Concrete is a mixture of Portland cement or other hydraulic cement,fine aggregate, coarse aggregate and water, with or without additives that form a solid mass. Based on SNI 03-2847-2002, lightweight concrete is concrete containing light aggregate and has a unit weight of no more than 900 kg/m³. Coffee husk ash is produced from burning in a closed furnace at 600Ëš for 3 hours. This res…
The need for lightweight concrete in various applications of modern construction technology is increasing very rapidly along with material development. This is because the lightweight concrete has advantages such as the smaller weight of the concrete so that it can reduce the weight of its own structural elements. Lightweight concrete can be produced using light aggregates such as pumice. Pumic…