Results 61 to 70 of about 1,779 (119)

Effectiveness of Saturated Coral Aggregate and Shrinkage Reducing Admixture on the Autogenous Shrinkage of Ultrahigh Performance Concrete [PDF]

, 2017
The use of saturated coral aggregate (SCA) as practical replacement of quartz sand has been shown to effectively mitigate the autogenous shrinkage in ultrahigh performance concrete (UHPC).
Tong Guo, Wei Deng, Yuzhuo Chen, Jinchuan Mo, Jinming Liu, Zhongwen Ou   +5 more
core   +1 more source

Properties of Autogenous Shrinkage in High-Strength Mass Concrete According to Hydration Heat Velocity

, 2011
The early-age properties and relationships between hydration heat and autogenous shrinkage in high-strength mass concrete are investigated through analysis of the history curves of hydration heat and autogenous shrinkage.
Kyung Mo Koo, Gyu Yong Kim, Hiroyuki Miyauchi, Yeon Woo Kang   +3 more
core   +1 more source

Autogenous and drying shrinkage properties of precast recycled aggregate concrete

Crushing prefabricated rejects into recycled aggregates (PRAs) and recasting them forms precast recycled aggregate concrete (PRAC), which offers superior mechanical properties, durability, and cost and environmental benefits compared to conventional RAC.
Qing Yang, Dapeng Li, Xiaoyu Jiang, Ningxu Zhang, Yong Yu, Jinjun Xu   +5 more
core   +1 more source

Autogenous shrinkage, speciality of high performance concretes [PDF]

, 2014
Autogenous shrinkage is a consequence of self dessication in pores of hardened cement paste and is, at high performance concrete significantly greater than that of the ordinary concretes, mainly due to low water to cement ratio.
Vogrič, Nina
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Mitigating the autogenous shrinkage of alkali-activated slag by metakaolin

, 2019
This study investigates the effectiveness of metakaolin (MK)in mitigating the autogenous shrinkage of alkali-activated slag (AAS). It is found that the autogenous shrinkage of AAS paste can be reduced by 40% and 50% when replacing 10% and 20% slag with ...
Nedeljković, Marija (author), Ye, Guang, Chen, B. (author), Li, Z. (author), Nedeljković, Marija, Ye, G., Ye, G. (author), Li, Z., Li, Zhenming, Chen, Boyu, Chen, B.   +10 more
core   +1 more source

Combate à retração do concreto com promoção de cura interna [PDF]

, 2013
TCC (graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Engenharia Civil.O fenômeno da retração é definido como uma deformação tridimensional de contração do concreto ocasionado pela perda de água, podendo ser dividida em: retração ...
Onghero, Lucas
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Prediction on Autogenous Shrinkage of Self-Consolidating Concrete

, 2010
Proper estimate of autogenous shrinkage of self-consolidating concrete (SCC) can provide engineers with the information necessary for producing high quality products manufactured with SCC.
Wu Jian Long, Kamal Henri Khayat, Feng Xing   +2 more
core   +1 more source

Prediction of autogenous shrinkage of concretes by support vector machine

, 2016
Support vector machine (SVM) is firmly based on learning theory and uses regression technique by introducing accuracy insensitive loss function. In this paper, a SVM model for the autogenous shrinkage of concrete mixtures was proposed.
Zhao, Xiaowen, Yan, KeZhen, Hu, Yue, Liu, Jun   +3 more
core   +1 more source

Autogenous shrinkage properties of high performance cement based products

, 2011
Yüksek performanslı ve yüksek dayanımlı betonların üretimiyle, otojen rötre kavramı büyük bir önem kazanmıştır. Çimento miktarı yüksek, su/çimento oranı çok düşük seviyelerde olan bu ...
M. Süheyl AKMAN, B. Yılmaz PEKMEZCİ, Mehmet UYAN   +2 more
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Early age autogenous shrinkage and long-term drying shrinkage of fibre reinforced concrete. [PDF]

, 2017
The role of fibres against cracking in concrete because of volumetric deformations has become popular over the years. Various researchers have reported the crack-control benefits of fibres in both fresh and hardened concrete.
Ullah, Farid
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