Paper Details

The effect of Barium(Ba) present in mixing water for high performance cement mortar was experimentallyevaluated. The properties investigated are setting times, soundness, compressive strength, and durability aspects like acidattack, alkaline attack, sulphate attack and chloride ion penetration. High performance cement mortar(HPCM) specimenswere cast using deionised water and Barium(Ba) spiked deionized water for reference and the test specimens as mixingwaters respectively. It is observed that on comparison with reference specimens, the initial and final setting of cement withtest specimens got accelerated with increase of Barium concentration in deionised water. The increase in the initial settingtime is insignificant at all concentrations of Barium whereas the increase in the final setting times are significant at 4000mg/L and 5000mg/L concentrations of Barium. The change in expansion of cement mortar is insignificant at allconcentrations of the Barium. The increase in compressive strength is almost constant up to concentration of 2000 mg/L andbeyond that it decreases. The percent change in compressive strength is insignificant at all concentrations of Barium exceptfor 5000 mg/L concentration at 28 days. The compressive strength and weight of the specimen mortar cubes immersed inacid, alkaline and sulphate solutions decreases with age. The chloride ion permeability is low.

Madhusudana Reddy.B, Ravi Sanker Reddy.B, “Effect of Barium on High Performance Cement Mortar”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 7, Issue 6, pp. 105-115, June 2020.