This study investigated the hydric and durability performances of compressed earth blocks (CEBs) stabilized with calcium carbide residue (CCR) and rice husk ash (RHA). Dry mixtures were prepared using kaolinite-rich earthen material and 0 to 25 % CCR or 20:0 to 12:8 % CCR:RHA of the weight of earth. Moistened mixtures were manually compressed to produce CEBs (295x140x95 mm). Stabilized CEBs were cured at 30±5 °C, wrapped in plastic bags for 45 days. The cured CEBs were dried and tested for water absorption and other indicators of durability. Unstabilized CEBs immediately degraded in water. The stabilized CEBs were stable in water, with very low coefficient of capillary absorption (<20 g/cm².min 1/2 ) and excellent durability indicators. They resisted erosion at standard water pressure (50 kPa) and at a pressure of 500 kPa. The coefficient of surface abrasion improved far higher than 7 cm²/g recommended for the construction of facing masonry. It also increased after wetting-drying 2 cycles and correlated with the evolution of compressive strength. This correlation can be used as the non-destructive test of stabilized CEBs.
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