Analisa Kuat Tarik Belah pada Beton Mutu Tinggi dengan Bottom Ash sebagai Pengganti Agregat Halus pada Berbagai Umur Perendaman

Abstract

This study aims to evaluate the splitting tensile strength analysis of high-quality concrete with bottom ash as a substitute for sand on the splitting tensile strength of high-quality concrete at various immersion ages. Bottom ash is waste from the coal combustion process, and is expected to be used as a substitute material in concrete mixtures. The use of bottom ash in Indonesia as a construction material is not optimal. One of the uses of bottom ash as a material to add fine aggregate to concrete. The method used in this study is experimental with test objects made in the form of cylinders with a diameter of 150 mm and a height of 300 mm with variations of Bottom Ash 10%, 20%, 30%, 40%, and 50% and with variations of time 3, 7, 14, and 28 days. The results showed that the optimum splitting tensile strength variation occurred at a variation of 10% bottom ash with a compressive strength of 5.26 MPa with a soaking time of 28 days. The splitting tensile strength decreased as the variation was increased.