The High Teperature Influence on Geopolymer Fly Ash Mixture's Compressisive Strength with Insudtrial Waste Material Substitution

International Conference of Applied Science and Technology for Infrastructure Engineering

土木建筑工程;材料科学

Bayuaji, R.^1 ; Wibowo, B.^1 ; Subekti, S.^1 ; Santoso, S.E.^1 ; Hardiyanto, E.^1 ; Kaelani, Y.^1 ; Mallu, L.L.^2

Department of Civil Infrastructure Engineering, Institut Teknologi Sepuluh Nopember, Indonesia^1

Faculty of Civil Engineering and Planning, Institut Teknologi Adhi Tama Surabaya, Malaysia^2

关键词: Experimental research;    Fly ash mixtures;    Geopolymer;    Geopolymer concrete;    High temperature;    Main structure;    Material substitutions;    Mixture compositions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/267/1/012015/pdf
DOI  :  10.1088/1757-899X/267/1/012015

来源: IOP

【 摘 要 】

This research aimed to figure out the influence of fly ash mixture from the industrial waste at the temperatures of 150°C, 450°C, 750°C viewed from the strength and resistance of geopolymer paste. As a result, cement will be substituted by industrial waste like fly ash. This experimental research was conducted on the mix design of geopolymer concrete which was made by dimension with 2.5 cm in diameter and 5 cm in height from four mixture composition of fly ash and industrial waste i.e. 100% fly ash, 50% fly ash+50% bottom ash, 50% fly ash+50% sandblast, and 50% fly ash+50% carbide waste. Each mixture was tested in terms of porosity and compressive strength. In conclusion, in the mixture of 50% fly ash+50% Sandblast and 50% fly ash+50% bottom ash in 12 molars, 1.5 activator comparison can be used to substitute fly ash at high temperature. Meanwhile, the mixture of 50% fly ash+50% carbide waste in 8 molars, 0.5 activator comparison has very small strength remaining if it is compared to the mixture of fly ash and other industrial waste (Bottom ash and Sandblast). The performance of mixture paste of 50% fly ash+50% carbide waste was very vulnerable after being burnt. Consequently, it cannot be used as the main structure at high temperature.