Autogenous shrinkage and drying shrinkage of recycled aggregate concrete: A review

被引：134
作者：
Mao, Yuguang [1 ,2 ]
Liu, Jianhui [1 ,2 ]
Shi, Caijun [1 ,2 ,3 ]
机构：
[1] Hunan Univ, Coll Civil Engn, Key Lab Green & Adv Civil Engn Mat & Applicat Tec, Changsha 410082, Peoples R China
[2] Hunan Univ, Coll Civil Engn, Int Innovat Ctr Green & Adv Civil Engn Mat Hunan, Changsha 410082, Peoples R China
[3] Univ British Columbia, Dept Civil Engn, Vancouver, BC V6T 1Z4, Canada
来源：
JOURNAL OF CLEANER PRODUCTION | 2021年 / 295卷
关键词：
Recycled aggregate concrete; Recycled concrete aggregate; Autogenous shrinkage; Drying shrinkage; Shrinkage model; MICROBIAL CARBONATE PRECIPITATION; HIGH-PERFORMANCE CONCRETE; 2-STAGE MIXING APPROACH; MECHANICAL-PROPERTIES; FLY-ASH; DURABILITY PROPERTIES; STRUCTURAL CONCRETE; COARSE AGGREGATE; WATER REPELLENT; PORE STRUCTURE;
D O I：
10.1016/j.jclepro.2021.126435
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This paper comprehensively reviews the factors influencing the autogenous shrinkage and drying shrinkage of recycled aggregate concrete (RAC). Compared with natural aggregate concrete (NAC), RAC has a lower autogenous shrinkage because of the internal curing effect of recycled concrete aggregate (RCA). However, the internal curing efficiency of RCA is less than that of the lightweight aggregate because of its lower porosity and different pore structure. The drying shrinkage of RAC is larger than that of NAC, which is mainly caused by the mortar attached to the original virgin aggregate (OVA). Therefore, the methods of strengthening adhered or removing adhered mortar can reduce the drying shrinkage of RCA effectively. Some methods of strengthening adhered mortar are more environmentally friendly than removing adhered mortar. Finally, the existing autogenous shrinkage and drying shrinkage prediction models of RAC are discussed. The models obtained by seeing RCA as the two-phase composite has a higher degree of accuracy. This paper can support a better and more comprehensive understanding of the autogenous and drying shrinkages of RAC and how to reduce the cracking risk of RAC, which provides a theoretical base for future research and applications of RAC in the construction industry. (c) 2021 Elsevier Ltd. All rights reserved.
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页数：18
相关论文
共 137 条
[1]   Internal curing effect of raw and carbonated recycled aggregate on the properties of high-strength slag-cement mortar [J].
Abate, Selamu Yihune ;
Song, Keum-Il ;
Song, Jin-Kyu ;
Lee, Bang Yeon ;
Kim, Hyeong-Ki .
CONSTRUCTION AND BUILDING MATERIALS, 2018, 165 :64-71
[2]   Aggregate Restraining Effect on Autogenous Shrinkage of Cementitious Materials [J].
Akcay, Burcu .
KSCE JOURNAL OF CIVIL ENGINEERING, 2018, 22 (08) :3102-3111
[3]   Construction and demolition waste generation and properties of recycled aggregate concrete: A global perspective [J].
Akhtar, Ali ;
Sarmah, Ajit K. .
JOURNAL OF CLEANER PRODUCTION, 2018, 186 :262-281
[4]   Optimization of normal and high strength recycled aggregate concrete mixtures by using packing model [J].
Amario, Mayara ;
Rangel, Caroline Santana ;
Pepe, Marco ;
Toledo Filho, Romildo Dias .
CEMENT & CONCRETE COMPOSITES, 2017, 84 :83-92
[5]  
[Anonymous], 2008, WATER SCI ENG, DOI DOI 10.3882/j.issn.1674-2370.2008.04.007
[6]   Durability and shrinkage of concrete with CDW as recycled aggregates: Benefits from superplasticizer's incorporation and influence of CDW composition [J].
Bravo, M. ;
de Brito, J. ;
Evangelista, L. ;
Pacheco, J. .
CONSTRUCTION AND BUILDING MATERIALS, 2018, 168 :818-830
[7]   30-year creep and shrinkage of concrete [J].
Brooks, JJ .
MAGAZINE OF CONCRETE RESEARCH, 2005, 57 (09) :545-556
[8]   The effect of recycled concrete aggregate properties on the bond strength between RCA concrete and steel reinforcement [J].
Butler, L. ;
West, J. S. ;
Tighe, S. L. .
CEMENT AND CONCRETE RESEARCH, 2011, 41 (10) :1037-1049
[9]  
Cao Y., 2009, Eng. Constr., V23, P47
[10]  
[陈益民 Chen Yimin], 2006, [材料导报, Materials Review], V20, P28
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