Porous Concrete using White Cement as Binding Agent

Abstract

Porous concrete is made by mixing Portland cement, coarse aggregate, with or without fine aggregate, additives, and water. Concrete that uses white or colored cement creates a highly contrasting visual and enhances traffic safety. A study was carried out on porous concrete using white cement as a binding agent. There are 6 types of gravel/cement ratio by mass used, namely 4, 4.5, 5, 5.5, 6, and 6.5. There are 2 types of water/cement ratios used, namely 0.27 and 0.30. SicaCim concrete additives are used as chemical admixtures. The total test specimens were 36 pieces, and 3 pieces for each variation. The results show that increasing gravel / white cement ratio decreases compressive strength and increases porosity. Compressive strength of wcr 0.27 is smaller than wcr 0.30. Porosity of porous concrete in general with a wcr of 0.27 is greater than a wcr of 0.30. The effect of water cement ratio (wcr) and aggregate / white cement ratio is not too significant on the unit weight of porous concrete.