Self-compacting concrete with recycled concrete aggregate: Study of the long-term properties

被引:104
作者
Manzi, Stefania [1 ]
Mazzotti, Claudio [1 ]
Bignozzi, Maria Chiara [1 ]
机构
[1] Univ Bologna, Dept Civil Chem Environm & Mat Engn, Viale Risorgimento 2, I-40136 Bologna, Italy
关键词
Self-compacting concrete; Concrete construction and demolition waste; Recycled concrete aggregate; Porosity measurements; Long-term properties; MECHANICAL-PROPERTIES; DEMOLITION WASTE; STRUCTURAL CONCRETE; FRESH PROPERTIES; BEHAVIOR; COARSE; CONSTRUCTION; PREDICTION; SHRINKAGE; CREEP;
D O I
10.1016/j.conbuildmat.2017.09.129
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper investigates the shrinkage and creep of self-compacting concrete prepared with coarse and fine recycled concrete aggregates (up to 40% of total amount of aggregates). Physical properties and porosity measurements are studied and related to the mechanical properties. Results highlight that self-compacting characteristics are maintained when recycled aggregates are utilized and their good quality promotes high mechanical properties. Creep behavior and pores size distributions are more influenced by the content and assortment of recycled aggregates, although their effect is more limited compared to what occurs in traditional concrete with recycled aggregates. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:582 / 590
页数:9
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