PEMANFAATAN CANGKANG KEONG SAWAH SEBAGAI SUBSTITUSI SEBAHAGIAN SEMEN DAN AGREGAT HALUS TERHADAP KUAT TEKAN BETON

Munirul Hady, Bunyamin Bunyamin, Darwin Darwin, Aulia Rahman, Andrisman Satria

Abstract


Abstract

Concrete is one of the choices as a structural material for construction in the construction sector, in this case, a concrete mixture is an object that is often used as research to obtain efficient construction methods and develop concrete constituent materials. The utilization of waste as a substitute for portland cement or additives is not a new thing. This research is expected to reduce rice snail waste that pollutes the environment and compare the compressive strength of normal concrete with concrete that uses rice snails as a partial substitute for cement and fine aggregate. This study refers to the ACI 211.1-91 and ASTM C-33/C33-08 methods. The rice snail waste was first crushed and filtered through a sieve that passed the ASTM No. 200 filter as a partial substitution of cement with substitution percentages of 0%, 5%, 10%, and 15% in the concrete mixture. The test object used is a cylinder with dimensions of 15 cm x 30 cm, totaling 40 specimens with a planned concrete quality of 17 MPa by the minimum requirements for structural concrete in SNI 2847-2019. Each percentage of 5 samples and testing will be carried out until the concrete is 28 days old in an immersion bath. The results show that the compressive strength using 0% snail shell variations was 17.35 MPa and 5%, 10%, and 15% variations were 15.74 MPa, 10.60 MPa, and 7.63 MPa. As well as the ratio of the density of the volume of concrete with mixed variations of 0%, 5%, 10% and 15%, namely 2344.4 kg/cm3, 2277.2 kg/cm3, 2170.4 kg/cm3 and 2103.7 kg/cm3.

 

Keywords—Compressive Strength of Concrete, Rice Snail Waste, Substitution

 


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DOI: https://doi.org/10.35308/jts-utu.v8i1.5198

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