Development on building materials for saving energy and reducing the heat transferred into buildings by using agricultural residue

Abstract

The objective of this research is to study the implementing the agricultural residue to the design of outdoor paving block for lowering the building temperature. The base layer admixture (layer no.1) is selected from cement type1: quarry dust: rice husk: rice straw: water ratios equal to 1: 3: 0: 0: 0.3, 1: 1: 0: 1: 0.5, 1: 1. 0.25: 0.75: 0.5, 1: 1: 0.5: 0.5: 0.5, 1: 1: 0.75: 0.25: 0.5, and 1: 1: 1: 0: 0.5 by weight. The surface layer admixture (layer no.2) is white silica cement: yellow stone chip no.4: water equals to 1: 4: 0.3 by weight. The exterior floor-covering blocks were tested following density testing, water absorption testing, compressive testing, and surface temperature testing compare with laterite, sandstone, paving concrete block, marble, and granite. Resulting, the best ratio of cement type1: quarry dust: rice husk: rice straw: water is 1: 1: 0.75: 0.25: 0.5 that has properties at 28 days following 1,939.43 kg/m of density, 14.97 % of water absorption, 284.69 ksc of compressive strength, and lower than other paving blocks around 3 – 13 degrees Celsius of surface temperature