PENGARUH PENAMBAHAN ABU JERAMI PADI TERHADAP KUAT TEKAN BETON

Abstract

Concrete is a very important material in the construction sector This research was conducted to determine the optimum compressive strength value achieved from a mixture of rice straw ash in various variations of concrete mixtures In this study tests were carried out for 16 MPa and 20 MPa concrete mixtures with variations in the addition of 3 6 and 9 rice straw ash Which is taken from the weight of cement From the results of variations in the addition of rice straw ash the optimum compressive strength value for the 16 MPa mixture with the RSA 6 variation was 18 31 MPa and for the 20 MPa mixture the value for the RSA 6 variation was 22 57 MPa For the mixed compressive strength values of 16 MPa variations of 0 3 6 9 are 19 79 MPa 17 76 MPa 18 31 MPa and 17 20 MPa respectively And for the compressive strength value of a 20 MPa mixture variations of 0 3 6 9 are 23 31 MPa 21 64 MPa 22 57 MPa and 21 09 respectively So it can be concluded that the optimum mixture for adding rice straw ash is obtained at an addition of 6 < p>