2013•Applied Mechanics and MaterialsOpen access

Influence of Calcium Added Slag on the Strength and Water-Repellency of Magnesium Oxychloride Cement

Jin Yu, Xiao Li, Feng Luo

Abstract

The influence of dosage of calcium added slag on the strength and water-repellency of Magnesium oxychloride cement was studied in this paper. The results indicated that the compressive strength of magnesium oxychloride cement enhanced while the flexural strength remained unchanged when the dosage of calcium added slag between 5%-30%. The compressive strength of magnesium oxychloride cement was 110.0 MPa when the dosage of Calcium added slag was 20%, which increased the strength of 17%. The calcium added slag significantly improved the water-repellency of Magnesium oxychloride cement. The softening coefficient of magnesium oxychloride cement was more than 0.82, and the highest is 1.07.

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Key concepts: Cement, Magnesium, Compressive strength, Flexural strength, Materials science, Calcium, Slag (welding), Metallurgy