AUTOGENOUS SHRINKAGE OF LIGHTWEIGHT AGGREGATE CONCRETE AT EARLY AGE

被引：0

作者：

Dong, Shuhui ^{[1
]}

Ge, Yong ^{[1
]}

Yuan, Jie ^{[1
]}

Zhang, Baosheng ^{[1
]}

Xu, Chao ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150006, Heilongjiang Pr, Peoples R China

来源：

MICROSTRUCTURE RELATED DURABILITY OF CEMENTITIOUS COMPOSITES, VOLS 1 AND 2 | 2008年 / 61卷

关键词：

lightweight aggregate concrete; autogenous shrinkage; water content; hydration temperature rise;

D O I：

暂无

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The deformation of concrete specimen was monitored at 3 hours later after casting by using the autogenous shrinkage testing device developed by ourselves. And the effect of lightweight aggregate with different degree of water saturation on early age autogenous shrinkage of lightweight aggregate concrete with different water-binder ratios were investigated, and compared with that of common aggregate concrete. The results indicates that the autogenous shrinkage of concrete incorporated with pre-soaked lightweight aggregate is significantly lower than common concrete, and the autogenous shrinkage of lightweight aggregate concrete decrease with the increase of the water content in aggregate. The ratio of water to binder has a significant effect on early age autogenous shrinkage. The autogenous shrinkage of lightweight aggregate concrete with water-binder ratio of 0.6 is just about 30% of the concrete with water-binder ratio of 0.3. By monitoring the temperature evolution of the concrete, it was found that the rise of temperature induced by the heat of hydration was as much as 5.1 degrees C. And the temperature deformation due to cement hydration has a great influence on the testing results of autogenous shrinkage of concrete.

引用

页码：841 / 848

页数：8

共 50 条

[31] Effect of coarse aggregate on characteristics of plastic shrinkage cracking of lightweight aggregate concrete
Sun, Da-Ming
He, Bing
Wu, Fang
Yu, Xiao
Chongqing Jianzhu Daxue Xuebao/Journal of Chongqing Jianzhu University, 2004, 26 (04):
[32] Lightweight Aggregate as Internal Curing Agent to Limit Concrete Shrinkage
Browning, JoAnn
Darwin, David
Reynolds, Diane
Pendergrass, Benjamin
ACI MATERIALS JOURNAL, 2011, 108 (06) : 638 - 644
[33] Shrinkage and creep of high-strength lightweight aggregate concrete
Sun, Hailin
Ye, Lieping
Ding, Jiantong
Guo, Yushun
Qinghua Daxue Xuebao/Journal of Tsinghua University, 2007, 47 (06): : 765 - 767
[34] Reduction of the Early Autogenous Shrinkage of High Strength Concrete
Saje, Drago
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2015, 2015
[35] Effectiveness of Saturated Coral Aggregate and Shrinkage Reducing Admixture on the Autogenous Shrinkage of Ultrahigh Performance Concrete
Liu, Jinming
Ou, Zhongwen
Mo, Jinchuan
Chen, Yuzhuo
Guo, Tong
Deng, Wei
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2017, 2017
[36] Experimental study and prediction model for autogenous shrinkage of recycled aggregate concrete with recycled coarse aggregate
Wang, Qinghe
Wang, Yu-Yin
Geng, Yue
Zhang, Huan
CONSTRUCTION AND BUILDING MATERIALS, 2021, 268
[37] Internal curing of high-performance concrete with pre-soaked fine lightweight aggregate for prevention of autogenous shrinkage cracking
Cusson, Daniel
Hoogeveen, Ted
CEMENT AND CONCRETE RESEARCH, 2008, 38 (06) : 757 - 765
[38] Addition of pre-wetted lightweight aggregate and steel/polypropylene fibers in high-performance concrete to mitigate autogenous shrinkage
Zhao, Yanhua
Xu, Bohan
Chang, Jianmei
STRUCTURAL CONCRETE, 2020, 21 (03) : 1134 - 1143
[39] Pozzolanic Reactivity and the Influence of Rice Husk Ash on Early-Age Autogenous Shrinkage of Concrete
Amin, Muhammad Nasir
Hissan, Syed
Shahzada, Khan
Khan, Kaffayatullah
Bibi, Tayyaba
FRONTIERS IN MATERIALS, 2019, 6
[40] Early-age autogenous shrinkage and tensile creep of concrete reinforced with polypropylene macro fiber
Wen, Chuyuan
Shen, Dejian
Luo, Yueyao
Wang, Wenting
Liu, Ci
Li, Ming
JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS, 2023, : 1255 - 1269

← 1 2 3 4 5 →