Influence of Nickel in water on properties of Ordinary Portland Cement Concrete

Abstract

The study is aimed at investigating the effect of presence of Nickel in water on setting times and compressive strength of cement concrete. In the present study, the effect of Nickel (Ni) on setting time and compressive strength of cement is assessed under laboratory conditions. The research programme included tests of setting times and Mechanical strengths up to 28 days. In this research, the cement concrete cubes were cast with deionised water and deionised water containing the Nickel ions at various concentrations. The concentrations of Nickel (Ni) tested for different samples are 10, 50, 100, 500, 1000, 2000, 3000, 4000 and 5000 mg/L. The experimental results show that the presence of Nickel in deionised water accelerate both initial and final setting times up to 2000 mg/L. Nickel in deionised water up to 2000 mg/L there is a nominal change in compressive strength at early age (3-day). Beyond 2000 mg/L there is a significant change in the compressive strength at early ages as well as 28-day. Comparison of the Nickel with those of control mix levels reveal that the presence of Nickel increases the compressive strength. The rate of increase in compressive strength is with increase in concentration of Nickel.