Umudike Journal of Engineering and Technology

Michael Okpara University of Agriculture, Umudike


EFFECT OF MIX RATIO, CURING TIME AND CALCINATION TEMPERATURE ON ABRASION RESISTANCE AND WATER ABSORPTION OF CEMENT-PERIWINKLE SHELL ASH LATERIZED CONCRETE
Offiong, U. D.
Department of Agricultural Engineering, Akwa Ibom State University, Nigeria



ABSTRACT

This study investigates the performance of periwinkle shell ash in resisting the effect of abrasion and water absorption in laterized concrete. PSA was calcined at three temperature levels (600, 800 and 1000°C) and two mix proportion (1:1:2 and1:2:4) with four levels of percentage replacement of PSA with cement (0, 10, 20, 30, 40%) were used. The specimen was subjected to two curing periods (28 and 56 days). It was observed that mix proportions significantly affect the abrasion resistance while an increase in abrasion resistance was observed with specimen cured for 56 days over those at 28 days whereas specimen with calcined periwinkle shell ash produced high resistance to abrasion over the control specimen. The rate of water absorption decreases as calcined PSA level increases whereas no significant different was observed in the curing period while for mix proportion, 1:1:2 produces a high resistance rate to water absorption than 1:2:4 across all level of calcined PSA replacement level, and curing ages with the control experiment absorbing more water than all level of replacement.


Keywords: Abrasion, water absorption, periwinkle shell ash, cement, concrete


https://doi.org/10.33922/j.ujet_v8i1_2
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Published
Wednesday, June 08, 2022
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Vol. 8 No. 1, June 2022
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