Pengaruh Penggunaan Bahan Admixture “XY” Pada Beton dengan Menggunakan Pasir Mutu Rendah

Abstract

Concrete is a material used for buildings construction such as buildings tower, bridges, etc Concrete consists of a mixture of fine aggregate, coarse aggregate and water. The price of material is increasingly expensive because the material limitations are not comparable to needs. This study uses data collection techniques with interviews, documentation, literature studies and direct observation and sampling at the site. The research of type of sand, sludge content testing and compressive strength testing were carried out in the SOEGIJAPRANATA Faculty of Engineering Faculty of Engineering's Civil Engineering Study Program laboratory. The purpose of this study was to determine the compressive strength of concrete with low quality sand plus admixture "XY", knowing the exact dosage of "XY" admixture material so that the concrete with low quality sand had the same or more compressive strength for concrete using good quality sand. The conclusion of this study is that low quality sand concrete added with admixture "XY" produces a compressive strength of 10% greater than the compressive strength of concrete with good quality sand without using admixture "XY". However, the use of the "XY" admixture material is not recommended or depends on consumers who want to use because the price is not economical. Therefore it is necessary to conduct further research using other admixture materials to increase the compressive strength of the concrete with this low quality sand.