Strength and Drying Shrinkage of Alkali-Activated Slag Paste and Mortar

Advances in Civil Engineering - Tập 2012 - Trang 1-7 - 2012
Maochieh Chi1, Jiang‐Jhy Chang2, Ran Huang2
1Department of Fire Science, WuFeng University, Chiayi County 62153, Taiwan, China
2Department of Harbour and River Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan, China

Tóm tắt

The aim of this study is to investigate the strengths and drying shrinkage of alkali-activated slag paste and mortar. Compressive strength, tensile strength, and drying shrinkage of alkali-activated slag paste and mortar were measured with various liquid/slag ratios, sand/slag ratios, curing ages, and curing temperatures. Experimental results show that the higher compressive strength and tensile strength have been observed in the higher curing temperature. At the age of 56 days, AAS mortars show higher compressive strength than Portland cement mortars and AAS mortars with liquid/slag ratio of 0.54 have the highest tensile strength in all AAS mortars. In addition, AAS pastes of the drying shrinkage are higher than AAS mortars. Meanwhile, higher drying shrinkage was observed in AAS mortars than that observed comparable Portland cement mortars.

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Advances in Civil Engineering

Tập 2012

1-7

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