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 high corrosion resistance and good thermal insulation precast adobe wall panels mixed with natural latex. The 6 ratios of Portland cement type1: clay: rice husk ash: straw: rice husk:waterproofed liquid: natural latex: tap water were designed including: 1: 3: 0.3:0.02: 0.02: 0.02: 0: 0.4, 1: 3: 0.3: 0.02: 0.02: 0.02: 0.05: 0.4, 1: 3: 0.3: 0.02: 0.02: 0.02:0.1: 0.4, 1: 3: 0.3: 0.02: 0.02: 0.02: 0.15: 0.4, 1: 3: 0.3: 0.02: 0.02: 0.02: 0.2: 0.4, and 1:3: 0.3: 0.02: 0.02: 0.02: 0.25: 0.4 by weight. The precast adobe wall panels castedas same as the common concrete and reinforced by the bamboo. From the results,the proper ratio of precast adobe wall panel mixed with natural latex was 1: 3: 0.3:0.02: 0.02: 0.02: 0.1: 0.4 ratio. The properties of the proper precast adobe wall panelincluded density 1,810.83 kg/m3, water absorption 17.16 %, compressive strength 15.13MPa, bending strength 3.01 MPa, thermal conductivity coefficient 0.234 watt/m.Kelvin. Moreover, the proper precast adobe wall panel mixed with natural latex also was verified by TIS.2226-2548 with properties of impact resistance, deflection, and hardness in medium duty (MD) level. The proper amount of natural latex effected the precast adobe wall panels to improve the mechanical properties including: increase the compressive and tensile strength, decrease the density, thermal conductivity coefficient and water absorption.