scholarly journals Effect of Elevated Temperature on Meso- and Micro-Structure and Compressive Strength of High-Strength Concrete and Mortar Containing Blast-Furnace Slag

2018 ◽  
Vol 16 (10) ◽  
pp. 498-511 ◽  
Author(s):  
Zhiwei Li ◽  
Long Li ◽  
Jiakun Wang ◽  
Xianghao Wu
2014 ◽  
Vol 1033-1034 ◽  
pp. 878-881
Author(s):  
Yan Yan Hu ◽  
Ting Shu He ◽  
Xian Zhe Zhang

High-strength concrete in the autoclaved-curing was made by the way of mixing single and double doped. The compressive strength of concrete and the morphology of hydrates in concrete containing ground granulated blast-furnace slag (SG) and Quartz sand (QS) have been investigated using XRD and SEM measurements. The results show that quartz sand also possesses effective pozzolanic property in the steam-autoclaved stage. The mixed proportion of QP:SG=1:1 is the best when the dose is 30%.The paste became denser through double mixing. When the doses is 10-35%, SG for the improvement of concrete compressive strength is higher than the quartz sand.


2011 ◽  
Vol 217-218 ◽  
pp. 113-118 ◽  
Author(s):  
Dong Sheng Shi ◽  
Yoshihiro Masuda ◽  
Young Ran Lee

In this experiment, blast furnace slag fine aggregate that was produced by 3 different steel factory was been used in high-strength concrete, and mechanical properties of high-strength concrete were studied. The concrete using the blast furnace slag fine aggregate is admitted the increase of compressive strength as well as the case of the river sand when the water cement ratio is reduced, and the compressive strength can attain 100N/mm2. The strength of concrete using blast furnace slag fine aggregate is lower than the strength of concrete using natural river sand as fine aggregate, and the strength of concrete using mixture fine aggregate is middle of strength used river sand and strength used blast furnace slag fine aggregate. The crushing value of blast furnace slag fine aggregate is bigger than the natural river sand, and it could influence the strength of high-strength concrete using blast furnace slag fine aggregate.


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