Properties of self-compacting high-strength concrete containing multiple use of recycled aggregate

被引：77

作者：

Abed M. ^{[1
]}

Nemes R. ^{[1
]}

Tayeh B.A. ^{[2
]}

机构：

[1] Department of Construction Materials and Technologies, Műegyetem rkp 3, Budapest

[2] Civil Engineering Department, Faculty of Engineering, Islamic University of Gaza, Gaza

来源：

Journal of King Saud University - Engineering Sciences | 2020年 / 32卷 / 02期

基金：

匈牙利科学研究基金会;

关键词：

Computed tomography (CT); Mechanical properties; Recycled aggregate concrete (RAC); Reused recycled aggregate concrete (RRAC); Self-compacting high-strength concrete (SCHSC);

D O I：

10.1016/j.jksues.2018.12.002

中图分类号：

学科分类号：

摘要：

Advances in recycling can exceed traditional practice in that a non-renewable resource can at least become a partially renewable resource. This research attempts to support the cradle-to-cradle concept by testing the effect of reused recycled concrete aggregates (RRCA) on the fresh, physical, mechanical, and microstructure properties of self-compacting high-strength concrete (SCHSC). Two generations of recycled aggregate concrete (RAC) are produced; the first and second are created by recycled concrete aggregate (RCA) and by RRCA, respectively. For each generation, two replacement amounts are used (25% and 50% by mass). Results show that using RRCA does not affect the fresh properties of SCHSC, and up to 50% RRCA replacement amount by mass can be adopted for enhancing the mechanical and microstructure properties of reused recycled aggregate concrete (RRAC). Computed tomography indicates that the porosity of RRCA is less than that of RCA. © 2018 The Authors

引用

页码：108 / 114

页数：6

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