New technique of improving the cracking resistance of concrete walls in early age

2005 ◽  
pp. 717-724 ◽  
Author(s):  
S Wolinski
Keyword(s):  
New Technique ◽  
Early Age ◽  
Cracking Resistance ◽  
Concrete Walls

Effect of Water-to-Cement Ratio on Cracking Resistance of Concrete at Early Age in Restrained Ring Specimens

2021 ◽  
Author(s):  
Dejian Shen ◽  
Yang Jiao ◽  
Ci Liu ◽  
Jiacheng Kang ◽  
Xiaojian Tang
Keyword(s):  
Development Rate ◽  
Ring Test ◽  
Engineering Practice ◽  
Early Age ◽  
Cracking Resistance ◽  
Multiple Parameters ◽  
Concrete Mixtures ◽  
Water To Cement Ratio ◽  
Study Results ◽  
The Impact

Nowadays, low water-to-cement (w/c) ratio has been put into widespread use in engineering practice. However, low w/c ratio may give rise to high self-desiccation, which may lead to the decrease of early-age cracking resistance. Investigating the impact of w/c ratio on cracking resistance is utterly meaningful to understand the cracking mechanism of concrete better. However, the corresponding investigations remain lacking, especially when the ring test is utilized. Ring tests for three concrete mixtures with different w/c ratios were conducted to investigate the early-age cracking resistance of concrete from multiple parameters in the present study. Results showed that: (1) the development rate of shrinkage of concrete for Mixture W50 was slower than Mixture W33 and W40; (2) the value and development rate of residual stress of concrete decreased when the w/c ratio increased; (3) the relaxed stress for all mixtures developed rapidly at very early age, and reached the maximum quickly; (4) the cracking resistance of concrete increased as the w/c ratio increased at early age.

Field measurements for early-age strains in concrete walls

1990 ◽  
Vol 42 (153) ◽  
pp. 203-212 ◽  
Author(s):  
M. Anson ◽  
P. M. Rowilson
Keyword(s):  
Field Measurements ◽  
Early Age ◽  
Concrete Walls

The Research of GGBS’ Influence on the Cracking Resistance of Concrete

2014 ◽  
Vol 919-921 ◽  
pp. 1864-1867
Author(s):  
Yan Liu ◽  
Dao Xun Ma
Keyword(s):  
Test Method ◽  
Early Age ◽  
Cracking Resistance ◽  
Volume Stability ◽  
The Impact

The aim of this paper is to study the impact of GGBS on the early age cracking resistance of concrete. To assess the volume stability of premixed concrete under different dosage of GGBS an innovative cracking test method is adopted, and the causes and effect mechanisms of that are analyzed.

Early-age cracking resistance of ground granulated blast furnace slag concrete

2019 ◽  
Vol 222 ◽  
pp. 278-287 ◽  
Author(s):  
Dejian Shen ◽  
Kaiqi Liu ◽  
Chuyuan Wen ◽  
Yongqiang Shen ◽  
Guoqing Jiang
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Early Age ◽  
Cracking Resistance ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag
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