Abdul Manaf, Izzati (2023) The influence of glass ceramic waste (GCW) on the physical, mechanical and thermal properties of foamed concrete (FC). Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

This study presents the influence of glass ceramic waste (GCW) as quartz sand filler on Foamed Concrete based Glass Ceramic Waste (FC-GCW). Sample preparation involved grinding GCW into particle size 0.6 ± 0.05 mm, and mixed proportions of 0, 5, 10, 15, 20, 25, and 30% with fixed percentages of cement, quartz sand, water and synthetic foaming agent, then poured into moulds and air cured for 7 and 28 days. X-ray diffraction (XRD) indicated the presence of amorphous phase in GCW. As GCW increased, density increased, while water absorption and porosity decreased. Scanning Electron Microscope (SEM) found that increasing GCW resulted in denser microstructure of FC-GCW, while Energy Dispersive X-ray (EDX) showed that increasing GCW increased silicon and aluminum but decreased oxygen and calcium. FC-GCW 20% highlights the highest compressive strength at 0.94 MPa and 2.01 MPa for 7 and 28 days curing respectively. At elevated temperature, FC-GCW 20% retained the highest residual compressive strength at 6.07 %. FC-GCW 20% shows the highest tensile splitting strength at 0.39 MPa and Young’s Modulus at 0.054 GPa. FC-GCW 20% achieved the lowest internal surface temperature at 27℃ even though the external surface temperature achieved 49 ℃ with the highest temperature difference of 29.1%. In conclusion, FC-GCW 20% is the optimum composition to achieve the highest value in compressive strength, tensile splitting strength, Young’s Modulus and temperature difference between external and internal surface temperature. Research on FC-GCW contributes to sustainable waste management, new alternative green construction materials, improving non-load bearing concrete properties, and provide the latest technological innovation in construction industry

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