Effect of Density on The Properties of Interlocking Blocks
Keywords:
interlocking block, density, compressive strengthAbstract
This research studied effects of density of the interlocking blocks on the compressive strength and the water absorption. The cement to laterite ratio of the blocks were 1:6 and 1:8. The mixtures were pressed into different densities: 1800 1900 2000 2100 and 2200 kg/m3. The compressive strength at 7, 14 and 28 days of age and the water absorption at 28 days were tested. The results indicated that the compressive strength of the interlocking block improves with age. When the densities increased from 1800 to 2100 kg/m3, the compressive strength increased. But when the density increases from 2100 to 2200 kg/m3, the compressive strength decreased. The water absorption decreased with increasing the densities. When comparing between cement to laterite ratios of 1:6 and 1:8, it was found that the ratio of 1:6 had higher compressive strength than the ratio of 1:8, while the water absorption of the 1:6 ratio was lower than that of the 1:8 ratio. All ratios and all densities of the interlocking blocks had the compressive strength at 28 days and the water absorption at 28 days passed the standard of TCPS.602-2547 of load-bearing interlocking blocks.
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