Authors : O.O. Akinkurolere , Cangru Jiang and O.M. Shobola
Abstract: This syudy is aimed at investigating the effect of sea water as mixing or curing water on concrete compressive strength. This paper therefore presents the result and findings of an experimental research on the influence of salt water from Lagos lagoon, in Nigeria on concrete compressive strength. In the research, concrete cubes were cast with fresh and salt water using a 150x150x150 mm mould and a mix ratio of 1:2:4 by weight of concrete 0.6 water-cement ratio were used. A total of 132 concrete cubes were made. Half of the cubes were made using fresh water and remaining half were made using salt water. They were cured in fresh and seawater respectively. The concrete cubes were tested for compressive strength at 7, 14, 21and 28 days. The compressive strength of concrete is shown to be increased by the presence of salt or ocean salt in the mixing and curing water. The rate of strength gain is also affected when the concrete is cast with fresh water and cured with salt water and vice-visa. Mixing concrete with salt water and curing with salt-water increases the compressive strength rapidly and the strength was still increasing at 28 days.
O.O. Akinkurolere , Cangru Jiang and O.M. Shobola , 2007. The Influence of Salt Water on the Compressive Strength of Concrete. Journal of Engineering and Applied Sciences, 2: 412-415.