Effect of water/cement ratio and delay in casting on the workability and compressive strength characteristics of laterized concrete
Joseph Adurapemi OLUSOLA, Kolapo Olubunmi OLUSOLA-ELEKA, Isaac Taiwo AFUYE, Adetomi Oluwabukunmi ABEGUNDE, Kazeem Dele MUSBAU
Abstract. This paper reports the result of investigations on the effect of water cement ratio and delay in casting on the workability and compressive strength characteristics of laterized concrete. Three mix ratios 1:1:2, 1:1.5:3, 1:2:4 and varying fine aggregate fraction replacements of sand with laterite amounting to 0%, 25%, 50%, 75% and 100% were investigated. Test result showed that the workability increases with increasing water cement ratio and decreases with increasing period of delay of casting. The compressive strength decreases with increasing water cement ratio. Delaying the casting for up to 40 minutes for 1:1:2 mix, 30 minutes for 1:1.5:3 mix and between 15 to 25 minutes for 1:2:4 mix resulted in beneficial effects amounting averagely to 20% gain in compressive strength with no appreciable loss in workability. The use of superplasticizers to improve workability and mechanical compaction to improve strength in laterized concreting processes is recommended.
Keywords
Compressive Strength, Workability, Water/Cement Ratio, Delay in Casting, Laterized Concrete
Published online 3/25/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Joseph Adurapemi OLUSOLA, Kolapo Olubunmi OLUSOLA-ELEKA, Isaac Taiwo AFUYE, Adetomi Oluwabukunmi ABEGUNDE, Kazeem Dele MUSBAU, Effect of water/cement ratio and delay in casting on the workability and compressive strength characteristics of laterized concrete, Materials Research Proceedings, Vol. 51, pp 138-145, 2025
DOI: https://doi.org/10.21741/9781644903537-16
The article was published as article 16 of the book Advances in Cement and Concrete
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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