Properties of concrete with partial replacement of natural aggregate by recycled concrete aggregates from precast production

被引：31
|
作者：
Novakova, Iveta [1 ]
Mikulica, Karel [1 ]
机构：
[1] Brno Univ Technol, Veveri 331-95, Brno 60200, Czech Republic
来源：
ECOLOGY AND NEW BUILDING MATERIALS AND PRODUCTS 2016 | 2016年 / 151卷
关键词：
Concrete recycling; recycled concrete aggregates (RCA); defected elements from precast production; mechanical performance; DURABILITY; PERFORMANCE;
D O I：
10.1016/j.proeng.2016.07.387
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Recycled concrete aggregates (RCA) can be used as a replacement of natural aggregates for a concrete production to save natural sources and also to decrease amount of demolition waste which has to be landfilled. Precast production generates some percentage of defected elements which are carted off and recycled with other demolition waste. In this study defected elements are separately recycled into RCA with beneficial properties and used directly into new mixtures for precast elements. Results from testing of RCA and application into new concrete mixtures are presented. It was proved that the replacement of raw aggregates by RCA up to 20% has no negative influence on physico-mechanical properties of concrete. (C) 2016 Published by Elsevier Ltd.
引用
收藏
页码：360 / 367
页数：8
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