scholarly journals The role of calcium stearate on regulating activation to form stable, uniform and flawless reaction products in alkali-activated slag cement

2019 ◽  
Vol 103 ◽  
pp. 242-251 ◽  
Author(s):  
Qing Li ◽  
Yong Yang ◽  
Kai Yang ◽  
Zhuo Chao ◽  
Desha Tang ◽  
...  
Keyword(s):  
Calcium Stearate ◽  
Reaction Products ◽  
Slag Cement ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

scholarly journals Understanding the Role of Metakaolin towards Mitigating the Shrinkage Behavior of Alkali-Activated Slag

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6962
Author(s):  
Bo Fu ◽  
Zhenyun Cheng ◽  
Jingyun Han ◽  
Ning Li
Keyword(s):  
Compressive Strength ◽  
Setting Time ◽  
Drying Shrinkage ◽  
Activator Concentration ◽  
Reaction Products ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated ◽  
Shrinkage Behavior

This research investigates the mechanism of metakaolin for mitigating the autogenous and drying shrinkages of alkali-activated slag with regard to the activator parameters, including concentration and modulus. The results indicate that the incorporation of metakaolin can decrease the initial viscosity and setting time. Increasing activator concentration can promote the reaction process and shorten the setting time. An increase in the metakaolin content induces a decrease in compressive strength due to reduced formation of reaction products. However, increasing activator dosage and modulus can improve the compressive strength of alkali-activated slag containing 30% metakaolin. The inclusion of metakaolin can mitigate the autogenous and drying shrinkage of alkali-activated slag by coarsening the pore structure. On the other hand, increases in activator concentration and modulus result in an increase in magnitude of the autogenous and drying shrinkage of alkali-activated slag containing metakaolin. The influence of the activator modulus on the shrinkage behavior of alkali-activated slag-metakaolin binary system should be further investigated.

Unlocking the role of MgO in the carbonation of alkali-activated slag cement

2018 ◽  
Vol 5 (7) ◽  
pp. 1661-1670 ◽  
Author(s):  
S. M. Park ◽  
J. G. Jang ◽  
H. K. Lee
Keyword(s):  
Slag Cement ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

MgO incorporation into alkali-activated slag cement reduces the rate of carbonation.

Influence of hydrated lime on mechanical and shrinkage properties of alkali-activated slag cement

2021 ◽  
Vol 289 ◽  
pp. 123201
Author(s):  
Juan He ◽  
Wenbin Bai ◽  
Weihao Zheng ◽  
Junhong He ◽  
Guochen Sang
Keyword(s):  
Hydrated Lime ◽  
Slag Cement ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

Using hazardous barium slag as a novel admixture for alkali activated slag cement

2021 ◽  
pp. 104332
Author(s):  
Xiao Huang ◽  
Chen Xin ◽  
Jiang-shan Li ◽  
Ping Wang ◽  
Shuai Liao ◽  
...  
Keyword(s):  
Slag Cement ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

scholarly journals Quantitative Elemental Mapping of Alkali Activated Slag Cement

2018 ◽  
Vol 24 (S1) ◽  
pp. 788-789
Author(s):  
Najat A. Alharbi ◽  
Richard K. Hailstone ◽  
Benjamin Varela
Keyword(s):  
Elemental Mapping ◽  
Slag Cement ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated
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