Performance of waste glass powder (WGP) supplementary cementitious material (SCM) – Drying shrinkage and early age shrinkage cracking
نویسندگان
چکیده
منابع مشابه
Early Age Shrinkage Behavior of Triple Blend Concrete
The early age shrinkage is responsible for the early age cracking of concrete. It is very critical for durability of concrete. The change in volume of concrete due to evaporation of water or dehydration process is known as shrinkage. To reduce the early age shrinkage utilized the supplementary cementitious material (SCM) in concrete. In present research industrial and agricultural waste byprodu...
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Shrinkage of concrete, along with the cracking that often accompanies it, has been a continual concern of the concrete construction community.1,2 In the past 20 years or so, numerous shrinkage-reducing admixtures (SRAs) have been developed with the goal of reducing drying shrinkage and delaying or preventing cracking.2-6 Most SRAs function by reducing the surface tension of the pore solution in...
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Note that νj([2S−1]) = 1 and νj(ρ) is a strictly increasing function for ρ < [S−1]−1. The proof of Theorem 2 in Wainwright (2009) establishes that for each value of the tuning parameter λ the necessary condition for the signed support recovery is |νj + Z̃j| ≤ 1 with Z̃j = λ−1XT j ΠX⊥ K ( ). Note that Zj follows a non-degenerate zeromean gaussian distribution for S < n, thus the probability of the...
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Early-age cracking continues to be a significant problem for new concrete construction. Two of the major contributors to such cracking are the heat released by cement hydration during the first few days of curing and the autogenous shrinkage that often occurs during the same timeframe. In this paper, three potential alternatives for reducing these contributions by modifying the concrete mixture...
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ژورنال
عنوان ژورنال: Epitoanyag - Journal of Silicate Based and Composite Materials
سال: 2014
ISSN: 0013-970X,2064-4477
DOI: 10.14382/epitoanyag-jsbcm.2014.4