Abstract:
This research has the objective to develop interlocking block with waste stone dusts and para rubber wood fly ash. This research used the solder material ratio: gross which equals to 1:7 by the weight. The cement displacement ratio with waste stone dusts and para rubber wood fly ash was at the percentage of 0, 25, 50 and 75 by the weight. The water to material ratio was equal to 12% by the weight. The qualities of interlocking blocks were investigated after curing for 7, 14 and 28 days by comparing with the standard of community products of interlocking block (TCPS 602/2547) non-load-bearing type. The results showed that the compressive strength and the density of interlocking block tended to decrease with increasing the waste stone dusts and para rubber wood fly ash. The water absorption value of interlocking block tended to increase with increasing quantity of replacement materials. The best ratio of interlocking block replacing the cement waste stone dust was at 25% by the time that the density, water absorption, and compressive resistance were 1825 kgs per cubic meters, 250 kgs per cubic meters, and 3.47 megapascal, respectively. The best ratio of interlocking bricks replacing the cement with waste stone dusts and para rubber wood fly ash was at 25% considered at the age of 28 days by the time that the density, water absorption, and compressive resistance were 1,836 kgs per cubic meters, 256 kgs per cubic meters, and 3.28 megapascal, respectively.