Performance of high Strength Concrete Using Oyster Shell Ash as Partial Replacement for Cement

International Journal of Civil Engineering

© 2019 by SSRG - IJCE Journal

Volume 6 Issue 6

Year of Publication : 2019

Authors : Ephraim M. E , ThankGod. O, Gbinu. K.S

10.14445/23488352/IJCE-V6I6P107

How to Cite?

Ephraim M. E , ThankGod. O, Gbinu. K.S, "Performance of high Strength Concrete Using Oyster Shell Ash as Partial Replacement for Cement," SSRG International Journal of Civil Engineering, vol. 6,  no. 6, pp. 33-38, 2019. Crossref, https://doi.org/10.14445/23488352/IJCE-V6I6P107

Abstract:

In this study, the possibility of using oyster shell ash (OSA) to partially replace cement in the design of High strength concrete (HSC) was investigated. Six mix ratios were used to investigate strength at replacement level of 7.5, 10, and 15 percent of cement at W/B ratios of 0.22, 0.25, and 0.27; Results showed that there was an increase in strength in all mixes as the days of wet curing increased but decreased as the percentage of Oyster shell ash increased with the least strength of 54MPa at 28 days for 0.27 water- binder ratio with 15% replacement level. The value of 72.2MPa was attained at 7.5% replacement at 0.22 water-binder ratio of mix MA1, while the 0% (control concrete) recorded 74.22MPa at 28 days of wet curing

Keywords:

High Strength Concrete, Oyster Shell Ash,

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