Mechanical Properties of Geopolymer Paste Containing Fly Ash Waste From Indramayu Coal Power Plant

Desi Putri, Rr. Mekar Ageng Kinasti, Sriyono D Siswoyo

Abstract


Cement production is one of the largest contributors of carbon dioxide gas in the world. One way to reduce the use of cement is to replace it with materials that are similar in nature, one of which is fly ash produced by coal power plants. For this reason, it is necessary to study the characteristics and utilization of fly ash waste to determine the potential use of fly ash. The research method was carried out experimentally at the laboratory of PLN Institute of Technology in Jakarta. At the characterization stage, several tests was carried out to determine physical, chemical properties of materials and pasta compressive strength for various combination of fly ash a substitute for cement by 0%, 25%, 50%, 75% and 100% (geopolymer). the results of the compressive strength age 28 days of pasta were 33,93 MPa; 36,16 MPa; 24,27 MPa; 9,67 MPa and 60,87 MPa respectively. Conclusion fly ash can substitute cement.

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References


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