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- W2182117209 abstract "The most aggressive environmental agents that affect the durability of concrete structures are chlorides and sulphates. Admixtures and the water have an important role on application of concrete. The study is aimed at investigating the effect of slightly acidic substances as mixing water on setting times, soundness and compressive strength of admixture cements. This paper therefore presents the result and findings of an experimental research on the influence of slightly acidic substances (CaCl2, MgCl2 and MgSO4) on setting and strength development of admixture cements. In the research PPC plus 10% silica fume was added by weight and cubes were casted with deionised water and deionised water containing slightly acidic substances (CaCl2, MgCl2 and MgSO4). The results shows MgCl2 in deionised water accelerate the initial as well as final setting processes whereas CaCl2 and MgSO4 retard the initial and final setting at all concentrations. CaCl2 and MgSO4 in deionised water increase the compressive strength of mortar cubes significantly in the early days i.e., at 3-day age. In the case of MgSO4 an increase in the compressive strength falls as age prolongs significant decrease in strength has occurred at longer periods like 180-day, 1-year and 2-year with MgSO4. In the present work analysis the hydration characteristics of the admixture cements using the techniques of X-ray diffraction analysis and useful conclusions are obtained regarding the influence of slightly acidic substances." @default.
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- W2182117209 date "2012-01-01" @default.
- W2182117209 modified "2023-09-26" @default.
- W2182117209 title "Effect of Slightly Acidic Substances in Water on Properties of Natural Admixture Cements" @default.
- W2182117209 hasPublicationYear "2012" @default.
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