This paper presents the results of experimental investigations carried out on partial replacement of sand withudlaterite as it affects the compressive strength of sandcrete hollow blocks. Two mix proportions (1:6 and 1:8) wereudused with laterite content varying between 0 and 50% at 10% intervals. Hand and machine compactionudmethods were used. Curing was done by sprinkling water on the specimens. The results showed that for eachudmix proportion and compaction method, the compressive strength decreases with increase in laterite content.udMachine compacted hollow sandcrete blocks made from mix ratio 1:6 and with up to 10% laterite content isudfound suitable and hence recommended for building construction having attained a 28-day compressiveudstrength of 2.07N/mm2 as required by the Nigerian Standards.ud
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机译：本文介绍了用 udlaterite部分代替砂子的实验研究结果，因为它影响着砂土空心砌块的抗压强度。使用了两种混合比例（1：6和1：8），红土含量以10％的间隔在0％和50％之间变化。使用手动和机器压实 udmethod。通过在样品上洒水进行固化。结果表明，对于每种混合比和压实方法，抗压强度都随红土含量的增加而降低。 ud由混合比为1：6且红土含量最高为10％的机械压实空心砂浆砌块被认为是合适的，因此建议用于尼日利亚标准要求达到28天抗压强度 2.07N / mm2的建筑。 ud
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