TAIWO, S. AJIBOSE and OLAMOJU, ADEJARE M. (2019) EFFECT OF RIVER SAND AND LAND EXCAVATED SAND ON THE COMPRESSIVE STRENGTH OF HOLLOW SANDCRETE BLOCK. In: 4thNational Conference Of the School of Engineering, NOVEMBER, 2019, International Conference Centre, The Federal Polytechnic, Ilaro, Ogun State, Nigeria..

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ADEJARE New Effect of river sand and locally excavated sand on compressive strength-1.pdf

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The high demand for sandcrete hollow block for the development of physical infrastructures in Nigeria makes it relevant in building and construction industry.Therefore, as a result of the overdependence on river sand for construction activities, there is a need to source for another readily available material with comparable strength when used for various purposes (such as sandcrete hollow blocks). This research evaluate the Comparion of river sand and land excavated sand on the compressive strength of hollow sandcrete block in Yewa south ilaro to meet the minimum strength (1.8N/mm2) required by Nigeria Industrial Standard approved by Standard Organization of Nigeria (SON). A mixture of sand and cement in a circa 1:6 were used to produce 450mm x 225mm x 150mm block using manual method of production, the materials (sand and cement) were thoroughly mixed until a homogenous mix with uniform colour is obtained, same mixing ration were used for the two samples. Curing was done by spraying water in the morning and in the night for 28days and the compressive strength of the block was determined on the 7th, 14th, 21st, and 28th days respectively. The study reveals that the land excavated sand is finer than the river sand which makes it to be more compacted with minimal voids. The strength obtained at 28days showed that the land excavated sand has strength of 1.93N/mm2 which is greater than that of river sand 1.44N/mm2

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TD Environmental technology. Sanitary engineering
T Technology > TH Building construction
Divisions: Faculty of Engineering, Science and Mathematics > School of Geography
Depositing User: Mr Daniel Kumoye
Date Deposited: 28 Jun 2020 19:20
Last Modified: 28 Jun 2020 19:20
URI: http://eprints.federalpolyilaro.edu.ng/id/eprint/645

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