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Dr. Ming Chian Yew
Department of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, University of Tunku Abdul Rahman, Cheras, Kajang 43000, Malaysia

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Research Keywords & Expertise

0 Fire Protection Engineering
0 Cool Roof
0 cooling technology
0 Flame retardant materials
0 coatings and thin films

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Short Biography

His research area is mainly focused on construction building materials and fire protective coatings.

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Editorial article
Published: 03 August 2021 in Frontiers in Built Environment
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Editorial on the Research Topic Cool Roofing Technologies for Sustainable Buildings Innovative cool roofing technologies are a future trend that will enable us to progress towards a low-carbon cleaner planet, as energy management over building has acquired crucial significance to the environment. The combination of innovative active and passive cooling roof technology systems plays an important role towards workable and sustainable development goals. The sustainability valuation of buildings is becoming essential for justifiable development, especially in the construction sector. There are four published articles with nine authors who have contributed to the research topic: “Cool Roofing Technologies for Sustainable Buildings” mainly providing an overview of the cool roofing technology systems. Apart from that, Tatiana and co-workers have been investigating screen wall fire resistance using the finite element method, which was highlighted on the high temperature or flame on the screen wall (Eremina et al.). Based on the results, a new functional dependence in the form of a multiple regression equation has been established, which makes it possible to determine the actual fire resistance limits of screen walls by the thickness of the inner heat-and-burn resistant material, ensuring the prevention of fire propagation, as well as their geometrical parameters without large-scale fire tests. An innovative cool roofing technology system that endorses a combination of passive and active cooling approaches on the reduction of attic temperature of the building has been developed to assess the outcome of numerous roof model designs on heating load to launch the capability of a cooling roof system by keeping the thermal comfort level for residents in the buildings (Yew et al., 2013; Yew et al., 2018). There are four major features in making the cool roof models: i) metal deck roofing, ii) lightweight foam concrete roof tile, iii) moving-air-cavity (MAC) air circulation, and iv) solar-powered fan have been extensively studied and evaluated by researchers (Yew et al.). An innovative cool roof system with the incorporation of lightweight foam concrete tile, MAC, and solar-powered fans has efficiently lowered attic temperatures by 6.0°C compared to the ordinary roof model. Consequently, this innovative integrated cool roofing model design encompasses the ability to improve the comfort level of residents towards long-term sustainable growth with the deployment of renewable energy to preserve and maintain environmental ecosystems. Another study also discusses a cool roof technology system, using rainwater harvesting systems by integrating the smart sensor to cool the roof and attic temperatures for the improvement of the comfort level of building occupants (Yew et al.). Three main components of the cool roof system were introduced: 1) moving-air-cavity (MAC) ventilation, 2) solar-powered fan, and 3) rainwater harvesting system (Yew et al.). These three main components are integrated and control the cool roof system. The experimental work was conducted indoors by using a halogen light as a substitute for solar radiation, while the ambient heat is monitored at about 29.8°C throughout the test. The temperatures of the rooftop surface, MAC aluminum tube, and attic region were measured by K-type thermocouples to evaluate the performance of the cool roof designs. To accelerate the airflow rate within the cavity, the solar-powered fans were integrated into the MAC by rejecting the hot air away before transferring it to the attic area. Meanwhile, an innovative rainwater collecting system was executed to cool off the rooftop temperature rapidly by lessening the rate of heat transmission to the attic region. The result of this inventive cool roofing technology system has successfully lowered the attic temperature by 10.8°C compared to the normal metal deck roofing model. The findings of the project revealed that the integrated cool roofing technology system contributed to the comfort of building occupants whilst also providing a long-term sustainable development for a better world. The energy impact of roofs has mainly been studied by Blackhurst using theoretical models (Blackhurst). Nevertheless, empirical approaches are required for validation. This analysis used combined empirical systems to assess the effect of whitening on the current roofs. A statistical survey has been done with the data of 2 years of hourly site cooling energy use, which was accumulated for 114 residences in Austin, TX. The observed results are mixed and are restricted due to the small treated sample size. The significant impact of whitening varied from a 14 to 49.2% reduction in daytime site cooling. Energy use and a 9.7% increase to a 40.3% decrease in night time site cooling energy use mainly contributed from the individual household comparisons. However, the advantages of whitening are only robust for older roofs and longer service lives for the coating. Finally, most simulations reflect net benefits if the coating lasts at least 5 years for roofs older than 10 years of age. In conclusion, this research topic has received scientist's invaluable contribution by sharing their experimental and theoretical research knowledge on wide-ranging aspects of cool roofing technology systems as well as screen wall fire resistance modeling to compare with the actual fire resistance limits of screen walls. The main aims of emerging building cooling technologies are to diminish the reduction of critical resources, resulting in a lesser carbon footprint, to stop the environmental degradation caused by amenities, organization, and greenhouse gas emissions; and to create built environments that are harmless, industrious, and efficiently employ renewable energy. These articles contain a comprehensive investigation of the cool roofing technology systems that make a significant contribution to mitigating global warming....

ACS Style

Ming Chian Yew. Editorial: Cool Roofing Technologies for Sustainable Buildings. Frontiers in Built Environment 2021, 7, 1 .

AMA Style

Ming Chian Yew. Editorial: Cool Roofing Technologies for Sustainable Buildings. Frontiers in Built Environment. 2021; 7 ():1.

Chicago/Turabian Style

Ming Chian Yew. 2021. "Editorial: Cool Roofing Technologies for Sustainable Buildings." Frontiers in Built Environment 7, no. : 1.

Journal article
Published: 29 July 2021 in Journal of Materials Research and Technology
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Rubberwood biomass ash (RWA), which was derived from the combustion of rubberwood biomass in a fuel factory, was obtained for reuse as a natural mineral filler substitute in water-based intumescent coatings. The specific surface area of the RWA was 3.10 m2/g, with the particle’s surface areas predominant composed of mesopores, which was justified using the Brunauer-Emmett-Teller Test (BET). Rubberwood ash coatings (RWAC) formulated with 3.0 wt% RWA exerted the most homogenous and durable surface matrix in the Accelerating Weathering Test (AWT). Fire-resistant test (FRT) and thermogravimetric analysis (TGA) demonstrated the incorporation of the RWA with the intumescent flame-retardant formulation, generated positive effects in equilibrium end temperature, thermal decomposition, and weight loss reductions. These effects are most prominent in the RWAC-3, which was comprised of 3 wt% RWA, and 50/40/7 wt% vinyl acetate (VA)/intumescent flame retardant additive (IFRA)/pigment. The RWAC-3 showed the lowest equilibrium end temperature at 131.4 °C, the lowest thermal degradation at 71 wt%, and the highest carbonaceous char formation at 12.8 mm. The Surface Electron Microscopy (SEM) and Energy Dispersive X-Ray Spectroscopy (EDX) results exhibited a dense, compact, and coherent char formation for the RWAC-3 sample. The abundant O and P crosslinking structures in the RWAC-3 contributed to the quality of the char barrier. These results are supported by the evidence from Fourier-Transform Infrared Spectroscopy (FTIR), and X-Ray Diffractometer (XRD), which revealed the stretching of the O-H, P-O-C, and P=O molecular functional groups, and the presence of thermally stable phosphate compounds in the RWAC-3.

ACS Style

Jing Han Beh; Ming Kun Yew; Lip Huat Saw. Characterization and fire protection properties of rubberwood biomass ash formulated intumescent coatings for steel. Journal of Materials Research and Technology 2021, 14, 2096 -2106.

AMA Style

Jing Han Beh, Ming Kun Yew, Lip Huat Saw. Characterization and fire protection properties of rubberwood biomass ash formulated intumescent coatings for steel. Journal of Materials Research and Technology. 2021; 14 ():2096-2106.

Chicago/Turabian Style

Jing Han Beh; Ming Kun Yew; Lip Huat Saw. 2021. "Characterization and fire protection properties of rubberwood biomass ash formulated intumescent coatings for steel." Journal of Materials Research and Technology 14, no. : 2096-2106.

Journal article
Published: 30 April 2021 in Materials
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Oil palm shell (OPS) is an agricultural solid waste from the extraction process of palm oil. All these wastes from industry pose serious disposal issues for the environment. This research aims to promote the replacement of conventional coarse aggregates with eco-friendly OPS aggregate which offers several advantages, such as being lightweight, renewable, and domestically available. This paper evaluates the mechanical and thermal performances of renewable OPS lightweight concrete (LWC) reinforced with various type of synthetic polypropylene (SPP) fibers. Monofilament polypropylene (MPS) and barchip polypropylene straight (BPS) were added to concrete at different volume fractions (singly and hybrid) of 0%, 0.1%, 0.3% and 0.4%. All specimens were mixed by using a new mixing method with a time saving of up to 14.3% compared to conventional mixing methods. The effects of SPP fibers on the mechanical properties were investigated by compressive strength, splitting tensile strength and residual strength. The strength of the oil palm shell lightweight concrete hybrid 0.4% (OPSLWC–HYB–0.4%) mixture achieved the highest compressive strength of 29 MPa at 28 days. The inclusion of 0.3% of BPS showed a positive outcome with the lowest thermal conductivity value at 0.55 W/m °C. Therefore, the results revealed that incorporation of BPS fiber enhanced the performance of thermal conductivity tests as compared to inclusion of MPS fiber. Hence, renewable OPS LWC was proven to be a highly recommended environmentally friendly aggregate as an alternative solution to replace natural aggregates used in the concrete industry.

ACS Style

Leong Loh; Ming Yew; Ming Yew; Jing Beh; Foo Lee; Siong Lim; Kok Kwong. Mechanical and Thermal Properties of Synthetic Polypropylene Fiber–Reinforced Renewable Oil Palm Shell Lightweight Concrete. Materials 2021, 14, 2337 .

AMA Style

Leong Loh, Ming Yew, Ming Yew, Jing Beh, Foo Lee, Siong Lim, Kok Kwong. Mechanical and Thermal Properties of Synthetic Polypropylene Fiber–Reinforced Renewable Oil Palm Shell Lightweight Concrete. Materials. 2021; 14 (9):2337.

Chicago/Turabian Style

Leong Loh; Ming Yew; Ming Yew; Jing Beh; Foo Lee; Siong Lim; Kok Kwong. 2021. "Mechanical and Thermal Properties of Synthetic Polypropylene Fiber–Reinforced Renewable Oil Palm Shell Lightweight Concrete." Materials 14, no. 9: 2337.

Original research article
Published: 23 April 2021 in Frontiers in Built Environment
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This cool roof system focuses on utilization of rainwater harvesting systems by integrating the smart sensor to cool the roof and attic temperatures for the improvement of comfort level of building occupants. An ideal cool roof technology system is basically made up of these three components: (1) moving-air-cavity (MAC) ventilation, (2) solar-powered fan and (3) rainwater harvesting system. These three main components integrate to perform and control the cool roof system. Four small-scale cool roof models were designed and constructed to inspect the performance of the rooftop and attic temperatures. The experimental work was carried out indoors by employing the halogen lamp as the replacement for solar irradiation, while the ambient temperature is monitored to be around 29.8 °C throughout the test. The temperatures of the rooftop surface, MAC aluminum tube, and attic region were measured by K-type thermocouples to evaluate the performance of the cool roof designs. The solar-powered fans were incorporated into the MAC, which accelerated the airflow rate within the cavity and rejected the hot air out before transferring it to the attic region. Meanwhile, an innovative rainwater harvesting system was executed to cool the rooftop temperature rapidly by reducing the rate of heat transfer to the attic region. The result of this inventive cool roof system (Design Z) has successfully reduced the attic temperature by 10.8 °C compared to the normal metal deck roof model (Design W). The findings of the project revealed that the integrated cool roofing technology system comprises the ability to enhance the comfortability of building occupants toward a long-term sustainable development for a better world.

ACS Style

Ming Chian Yew; Song Wei Wong; Lip Huat Saw. Rainwater Harvesting System Integrated With Sensors for Attic Temperature Reduction. Frontiers in Built Environment 2021, 7, 1 .

AMA Style

Ming Chian Yew, Song Wei Wong, Lip Huat Saw. Rainwater Harvesting System Integrated With Sensors for Attic Temperature Reduction. Frontiers in Built Environment. 2021; 7 ():1.

Chicago/Turabian Style

Ming Chian Yew; Song Wei Wong; Lip Huat Saw. 2021. "Rainwater Harvesting System Integrated With Sensors for Attic Temperature Reduction." Frontiers in Built Environment 7, no. : 1.

Journal article
Published: 16 April 2021 in Journal of Building Engineering
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The utilization of bio-based renewable lightweight aggregates with pre-treated coating methods, using a grout binder derivative of water/cement (w/c: 1.25), is a recent development meant to enhance the performance of high strength and lightweight concrete. It aims to promote the long-term sustainability in the field of concrete technology. In this experimental analysis, coated tenera shells (CTS) and coated dura shells (CDS) acted as a replacement for tenera shells (TS) and dura shells (DS), respectively. It has previously been investigated in terms of its physical strength and associated material properties, as a lightweight bio-based aggregate concrete (LWBAC). The results revealed that through the substitution of raw TS and DS aggregates with that of CTS and CDS, the density of the samples which fell within the range of high strength lightweight concrete (HSLWC), slightly increased. As a result, the workability of the oil palm shell concrete (OPSC) showed a significant improvement by almost 41% with the use of the pre-treated OPS aggregates, as compared to the non-treated OPSC. The strength of the HSLWCs with the CDS mixture achieved the highest compressive strength and modulus of elasticity at 28-days, which were recorded at 52 MPa and 17.1 GPa, respectively. The ultrasonic pulse velocity (UPV) was also assessed, and the outcome revealed that a good condition was attained after 7 days. Therefore, pre-treated CDS and CTS has proven to be a highly recommended, eco-friendly aggregate, which serves as an alternative solution to improve the properties of OPS aggregates, and substantially enhance the performance of the LWBAC.

ACS Style

Ming Kun Yew; Jing Han Beh; Lip Huat Saw; Siong Kang Lim. Effects of pre-treated on dura shell and tenera shell for high strength lightweight concrete. Journal of Building Engineering 2021, 42, 102493 .

AMA Style

Ming Kun Yew, Jing Han Beh, Lip Huat Saw, Siong Kang Lim. Effects of pre-treated on dura shell and tenera shell for high strength lightweight concrete. Journal of Building Engineering. 2021; 42 ():102493.

Chicago/Turabian Style

Ming Kun Yew; Jing Han Beh; Lip Huat Saw; Siong Kang Lim. 2021. "Effects of pre-treated on dura shell and tenera shell for high strength lightweight concrete." Journal of Building Engineering 42, no. : 102493.

Journal article
Published: 20 November 2020 in Coatings
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Recent developments of intumescent fire-protective coatings used in steel buildings are important to ensure the structural integrity and safe evacuation of occupants during fire accidents. Flame-retardant intumescent coating applied to structural steel could delay the spread of fire and heat propagation across spaces and structures in minimizing fire risks. This research focuses on formulating a green intumescent coating utilized the BioAsh, a by-product derived from natural rubberwood (hardwood) biomass combustion as the natural substitute of mineral fillers in the intumescent coating. Fire resistance, chemical, physical and mechanical properties of all samples were examined via Bunsen burner, thermogravimetric analysis (TGA), carbolite furnace, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared (FTIR), freeze–thaw cycle, static immersion and Instron pull-off adhesion test. Sample BioAsh intumescent coating (BAIC) 4-7 incorporated with 3.5 wt.% BioAsh exhibited the best performances in terms of fire resistance (112.5 °C for an hour under the Bunsen burner test), thermal stability (residual weight of 29.48 wt.% at 1000 °C in TGA test), adhesion strength (1.73 MPa under Instron pull-off adhesion test), water resistance (water absorption rate of 8.72%) and freeze–thaw durability (no crack, blister and color change) as compared to other samples. These results reveal that an appropriate amount of renewable BioAsh incorporated as natural mineral fillers into the intumescent coating could lead to better fire resistance and mechanical properties for the steel structures.

ACS Style

Jing Han Beh; Ming Yew; Lip Huat Saw; Ming Yew. Fire Resistance and Mechanical Properties of Intumescent Coating Using Novel BioAsh for Steel. Coatings 2020, 10, 1117 .

AMA Style

Jing Han Beh, Ming Yew, Lip Huat Saw, Ming Yew. Fire Resistance and Mechanical Properties of Intumescent Coating Using Novel BioAsh for Steel. Coatings. 2020; 10 (11):1117.

Chicago/Turabian Style

Jing Han Beh; Ming Yew; Lip Huat Saw; Ming Yew. 2020. "Fire Resistance and Mechanical Properties of Intumescent Coating Using Novel BioAsh for Steel." Coatings 10, no. 11: 1117.

Journal article
Published: 09 October 2020 in Crystals
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Conventional compressive strength test of concrete involves the destruction of concrete samples or existing structures. Thus, the focus of this research is to ascertain a more effective method to assess the compressive strength of concrete, especially during the hardening process. One of the prevalent non-destructive test (NDT) methods that involves the employment of elastic wave has been proposed to forecast the compressive strength development of air-entrained rubberized concrete. The change of the properties, such as wave amplitude, velocity and dominant frequency of the wave that propagates within the concrete is investigated. These wave parameters are then correlated with the compressive strength data, obtained using the conventional compressive strength test. It has been certified that both correlation between wave amplitude and concrete compressive strength, as well as the correlation between velocity and concrete compressive strength, have high regression degrees, which are 0.9404 and 0.8788, respectively. On the contrary, dominant wave frequency has been proved imprecise to be used to correlate with the concrete compressive strength development, as a low correlation coefficient of 0.2677 is reported. In a nutshell, the correlation data of wave amplitude and velocity could be used to forecast the compressive strength development of an air-entrained rubberized concrete in the future.

ACS Style

Zhi Heng Lim; Foo Wei Lee; Kim Hung Mo; Jee Hock Lim; Ming Kun Yew; Kok Zee Kwong. Compressive Strength Forecasting of Air-Entrained Rubberized Concrete during the Hardening Process Utilizing Elastic Wave Method. Crystals 2020, 10, 912 .

AMA Style

Zhi Heng Lim, Foo Wei Lee, Kim Hung Mo, Jee Hock Lim, Ming Kun Yew, Kok Zee Kwong. Compressive Strength Forecasting of Air-Entrained Rubberized Concrete during the Hardening Process Utilizing Elastic Wave Method. Crystals. 2020; 10 (10):912.

Chicago/Turabian Style

Zhi Heng Lim; Foo Wei Lee; Kim Hung Mo; Jee Hock Lim; Ming Kun Yew; Kok Zee Kwong. 2020. "Compressive Strength Forecasting of Air-Entrained Rubberized Concrete during the Hardening Process Utilizing Elastic Wave Method." Crystals 10, no. 10: 912.

Conference paper
Published: 11 June 2020 in IOP Conference Series: Earth and Environmental Science
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ACS Style

Hock Yong Tiong; Siong Kang Lim; Yee Ling Lee; Ming Kun Yew; Jee Hock Lim. Absorption and strength properties of lightweight foamed concrete with egg shell powder as partial replacement material of cement. IOP Conference Series: Earth and Environmental Science 2020, 476, 1 .

AMA Style

Hock Yong Tiong, Siong Kang Lim, Yee Ling Lee, Ming Kun Yew, Jee Hock Lim. Absorption and strength properties of lightweight foamed concrete with egg shell powder as partial replacement material of cement. IOP Conference Series: Earth and Environmental Science. 2020; 476 ():1.

Chicago/Turabian Style

Hock Yong Tiong; Siong Kang Lim; Yee Ling Lee; Ming Kun Yew; Jee Hock Lim. 2020. "Absorption and strength properties of lightweight foamed concrete with egg shell powder as partial replacement material of cement." IOP Conference Series: Earth and Environmental Science 476, no. : 1.

Journal article
Published: 08 February 2020 in Construction and Building Materials
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This paper is aimed to investigate the effects of eggshell powder (ESP), as partial replacement material of cement, on quality performance of lightweight foamed concrete (LFC) with density of 1300 kg/m3 in terms of initial surface absorption, sorptivity, water absorption, ultrasonic pulse velocity, and compressive strength; and meanwhile evaluate environmental impact of said replacement by performing life cycle analysis (LCA). Different eggshell powder lightweight foamed concrete were developed by replacing 0%, 2.5%, 5%, 7.5%, and 10% of cement with eggshell powder. A water to cement ratio of 0.58 was adopted to study the engineering properties of the eggshell powder lightweight foamed concrete for various ages of 7, 28 and 90 days. The laboratory results show that the incorporation of eggshell powder has decrease initial surface absorption, sorptivity, and water absorption of the lightweight foamed concrete. Besides, incorporation of eggshell powder has increase compressive strength and ultrasonic pulse velocity (UPV) of the lightweight foamed concrete as well, and the optimal replacement level is found at 7.5% based on compressive strength results. Moreover, the life cycle assessment result shows reductions of 6.6% to 9.9% in various environmental loads and impacts such as climate change, acidification, fossil fuel, eutrophication, photochemical oxidation, and ozone layer depletion.

ACS Style

Hock Yong Tiong; Siong Kang Lim; Yee Ling Lee; Chuan Fang Ong; Ming Kun Yew. Environmental impact and quality assessment of using eggshell powder incorporated in lightweight foamed concrete. Construction and Building Materials 2020, 244, 118341 .

AMA Style

Hock Yong Tiong, Siong Kang Lim, Yee Ling Lee, Chuan Fang Ong, Ming Kun Yew. Environmental impact and quality assessment of using eggshell powder incorporated in lightweight foamed concrete. Construction and Building Materials. 2020; 244 ():118341.

Chicago/Turabian Style

Hock Yong Tiong; Siong Kang Lim; Yee Ling Lee; Chuan Fang Ong; Ming Kun Yew. 2020. "Environmental impact and quality assessment of using eggshell powder incorporated in lightweight foamed concrete." Construction and Building Materials 244, no. : 118341.

Conference paper
Published: 14 January 2020 in MATEC Web of Conferences
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Intumescent flame-retardant binder (IFRB) offers a great advancement for the most efficient utilization of a wide variety of passive fire safety system at the recent development. This article highlights the fire-resistance and thermal properties of the IFRB using Bunsen burner and thermogravimetric analysis. The five IFRB formulations were mixed with vermiculite and perlite for the fabrication of fire-resistant timber door prototypes. Additionally, the fire rated door prototypes were compared under 2 hours fire test. The prototype (P2), with a low density of 637 kg/m3 showed the superlative fire-resistance rating performance, resulting in temperature reduction by up to 58.9 °C, as compared with that of prototype (P1). Significantly, an innovative fire rated timber door prototype with the addition of formulating intumescent binder has verified to be effective in stopping fires and maintaining its integrity by surviving a fire resistance period of 2 hours.

ACS Style

Jessica Jong Kwang Yin; Yew Ming Chian; Yew Ming Kun. Development of advanced intumescent flame-retardant binder for fire rated timber door. MATEC Web of Conferences 2020, 306, 02006 .

AMA Style

Jessica Jong Kwang Yin, Yew Ming Chian, Yew Ming Kun. Development of advanced intumescent flame-retardant binder for fire rated timber door. MATEC Web of Conferences. 2020; 306 ():02006.

Chicago/Turabian Style

Jessica Jong Kwang Yin; Yew Ming Chian; Yew Ming Kun. 2020. "Development of advanced intumescent flame-retardant binder for fire rated timber door." MATEC Web of Conferences 306, no. : 02006.

Journal article
Published: 06 November 2019 in Coatings
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Intumescent flame-retardant coating (IFRC) provides a protective barrier to heat and mass transfer for the most efficient utilization of a wide variety of passive fire protection systems at the recent development. This article highlights the fire-resistance, physical, chemical, mechanical, and thermal properties of the IFRC using a Bunsen burner, furnace, Scanning Electron Microscope, freeze-thaw stability test, Instron Micro Tester, and thermogravimetric analysis (TGA) test. The five IFRC formulations were mixed with vermiculite and perlite for the fabrication of fire-resistant timber door prototypes in this research project. Additionally, the best fire-resistance performance of the fire-rated door prototype was selected and compared with a commercial prototype under the fire endurance test. An inventive fire-rated door prototype (P2), with a low density of 636.45 kg/m3, showed an outstanding fire-resistance rating performance, resulting in temperature reduction by up to 54.9 °C, as compared with that of the commercial prototype. Significantly, a novel fire-rated timber door prototype with the addition of formulating intumescent coating has proven to be efficient in preventing fires and maintaining its integrity by surviving a fire resistance period of 2 h.

ACS Style

Jessica Jong Kwang Yin; Ming Chian Yew; Lip Huat Saw. Preparation of Intumescent Fire Protective Coating for Fire Rated Timber Door. Coatings 2019, 9, 738 .

AMA Style

Jessica Jong Kwang Yin, Ming Chian Yew, Lip Huat Saw. Preparation of Intumescent Fire Protective Coating for Fire Rated Timber Door. Coatings. 2019; 9 (11):738.

Chicago/Turabian Style

Jessica Jong Kwang Yin; Ming Chian Yew; Lip Huat Saw. 2019. "Preparation of Intumescent Fire Protective Coating for Fire Rated Timber Door." Coatings 9, no. 11: 738.

Original paper
Published: 05 September 2019 in Journal of Civil Structural Health Monitoring
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Delamination is one of the defects that cause concrete structures to fail in structural integrity. For this reason, the assessment of concrete delamination without affecting the serviceability and functionality of concrete structure is essential. Non-destructive tests (NDT) are developed and applied to serve this purpose without damaging the structure components. In this study, Rayleigh wave (R-wave) is proposed to determine the extent of delamination in concrete. Numerical simulations were carried out to examine the behaviour of R-waves propagated through the concrete medium with different concrete delamination conditions, i.e., top delamination and bottom delamination. The relationships between the changes of R-wave group velocity and peak frequency with the existence of delamination were established. The established data were then verified with experimental measurements. It is found that the R-wave group velocity is reduced in the presence of delamination. Furthermore, the group velocity of R-wave is relatively faster while propagating through the delamination layer which is closer to the testing surface. In addition, the peak frequency retrieved from R-wave power spectrum also reduced in the presence of delamination. Owing to these observed changes, the potential of utilising R-wave group velocity and peak frequency in the assessment of concrete delamination is high.

ACS Style

Chi Hoe Liew; Foo Wei Lee; Dick Si Tan; Jee Hock Lim; Ming Kun Yew; Yoke Bee Woon. Behavioural study of surface Rayleigh waves in concrete structure containing delamination. Journal of Civil Structural Health Monitoring 2019, 9, 555 -564.

AMA Style

Chi Hoe Liew, Foo Wei Lee, Dick Si Tan, Jee Hock Lim, Ming Kun Yew, Yoke Bee Woon. Behavioural study of surface Rayleigh waves in concrete structure containing delamination. Journal of Civil Structural Health Monitoring. 2019; 9 (4):555-564.

Chicago/Turabian Style

Chi Hoe Liew; Foo Wei Lee; Dick Si Tan; Jee Hock Lim; Ming Kun Yew; Yoke Bee Woon. 2019. "Behavioural study of surface Rayleigh waves in concrete structure containing delamination." Journal of Civil Structural Health Monitoring 9, no. 4: 555-564.

Journal article
Published: 31 July 2019 in Coatings
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This paper presents the heat release characteristics, char formation and fire protection performance of thin-film intumescent coatings that integrate eggshell (ES) as an innovative and renewable flame-retardant bio-filler. A cone calorimeter was used to determine the thermal behavior of the samples in the condensed phase in line with the ISO 5660-1 standard. The fire resistance of the coatings was evaluated using a Bunsen burner test to examine the equilibrium temperature and formation of the char layer. The fire propagation test was also conducted according to BS 476: Part 6. On exposure, the samples X, Y, and Z were qualified to be Class 0 materials due to the indexes of fire propagation being below 12. Samples Y and Z reinforced with 3.50 wt.% and 2.50 wt.% of ES bio-filler, respectively, showed a significant improvement in reducing the heat release rate, providing a more uniform and thicker char layer. As a result, the addition of bio-filler content has proven to be efficient in stopping the fire propagation as well as reducing the total heat released and equilibrium temperature of the intumescent coatings.

ACS Style

Jing Han Beh; Ming Chian Yew; Lip Huat Saw. Fire Protection Performance and Thermal Behavior of Thin Film Intumescent Coating. Coatings 2019, 9, 483 .

AMA Style

Jing Han Beh, Ming Chian Yew, Lip Huat Saw. Fire Protection Performance and Thermal Behavior of Thin Film Intumescent Coating. Coatings. 2019; 9 (8):483.

Chicago/Turabian Style

Jing Han Beh; Ming Chian Yew; Lip Huat Saw. 2019. "Fire Protection Performance and Thermal Behavior of Thin Film Intumescent Coating." Coatings 9, no. 8: 483.

Journal article
Published: 01 March 2019 in Materials Science Forum
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The present work analyzed the fire protection performances, char formation and heat release characteristics of the thin film intumescent fire protective coatings that incorporate the eggshell (ES) waste as a renewable flame retardant nano bio-based filler. The fire performances of the coatings were evaluated using Bunsen burner and cone calorimeter. The fire behaviors of the samples in the condensed phase were conducted in accordance with the ISO 5660-1 standard. On exposure, the samples B and D reinforced with 3.30 wt.% and 2.75 wt.% of ES nano bio-filler, respectively showed a significant reduction in total heat rate, promoting thicker and more uniform char layer in protecting the steel structural. As a result, ES nano bio-filler composition has shown to be efficient in fire protective performance of the intumescent coatings.

ACS Style

Ming Chian Yew; Lip Huat Saw; Jing Han Beh; Yeong Jin King; Rajkumar Durairaj. Effects of Flame Retardant Nano Bio-Based Filler on Fire Behaviors of Intumescent Coating. Materials Science Forum 2019, 947, 142 -147.

AMA Style

Ming Chian Yew, Lip Huat Saw, Jing Han Beh, Yeong Jin King, Rajkumar Durairaj. Effects of Flame Retardant Nano Bio-Based Filler on Fire Behaviors of Intumescent Coating. Materials Science Forum. 2019; 947 ():142-147.

Chicago/Turabian Style

Ming Chian Yew; Lip Huat Saw; Jing Han Beh; Yeong Jin King; Rajkumar Durairaj. 2019. "Effects of Flame Retardant Nano Bio-Based Filler on Fire Behaviors of Intumescent Coating." Materials Science Forum 947, no. : 142-147.

Journal article
Published: 01 February 2019 in Energy Procedia
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Electric vehicle (EV) has been steadily gaining attention and as a viable alternative to mitigate pressing global energy crisis and environmental issues caused by conventional internal combustion engine vehicles. Nonetheless, the dynamic operation of EV encompassing high charging and discharging currents generated from regenerative braking and acceleration, respectively, may adversely affect the cycle life of the conventional energy storage system. Hence, incorporation of supercapacitors into the energy storage system is recommended in view of its superior cycle efficiency and high power density, which aids in relieving the battery’s stress and thus extends its cycle life. In this study, a hybrid energy storage system (HESS) comprising Li-ion batteries and supercapacitors are modeled to evaluate its electrical and thermal performances under different driving cycles. The results obtained reveal that the dynamic stress, peak power demand and thermal performance of the battery have been significantly improved by incorporating supercapacitors into the battery pack in HESS. In comparison with the conventional battery energy storage system, the peak current demands of the battery in HESS for UDDS and US06 cycles have been reduced by 63%, 72.9% and 71.7%, respectively. This approach has shown to be effective in extending the battery’s lifespan and is able to improve the safety and reliability of the conventional battery energy storage system.

ACS Style

Lip Huat Saw; Hiew Mun Poon; Wen Tong Chong; Chin-Tsan Wang; Ming Chian Yew; Tan Ching Ng. Numerical modeling of hybrid supercapacitor battery energy storage system for electric vehicles. Energy Procedia 2019, 158, 2750 -2755.

AMA Style

Lip Huat Saw, Hiew Mun Poon, Wen Tong Chong, Chin-Tsan Wang, Ming Chian Yew, Tan Ching Ng. Numerical modeling of hybrid supercapacitor battery energy storage system for electric vehicles. Energy Procedia. 2019; 158 ():2750-2755.

Chicago/Turabian Style

Lip Huat Saw; Hiew Mun Poon; Wen Tong Chong; Chin-Tsan Wang; Ming Chian Yew; Tan Ching Ng. 2019. "Numerical modeling of hybrid supercapacitor battery energy storage system for electric vehicles." Energy Procedia 158, no. : 2750-2755.

Conference paper
Published: 26 November 2018 in E3S Web of Conferences
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Post-tensioning (PT) system is widely used not only in bridge construction, but also used as a replacement of reinforced concrete (RC) structure for slab, beam, and wall. Nowadays, many countries around the world are focusing on sustainable development in the construction industry. PT system is one of a system which able to meet the standard of sustainable building construction. Its advantages are able to save more materials, construction time and maintenance cost. To ensure the safety of PT systems during construction, some methods are implemented to evaluate the concrete condition. In this study, the Rayleigh wave (R-wave) method is used to evaluate the grouting condition of the post-tensioned concrete structure. Useful parameters of R-wave such as amplitude, time, frequency and wave velocity are identified and obtained through a series of numerical simulations and experimental tests. Different frequencies are excited to examine the behavior of R-wave propagated through a concrete medium with different grouting conditions in the simulation. In experimental testing, different diameters of steel balls are used as an impactor to generate waveform and the generated waveforms were recorded by the data logger. Three equidistance receivers are placed on top of the tested concrete specimen with different duct materials of aluminium duct and PVC duct embedded in it. As a conclusion, when voids are present in the concrete specimen, high readings of amplitude and dominant frequency are recorded and the travelling wave velocity is slow.

ACS Style

Kah Kian Cheong; Foo Wei Lee; Kah Hon Leong; Ming Kun Yew; Yee Ling Lee. Evaluation of Grouting Condition of Post-Tensioned Concrete using R-wave Method. E3S Web of Conferences 2018, 65, 02004 .

AMA Style

Kah Kian Cheong, Foo Wei Lee, Kah Hon Leong, Ming Kun Yew, Yee Ling Lee. Evaluation of Grouting Condition of Post-Tensioned Concrete using R-wave Method. E3S Web of Conferences. 2018; 65 ():02004.

Chicago/Turabian Style

Kah Kian Cheong; Foo Wei Lee; Kah Hon Leong; Ming Kun Yew; Yee Ling Lee. 2018. "Evaluation of Grouting Condition of Post-Tensioned Concrete using R-wave Method." E3S Web of Conferences 65, no. : 02004.

Conference paper
Published: 26 November 2018 in E3S Web of Conferences
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Oil Palm Shell (OPS) is the solid waste product from the palm oil sector of the agricultural industry. The substitution of coarse aggregate in concrete with OPS to produce lightweight concrete (LWC) had been researched since two decades ago. The author has discovered fluctuation on the performance of OPSLWC. One of the factors is the workability. As an initiative to enhance the performance of OPSLWC, the author proposes a new mixing method (NMM) modified from the mix design of self-compacting concrete (SCC). The effects of the NMM on the workability, uniformity, compressive strength and splitting tensile strength are investigated. The workability of the NMM is 25.5% higher than the conventional method (CM). The compressive strength shows an improvement of 5.76%; while the splitting tensile strength is increased by 22.35%. The new findings of this research have shown a positive impact on the concrete industry.

ACS Style

Leong Tatt Loh; Ming Chian Yew. A New Mixing Method for Lightweight Concrete with Oil Palm Shell as Coarse Aggregate. E3S Web of Conferences 2018, 65, 02012 .

AMA Style

Leong Tatt Loh, Ming Chian Yew. A New Mixing Method for Lightweight Concrete with Oil Palm Shell as Coarse Aggregate. E3S Web of Conferences. 2018; 65 ():02012.

Chicago/Turabian Style

Leong Tatt Loh; Ming Chian Yew. 2018. "A New Mixing Method for Lightweight Concrete with Oil Palm Shell as Coarse Aggregate." E3S Web of Conferences 65, no. : 02012.

Journal article
Published: 31 October 2018 in European Journal of Environmental and Civil Engineering
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ACS Style

Ming Kun Yew; Jing Han Beh; Lip Huat Saw; Foo Wei Lee; Tan Ching Ng. Influence of high-performance polypropylene fibre and heat-treated dura oil palm shell on durability properties of lightweight concrete. European Journal of Environmental and Civil Engineering 2018, 24, 1 -20.

AMA Style

Ming Kun Yew, Jing Han Beh, Lip Huat Saw, Foo Wei Lee, Tan Ching Ng. Influence of high-performance polypropylene fibre and heat-treated dura oil palm shell on durability properties of lightweight concrete. European Journal of Environmental and Civil Engineering. 2018; 24 (14):1-20.

Chicago/Turabian Style

Ming Kun Yew; Jing Han Beh; Lip Huat Saw; Foo Wei Lee; Tan Ching Ng. 2018. "Influence of high-performance polypropylene fibre and heat-treated dura oil palm shell on durability properties of lightweight concrete." European Journal of Environmental and Civil Engineering 24, no. 14: 1-20.

Journal article
Published: 07 August 2018 in Progress in Organic Coatings
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In the modern design of commercial buildings, the requirements for fire safety and evacuation must comply with to ensure the protection of human lives and property. The applications of flame-retardant materials in buildings play a vital role in reducing the risks of fire propagation. This study aims to synthesize an eco-friendly intumescent coating by incorporating the novel eggshell (ES) nano bio-filler. The samples were then characterized using Bunsen burner, thermogravimetric analysis (TGA), scanning electron microscope (SEM), Fourier transform infrared (FTIR) and pull-off adhesion tester. The coating D with an appropriate combination of the binder and flame-retardant ingredients had significantly improved the formation of char thickness in protecting the coated steel. This char layer showed a denser and more uniform foam structure surface in the SEM micrograph. Additionally, this formulation had exhibited the highest adhesion strength of 2.13 MPa, which indicated the effectiveness of interface attachment on the substrate. Moreover, the thermal stability of the formulation had also increased in thermal analysis. Therefore, the outcomes of the research revealed that uses of optimal quantity of nano bio-filler leading to better fire protective performance and mechanical properties of the intumescent coating.

ACS Style

Ming Chian Yew; Lip Huat Saw; Tan Ching Ng; Rajkumar Durairaj; Jing Han Beh. Influences of nano bio-filler on the fire-resistive and mechanical properties of water-based intumescent coatings. Progress in Organic Coatings 2018, 124, 33 -40.

AMA Style

Ming Chian Yew, Lip Huat Saw, Tan Ching Ng, Rajkumar Durairaj, Jing Han Beh. Influences of nano bio-filler on the fire-resistive and mechanical properties of water-based intumescent coatings. Progress in Organic Coatings. 2018; 124 ():33-40.

Chicago/Turabian Style

Ming Chian Yew; Lip Huat Saw; Tan Ching Ng; Rajkumar Durairaj; Jing Han Beh. 2018. "Influences of nano bio-filler on the fire-resistive and mechanical properties of water-based intumescent coatings." Progress in Organic Coatings 124, no. : 33-40.

Review article
Published: 07 August 2018 in Renewable and Sustainable Energy Reviews
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Fuel cells and solar energy are promising candidates for electricity generation. It is forecast that fuel cells and solar power systems will play an important role in reducing the greenhouse gas footprint and replacing fossil fuels. Therefore, the limitations of fuel cells and solar power systems, such as low efficiency, high cost, and low reliability, must be addressed appropriately to enable their full potentials. Metal foam is a new class of material that has gained immense attention due to its excellent properties suitable for a wide range of applications. Its unique characteristics distinguish it from typical solid metals. The properties of metal foam can be modified during the fabrication stage by manipulating its physical structure. The goal of this paper is to review the application of metal foam in fuel cells and solar power systems. Besides, the performance of metal foam in fuel cells and solar systems is also discussed. Metal foam has been applied to the electrodes, gas diffusion layer and flow field of fuel cells to enhance performance, especially in regard to current density and flow distribution. Furthermore, metal foam is a heat exchanger for the solar energy harvesting system to improve its efficiency. Superior performances in experimental testing allows the possibility of commercialization of metal foam products in the renewable energy field.

ACS Style

Weng Cheong Tan; Lip Huat Saw; Hui San Thiam; Jin Xuan; Zuansi Cai; Ming Chian Yew. Overview of porous media/metal foam application in fuel cells and solar power systems. Renewable and Sustainable Energy Reviews 2018, 96, 181 -197.

AMA Style

Weng Cheong Tan, Lip Huat Saw, Hui San Thiam, Jin Xuan, Zuansi Cai, Ming Chian Yew. Overview of porous media/metal foam application in fuel cells and solar power systems. Renewable and Sustainable Energy Reviews. 2018; 96 ():181-197.

Chicago/Turabian Style

Weng Cheong Tan; Lip Huat Saw; Hui San Thiam; Jin Xuan; Zuansi Cai; Ming Chian Yew. 2018. "Overview of porous media/metal foam application in fuel cells and solar power systems." Renewable and Sustainable Energy Reviews 96, no. : 181-197.