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
相关论文
共 17 条
  • [1] Quantification of the residual mortar content in recycled concrete aggregates by image analysis
    Abbas, A.
    Fathifazl, G.
    Fournier, B.
    Isgor, O. B.
    Zavadil, R.
    Razaqpur, A. G.
    Foo, S.
    [J]. MATERIALS CHARACTERIZATION, 2009, 60 (07) : 716 - 728
  • [2] Influence of recycled aggregates on mechanical properties of HS/HPC
    Ajdukiewicz, A
    Kliszczewicz, A
    [J]. CEMENT & CONCRETE COMPOSITES, 2002, 24 (02) : 269 - 279
  • [3] Amorim P, 2012, ACI MATER J, V109, P195
  • [4] [Anonymous], 2008, 12620A1 CSN EN CNI
  • [5] [Anonymous], 1984, 731236 CSN CNI
  • [6] [Anonymous], 2010, GEN TREATM WAST
  • [7] Bodnarova L., 2014, INT J CIVIL ENV STRU, V8, P181
  • [8] Durability performance of concrete with recycled aggregates from construction and demolition waste plants
    Bravo, Miguel
    de Brito, Jorge
    Pontes, Jorge
    Evangelista, Luis
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2015, 77 : 357 - 369
  • [9] Water absorption variability of recycled concrete aggregates
    Joseph, Miquel
    Boehme, Luc
    Sierens, Zeger
    Vandewalle, Lucie
    [J]. MAGAZINE OF CONCRETE RESEARCH, 2015, 67 (11) : 592 - 597
  • [10] Effect and mechanism of surface-coating pozzalanics materials around aggregate on properties and ITZ microstructure of recycled aggregate concrete
    Kong, Deyu
    Lei, Ting
    Zheng, Jianjun
    Ma, Chengchang
    Jiang, Jun
    Jiang, Jing
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2010, 24 (05) : 701 - 708
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