Development of precast adobe wall panel with high corrosion resistance and good thermal insulation for energy and environmental conservation building

Abstract

The objective of this research is to develop the precast adobe wall panel with high corrosion resistance and good thermal insulation. The ratio of Portland cement type1, clay, rice husk ash, straw, rice husk, waterproofed liquid, and tap water was mixed and casted as same as the common concrete, and reinforced by bamboo. From the results, the proper prototype ratio of precast adobe wall panel was Portland cement type1: clay: rice husk ash: straw: rice husk: waterproofed liquid: tap water which equal to 1: 3: 0.3: 0.02: 0.02: 0.02: 0.4 by weight. The properties of the precast adobe wall panel prototype included density 1,797 kg/m3, water absorption 16.70%, bending strength 2.61 MPa, compressive strength 21.40 MPa, thermal conductivity coefficient 0.314 watt/m.Kelvin. Moreover, the precast adobe wall panel prototype also was verified by TIS.2226-2548 with properties of impact resistance, deflection, and hardness in medium duty (MD) level. These straw and rice husk effected the precast adobe wall panel to decrease the density, bending strength, thermal conductivity coefficient, and increase the compressive strength and water absorption.