Mohseni, W.C. Tang, Shanyong Wang. Development of thermal energy storage lightweight structural cementitious composites by means of macro-encapsulated PCM. Construction and Building Materials. 2019; 225 ():182-195.

Chicago/Turabian Style

Ehsan Mohseni; W.C. Tang; Shanyong Wang. 2019. "Development of thermal energy storage lightweight structural cementitious composites by means of macro-encapsulated PCM." Construction and Building Materials 225, no. : 182-195.

Erratum
Published: 25 October 2019 in Construction and Building Materials
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ACS Style

Ehsan Mohseni; Mahyar Jafar Kazemi; Mahdi Koushkbaghi; Behnam Zehtab; Babak Behforouz. Corrigendum to “Evaluation of mechanical and durability properties of fiber-reinforced lightweight geopolymer composites based on rice husk ash and nanoalumina” [Constr. Build. Mater. 209 (2019) 532–540]. Construction and Building Materials 2019, 232, 117262 .

AMA Style

Ehsan Mohseni, Mahyar Jafar Kazemi, Mahdi Koushkbaghi, Behnam Zehtab, Babak Behforouz. Corrigendum to “Evaluation of mechanical and durability properties of fiber-reinforced lightweight geopolymer composites based on rice husk ash and nanoalumina” [Constr. Build. Mater. 209 (2019) 532–540]. Construction and Building Materials. 2019; 232 ():117262.

Chicago/Turabian Style

Ehsan Mohseni; Mahyar Jafar Kazemi; Mahdi Koushkbaghi; Behnam Zehtab; Babak Behforouz. 2019. "Corrigendum to “Evaluation of mechanical and durability properties of fiber-reinforced lightweight geopolymer composites based on rice husk ash and nanoalumina” [Constr. Build. Mater. 209 (2019) 532–540]." Construction and Building Materials 232, no. : 117262.

Journal article
Published: 01 September 2019 in Emerging Materials Research
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An experimental study was performed to assess the effect of metakaolin (MK) as supplementary cementitious material (SCM), and limestone powder (LP) and nano-TiO2 (NT) as mineral admixtures, on the pore structure, mechanical and durability of self-compacting concrete (SCC). The fresh state performance was evaluated by slump flow, T50, V-funnel, and L-box tests, and hardened state parameters were analyzed through compressive strength, water absorption, density and electrical resistivity. Furthermore, permeability was analyzed by means of rapid chloride permeability test (RCPT) and mercury intrusion porosimetry (MIP). Using additives resulted in improvement of rheological properties and compressive strength. Additionally, the density and electrical resistivity of SCC mixes containing SCMs and NT were higher than those of the control SCC mixes. Low absorption and permeability values were obtained for the mixes containing 5% NT. The results herein reported suggest that replacement ratios of 15% MK, 10% LP and 5% NT can be considered as optimal from cost-benefit point of view in terms of fresh and hardened state performance. Predictive models for the hardened properties analyzed have been obtained using artificial neural networks (ANN). ANN has proven an appropriate alternative method for predicting the hardened properties of SCC mixes.

ACS Style

Pedram Alipour; Babak Behforouz; Ehsan Mohseni; Behnam Zehtab. Investigation of SCC characterizations incorporating supplementary cementitious materials. Emerging Materials Research 2019, 8, 492 -507.

AMA Style

Pedram Alipour, Babak Behforouz, Ehsan Mohseni, Behnam Zehtab. Investigation of SCC characterizations incorporating supplementary cementitious materials. Emerging Materials Research. 2019; 8 (3):492-507.

Chicago/Turabian Style

Pedram Alipour; Babak Behforouz; Ehsan Mohseni; Behnam Zehtab. 2019. "Investigation of SCC characterizations incorporating supplementary cementitious materials." Emerging Materials Research 8, no. 3: 492-507.

Journal article
Published: 06 April 2019 in Molecules
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The present study aims to investigate the impact of thermal energy storage aggregate (TESA) and nano-titanium (NT) on properties of structural concrete. TESA was made of scoria encapsulated with phase change materials (PCMs). Coarse aggregates were replaced by TESA at 100% by volume of aggregate and NT was added at 5% by weight of cement. Compressive strength, probability of corrosion, thermal performance, and microstructure properties were studied. The results indicated that the presence of TESA reduced the compressive strength of concrete, although the strength was still high enough to be used as structural concrete. The use of TESA significantly improved the thermal performance of concrete, and slightly improved the resistance of corrosion in concrete. The thermal test results showed that TESA concrete reduces the peak temperature by 2 °C compared to the control. The addition of NT changed the microstructure of concrete, which resulted in higher compressive strength. Additionally, the use of NT further enhanced the thermal performance of TESA concrete by reducing the probability of corrosion remarkably. These results confirmed the crucial role of NT in improving the permeability and the thermal conductivity of mixtures containing PCM. In other words, the charging and discharging of TESA was enhanced with the presence of NT in the mixture.

ACS Style

Ehsan Mohseni; Waiching Tang; Shanyong Wang. Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM. Molecules 2019, 24, 1360 .

AMA Style

Ehsan Mohseni, Waiching Tang, Shanyong Wang. Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM. Molecules. 2019; 24 (7):1360.

Chicago/Turabian Style

Ehsan Mohseni; Waiching Tang; Shanyong Wang. 2019. "Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM." Molecules 24, no. 7: 1360.

Journal article
Published: 18 March 2019 in Construction and Building Materials
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In the current study, the physical and mechanical properties of polypropylene fiber-reinforced lightweight geopolymer concretes are assessed. Geopolymer synthesis consists of rice husk ash (RHA) and nano-Al2O3 (NA) as solid precursors and 10 M sodium hydroxide (SH) and sodium silicate (SS) with a ratio of SS/SH = 2.5 as alkaline solution. NA amount is 20% of total volume of the binder for all mixtures. Scoria particles are used as lightweight aggregates (LWA) with replacement ratio of 0, 10 and 20% by volume of the total aggregates. Polypropylene (PP) fibers is added to the mixture with the amount of 0, 0.5 and 1% by the volume of the binder. Compressive and flexural strength, density, water absorption and rapid chloride permeability test (RCPT) were evaluated. Results indicated that PP fibers improves the mechanical properties (especially flexural strength) while incorporation of LWA reduced the compressive and flexural strength slightly. Water absorption of geopolymer samples decreased by the incorporation of PP fibers which can compensate significantly the negative impact of LWA replacement. Replacement of 10% LWA does not have significant impact on water absorption and chloride permeability of composites; however, 20% replacement reduced durability. Introduced lightweight geopolymer concrete would be suitable for structural applications due to its relatively low density, high compressive strength and good flexural strength, which is improved by adding PP fibers.

ACS Style

Ehsan Mohseni; Mahyar Jafar Kazemi; Mahdi Koushkbaghi; Behnam Zehtab; Babak Behforouz. Evaluation of mechanical and durability properties of fiber-reinforced lightweight geopolymer composites based on rice husk ash and nano-alumina. Construction and Building Materials 2019, 209, 532 -540.

AMA Style

Ehsan Mohseni, Mahyar Jafar Kazemi, Mahdi Koushkbaghi, Behnam Zehtab, Babak Behforouz. Evaluation of mechanical and durability properties of fiber-reinforced lightweight geopolymer composites based on rice husk ash and nano-alumina. Construction and Building Materials. 2019; 209 ():532-540.

Chicago/Turabian Style

Ehsan Mohseni; Mahyar Jafar Kazemi; Mahdi Koushkbaghi; Behnam Zehtab; Babak Behforouz. 2019. "Evaluation of mechanical and durability properties of fiber-reinforced lightweight geopolymer composites based on rice husk ash and nano-alumina." Construction and Building Materials 209, no. : 532-540.

Journal article
Published: 12 February 2019 in Construction and Building Materials
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Properties of geopolymer concrete using metakaolin (MK) as the aluminosilicate source and recycled concrete aggregate (RCA) as partial replacement of natural aggregate are presented in this paper. The effects of sodium silicate (SS) to sodium hydroxide (SH) ratios, and RCA in different percentages on the mechanical and durability properties of geopolymer concrete were determined. Microstructural changes of geopolymers as a result of using RCA were evaluated via scanning electron microscopic (SEM) images. Test results showed that compressive strength of geopolymer concrete improved with increasing the SS/SH ratio. Although the use of RCA reduced compressive strength by up to 28%, the strength was still high enough for structural applications. In addition, increasing the SS/SH ratio reduced the chloride ion permeability and absorption of geopolymer concrete. The morphology results showed that the deboning width at the interfacial transition zone (ITZ) between RCA and binder decreased with the increase of SS/SH ratio. The polymer products in the proximity of adequate monomer ratios became more uniform and homogenous. Results also showed that the binder with a SS/SH ratio of 3 exhibited higher density and less porosity than that with smaller ratios. Therefore, the recycled construction and demolition waste can significantly contribute to the sustainability of construction industry from technical, economic and environmental points of view.

ACS Style

Mahdi Koushkbaghi; Pedram Alipour; Behzad Tahmouresi; Ehsan Mohseni; Ashkan Saradar; Prabir Kumar Sarker. Influence of different monomer ratios and recycled concrete aggregate on mechanical properties and durability of geopolymer concretes. Construction and Building Materials 2019, 205, 519 -528.

AMA Style

Mahdi Koushkbaghi, Pedram Alipour, Behzad Tahmouresi, Ehsan Mohseni, Ashkan Saradar, Prabir Kumar Sarker. Influence of different monomer ratios and recycled concrete aggregate on mechanical properties and durability of geopolymer concretes. Construction and Building Materials. 2019; 205 ():519-528.

Chicago/Turabian Style

Mahdi Koushkbaghi; Pedram Alipour; Behzad Tahmouresi; Ehsan Mohseni; Ashkan Saradar; Prabir Kumar Sarker. 2019. "Influence of different monomer ratios and recycled concrete aggregate on mechanical properties and durability of geopolymer concretes." Construction and Building Materials 205, no. : 519-528.

Journal article
Published: 12 January 2019 in Construction and Building Materials
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Recycled concrete aggregate (RCA) produced from concrete waste has recently been a good alternative to natural aggregate because of the increased focus on sustainable development and environmental benefits. However, concrete incorporating RCA has inferior properties when compared to natural aggregate concrete. The inferior properties of RCA concrete can be improved by incorporating supplementary cementitious materials (SCMs). Fly ash and silica fume are commonly used SCMs in the concrete industry which improve the mechanical properties and durability of concrete. Nevertheless, there is an imminent deficiency of material in certain parts of the world, and finding a replacement is a challenge for the future of the concrete industry. Rice husk ash (RHA) is a waste material that can be used as a partial replacement to improve the inferior property of RCA concrete. In this study, mechanical properties such as compressive strength and splitting tensile strength are studied. Durability properties such as water absorption, chloride diffusion and acid attack were also investigated. Furthermore, fibrous and non-fibrous concrete were made to study the effect of RHA and RCA. The results revealed that RHA can be used to mitigate the poor performance of RCA concrete and improve the bond between concrete and fibers.

ACS Style

Mahdi Koushkbaghi; Mahyar Jafar Kazemi; Hossein Mosavi; Ehsan Mohseni. Acid resistance and durability properties of steel fiber-reinforced concrete incorporating rice husk ash and recycled aggregate. Construction and Building Materials 2019, 202, 266 -275.

AMA Style

Mahdi Koushkbaghi, Mahyar Jafar Kazemi, Hossein Mosavi, Ehsan Mohseni. Acid resistance and durability properties of steel fiber-reinforced concrete incorporating rice husk ash and recycled aggregate. Construction and Building Materials. 2019; 202 ():266-275.

Chicago/Turabian Style

Mahdi Koushkbaghi; Mahyar Jafar Kazemi; Hossein Mosavi; Ehsan Mohseni. 2019. "Acid resistance and durability properties of steel fiber-reinforced concrete incorporating rice husk ash and recycled aggregate." Construction and Building Materials 202, no. : 266-275.

Journal article
Published: 04 September 2018 in Construction and Building Materials
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The aim of this project is to build and use a concrete with minimum irritating impacts on the environment, reasonable price and optimal properties. Geopolymer concrete is new class of mineral binder that due to the high durability, very low energy consumption, very low CO2 emission, low investment cost and also special properties, is distinguished of other mineral binder such as Portland cement. In this study, after construction of metakaolin-based geopolymer concrete containing 0.3, 0.5 and 1% polypropylene (PP) fibers with monomer ratios of 2, 2.5 and 3, engineering properties including compressive strength, flexural strength, displacement, Si/Al ratio, water absorption and electrical resistivity were assessed. Microstructural and structural changes of geopolymers as a result of lead addition/immobilization were evaluated via scanning electron microscopic (SEM) and X-ray Diffraction (XRD) tests. The obtained results showed that using PP fiber in geopolymer samples increased the flexural strength by 28%. Furthermore, as evidenced by XRD diffractogram, the compressive strength improved by increasing the SS/SH ratio due to the formation of crystalline nepheline in the geopolymer specimens. In addition, images of electron microscopy of hardened geopolymer paste confirmed the remarkable increase in the density and uniformity of polymer products in the presence of suitable monomer ratios. In general, it is reported that using 1% PP fibers along with the sodium silicate to sodium hydroxide ratio of 3 had an acceptable outcome in improving geopolymer concrete performance from point of view of environmentally, structurally and economically.

ACS Style

Ehsan Mohseni. Assessment of Na2SiO3 to NaOH ratio impact on the performance of polypropylene fiber-reinforced geopolymer composites. Construction and Building Materials 2018, 186, 904 -911.

AMA Style

Ehsan Mohseni. Assessment of Na2SiO3 to NaOH ratio impact on the performance of polypropylene fiber-reinforced geopolymer composites. Construction and Building Materials. 2018; 186 ():904-911.

Chicago/Turabian Style

Ehsan Mohseni. 2018. "Assessment of Na2SiO3 to NaOH ratio impact on the performance of polypropylene fiber-reinforced geopolymer composites." Construction and Building Materials 186, no. : 904-911.

Journal article
Published: 01 August 2018 in Construction and Building Materials
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Slope vegetation clearing for urban development purposes often leaves the slope prone to surface erosion prior to revegetation establishment. This study is in response to the requirement of immediate slope protection and revegetation. As no research in Australia exists on vegetation concrete technology, this paper analyses and presents the results of growing various native Australian grass species on porous concrete under different mix compositions. It aimed to determine the feasibility of an integration of vegetation and concrete for use in slope protection, more specifically, explored the effect of a concrete environment on the following Australian native grass species: Themeda trianda, Chloris truncata and Elymus scaber. To enhance the survival of grasses, calcium aluminate cement (CAC) with a lower pH than ordinary Portland cement was used. Additionally, the influence of various fly ash contents on strength characteristics (compressive strength, tensile strength and elastic modulus) of porous concrete was also examined. The growth characteristics of the vegetation concrete grass species were monitored for 8 weeks during which the average grass height, relative coverage and root development were observed. The experimental results showed that the compressive and tensile strengths of the tested porous concrete were comparable and similar to the currently applied slope protection methods. Furthermore, it was evident that Chloris truncata was better adapted to the concrete environment than the other two tested grass species. However, Elymus scaber thrived with a remarkable coverage at high fly ash content, whereas Themeda trianda preferred a lower fly ash content. The results pave the path for further research into this technology and have significant implications for the application of vegetation concrete technology, especially in an Australian context.

ACS Style

W.C. Tang; Ehsan Mohseni; Zhiyu Wang. Development of vegetation concrete technology for slope protection and greening. Construction and Building Materials 2018, 179, 605 -613.

AMA Style

W.C. Tang, Ehsan Mohseni, Zhiyu Wang. Development of vegetation concrete technology for slope protection and greening. Construction and Building Materials. 2018; 179 ():605-613.

Chicago/Turabian Style

W.C. Tang; Ehsan Mohseni; Zhiyu Wang. 2018. "Development of vegetation concrete technology for slope protection and greening." Construction and Building Materials 179, no. : 605-613.

Journal article
Published: 01 August 2018 in Journal of Materials in Civil Engineering
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The concrete industry is a remarkable point source of carbon dioxide emission due to the disintegration of raw materials and burning of fuel during the cement manufacturing process. One efficient way to minimize such detrimental environmental effects is utilizing waste and byproduct materials as cement replacements in concrete. An alternative to the production of environmentally friendly concrete is the development of geopolymers. In this study, the possibility of creating structural rice husk ash (RHA)–based geopolymer concrete using high amounts of agricultural solid waste as a byproduct material is investigated. All the samples were reinforced by polypropylene (PP) fiber. The test results indicated that replacement by RHA-based geopolymer improved the mechanical properties of concrete and 100% replacement by geopolymer can be taken into consideration, having the best results environmentally, structurally, and economically. Moreover, the addition of PP fibers increased the flexural and splitting tensile strength. In addition, substantial CO2 reduction, as high as 63%, was measured to be emitted in the creation of the studied sustainable RHA-based geopolymer composites. From the microstructural point of view, reduction of the interfacial transition zone (ITZ) width between the paste and the aggregate is another outcome that could efficiently decrease water permeability.

ACS Style

Seyed Mahmoud Zabihi; Hamidreza Tavakoli; Ehsan Mohseni. Engineering and Microstructural Properties of Fiber-Reinforced Rice Husk–Ash Based Geopolymer Concrete. Journal of Materials in Civil Engineering 2018, 30, 04018183 .

AMA Style

Seyed Mahmoud Zabihi, Hamidreza Tavakoli, Ehsan Mohseni. Engineering and Microstructural Properties of Fiber-Reinforced Rice Husk–Ash Based Geopolymer Concrete. Journal of Materials in Civil Engineering. 2018; 30 (8):04018183.

Chicago/Turabian Style

Seyed Mahmoud Zabihi; Hamidreza Tavakoli; Ehsan Mohseni. 2018. "Engineering and Microstructural Properties of Fiber-Reinforced Rice Husk–Ash Based Geopolymer Concrete." Journal of Materials in Civil Engineering 30, no. 8: 04018183.

Journal article
Published: 19 July 2018 in Construction and Building Materials
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The road and building industry are the largest material consumers of the earth and the largest producer of solid waste. Recycling and reusing waste materials such as construction and asphaltic waste is one of the practical remedies in order to reduce the consumption of mineral materials. In this study, the effect of silica fume, styrene butadiene rubber (SBR) latex, and recycled asphalt pavement (RAP) on the mechanical properties (compressive, flexural and splitting tensile strength, module of elasticity and toughness), permeability characteristics (water penetration depth, rapid chloride ion penetration, electrical resistivity) were assessed. Additionally, microstructure properties were investigated via scanning electronic microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). In this regard, 33, 66 and 100 wt% of coarse aggregates were replaced by RAP. Furthermore, three different curing methods were applied to evaluate the mechanism of latex effect on compressive strength of mixtures. The results showed that the replacement of SBR latex and silica fume led to a significant increase in mechanical properties and reduction of the permeability of concrete mixtures. The interfacial transition zone (ITZ) between the cementitious matrix-aggregate using SEM images indicated that mixtures containing SBR latex and silica fume had a uniform structure at the cementitious matrix-aggregate interface. EDX analysis also indicated the reduction of ITZ thickness and the calcium to silica ratio. It was also found that the compressive strength of the concretes cured in high temperature condition increased remarkably, which exhibits the heat contribution to the formation of a polymer membrane in specimens with latex.

ACS Style

Ali Shadmani; Behzad Tahmouresi; Ashkan Saradar; Ehsan Mohseni. Durability and microstructure properties of SBR-modified concrete containing recycled asphalt pavement. Construction and Building Materials 2018, 185, 380 -390.

AMA Style

Ali Shadmani, Behzad Tahmouresi, Ashkan Saradar, Ehsan Mohseni. Durability and microstructure properties of SBR-modified concrete containing recycled asphalt pavement. Construction and Building Materials. 2018; 185 ():380-390.

Chicago/Turabian Style

Ali Shadmani; Behzad Tahmouresi; Ashkan Saradar; Ehsan Mohseni. 2018. "Durability and microstructure properties of SBR-modified concrete containing recycled asphalt pavement." Construction and Building Materials 185, no. : 380-390.

Journal article
Published: 01 July 2018 in Construction and Building Materials
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ACS Style

Waiching Tang; Zhiyu Wang; Ehsan Mohseni; Shanyong Wang. A practical ranking system for evaluation of industry viable phase change materials for use in concrete. Construction and Building Materials 2018, 177, 272 -286.

AMA Style

Waiching Tang, Zhiyu Wang, Ehsan Mohseni, Shanyong Wang. A practical ranking system for evaluation of industry viable phase change materials for use in concrete. Construction and Building Materials. 2018; 177 ():272-286.

Chicago/Turabian Style

Waiching Tang; Zhiyu Wang; Ehsan Mohseni; Shanyong Wang. 2018. "A practical ranking system for evaluation of industry viable phase change materials for use in concrete." Construction and Building Materials 177, no. : 272-286.

Journal article
Published: 19 February 2018 in Fibers
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Concrete shrinkage and volume reduction happens due to the loss of moisture, which eventually results in cracks and more concrete deformation. In this study, the effect of polypropylene (PP), steel, glass, basalt, and polyolefin fibers on compressive and flexural strength, drying shrinkage, and cracking potential, using the ring test at early ages of high-strength concrete mixtures, was investigated. The restrained shrinkage test was performed on concrete ring specimens according to the ASTM C1581 standard. The crack width and age of restrained shrinkage cracking were the main parameters studied in this research. The results indicated that the addition of fiber increases the compressive strength by 16%, 20%, and 3% at the age of 3, 7, and 28 days, respectively, and increases the flexural toughness index up to 7.7 times. Steel and glass fibers had a better performance in flexural strength, but relatively poor action in the velocity reduction and cracking time of the restrained shrinkage. Additionally, cracks in all concrete ring specimens except for the polypropylene-containing mixture, was developed to a full depth crack. The mixture with polypropylene fiber indicated a reduction in crack width up to 62% and an increasing age cracking up to 84%.

ACS Style

Ashkan Saradar; Behzad Tahmouresi; Ehsan Mohseni; Ali Shadmani. Restrained Shrinkage Cracking of Fiber-Reinforced High-Strength Concrete. Fibers 2018, 6, 12 .

AMA Style

Ashkan Saradar, Behzad Tahmouresi, Ehsan Mohseni, Ali Shadmani. Restrained Shrinkage Cracking of Fiber-Reinforced High-Strength Concrete. Fibers. 2018; 6 (1):12.

Chicago/Turabian Style

Ashkan Saradar; Behzad Tahmouresi; Ehsan Mohseni; Ali Shadmani. 2018. "Restrained Shrinkage Cracking of Fiber-Reinforced High-Strength Concrete." Fibers 6, no. 1: 12.

Journal article
Published: 01 December 2017 in Journal of Cleaner Production
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ACS Style

Ehsan Mohseni; Romina Saadati; Negar Kordbacheh; Zahra Sadat Parpinchi; W.C. Tang. Engineering and microstructural assessment of fibre-reinforced self-compacting concrete containing recycled coarse aggregate. Journal of Cleaner Production 2017, 168, 605 -613.

AMA Style

Ehsan Mohseni, Romina Saadati, Negar Kordbacheh, Zahra Sadat Parpinchi, W.C. Tang. Engineering and microstructural assessment of fibre-reinforced self-compacting concrete containing recycled coarse aggregate. Journal of Cleaner Production. 2017; 168 ():605-613.

Chicago/Turabian Style

Ehsan Mohseni; Romina Saadati; Negar Kordbacheh; Zahra Sadat Parpinchi; W.C. Tang. 2017. "Engineering and microstructural assessment of fibre-reinforced self-compacting concrete containing recycled coarse aggregate." Journal of Cleaner Production 168, no. : 605-613.

Journal article
Published: 23 October 2017 in Materials
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In this study, the effects of nano-CuO (NC) on engineering properties of fibre-reinforced mortars incorporating metakaolin (MK) were investigated. The effects of polypropylene fibre (PP) were also examined. A total of twenty-six mixtures were prepared. The experimental results were compared with numerical results obtained by adaptive neuro-fuzzy inference system (ANFIS) and Primal Estimated sub-GrAdient Solver for SVM (Pegasos) algorithm. Scanning Electron Microscope (SEM) was also employed to investigate the microstructure of the cement matrix. The mechanical test results showed that both compressive and flexural strengths of cement mortars decreased with the increase of MK content, however the strength values increased significantly with increasing NC content in the mixture. The water absorption of samples decreased remarkably with increasing NC particles in the mixture. When PP fibres were added, the strengths of cement mortars were further enhanced accompanied with lower water absorption values. The addition of 2 wt % and 3 wt % nanoparticles in cement mortar led to a positive contribution to strength and resistance to water absorption. Mixture of PP-MK10NC3 indicated the best results for both compressive and flexural strengths at 28 and 90 days. SEM images illustrated that the morphology of cement matrix became more porous with increasing MK content, but the porosity reduced with the inclusion of NC. In addition, it is evident from the SEM images that more cement hydration products adhered onto the surface of fibres, which would improve the fibre–matrix interface. The numerical results obtained by ANFIS and Pegasos were close to the experimental results. The value of R2 obtained for each data set (validate, test and train) was higher than 0.90 and the values of mean absolute percentage error (MAPE) and the relative root mean squared error (PRMSE) were near zero. The ANFIS and Pegasos models can be used to predict the mechanical properties and water absorptions of fibre-reinforced mortars with MK and NC.

ACS Style

Amir Ghanei; Faezeh Jafari; Mojdeh Mehrinejad Khotbehsara; Ehsan Mohseni; Waiching Tang; Hongzhi Cui. Effect of Nano-CuO on Engineering and Microstructure Properties of Fibre-Reinforced Mortars Incorporating Metakaolin: Experimental and Numerical Studies. Materials 2017, 10, 1215 .

AMA Style

Amir Ghanei, Faezeh Jafari, Mojdeh Mehrinejad Khotbehsara, Ehsan Mohseni, Waiching Tang, Hongzhi Cui. Effect of Nano-CuO on Engineering and Microstructure Properties of Fibre-Reinforced Mortars Incorporating Metakaolin: Experimental and Numerical Studies. Materials. 2017; 10 (10):1215.

Chicago/Turabian Style

Amir Ghanei; Faezeh Jafari; Mojdeh Mehrinejad Khotbehsara; Ehsan Mohseni; Waiching Tang; Hongzhi Cui. 2017. "Effect of Nano-CuO on Engineering and Microstructure Properties of Fibre-Reinforced Mortars Incorporating Metakaolin: Experimental and Numerical Studies." Materials 10, no. 10: 1215.