Strength Properties of Commercially Produced Sandcrete block in Ikeja: Lagos State
Abstract
The purpose of this study is to verify whether purchased commercially produced sandcrete blocks contribute to collapsing of buildings in Lagos State. 20 sandcrete block industries were visited in Ikeja, in which six was randomly selected for the study. Eighteen Sandcrete Blocks were randomly selected and purchased, three blocks from each Block Industry including the soil samples and transported to the Department of Civil and Environmental Engineering Geotechnical Laboratory FUTA where the following Tests were performed: Sieve, Silt Clay, and Organic Content Analysis. The Compressive Strength Tests (CST) was conducted at Materials Testing Laboratory “the Ministry of Works†Ondo State. The results showed that the soil aggregates used for the production of all the 18 blocks purchased were found suitable. However, the compressive strength for all the blocks was found (0.34 N/mm2 and 0.377 N/mm2) to be below the requirement (2.5 N/mm2) of Nigerian Industrial Standard (NIS) 87:2000. This indicates that commercially produced sandcrete blocks may have contributed to the problem of building collapsing in Lagos State.
Keywords: Sandcrete blocks, compressive strength, sieve analysis, silt clay, Organic content.
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