Carbonated recycled coarse aggregate and uniaxial compressive stress-strain relation of recycled aggregate concrete - Details

author：

Luo, S. (Luo, S..) ^[1] | Ye, S. (Ye, S..) ^[2] | Xiao, J. (Xiao, J..) ^[3] | Zheng, J. (Zheng, J..) ^[4] | Zhu, Y. (Zhu, Y..) ^[5]

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Scopus

Abstract：

Carbonation　treatment　was　employed　to　improve　the　quality　of　recycled　coarse　aggregate　(RCA),　and　the　RCA　or　carbonated　RCA　(CRCA)　was　used　to　prepare　recycled　aggregate　concrete　(RAC　or　RAC-C).　The　influence　of　the　RCA　replacement　rate　and　CRCA　on　the　mechanical　properties　and　stress-strain　relation　of　concrete　was　investigated.　The　results　have　shown　that　carbonation　treatment　enhances　the　physical　properties　and　interfacial　transition　zone　(ITZ)　of　CRCA,　and　effectively　prevents　the　degradation　in　mechanical　properties　of　concrete.　Increased　RCA　or　CRCA　replacement　rate　reduces　the　peak　stress　and　ascending　slope　and　increases　the　peak　strain　of　RAC　or　RAC-C.　The　stress-strain　curve　of　RAC-C　has　higher　ascending　slope,　peak　stress　and　lower　peak　strain　than　that　of　RAC　and　is　closer　to　that　of　natural　aggregate　concrete　(NAC)　due　to　the　improved　new　ITZ.　The　stress-strain　relation　result　agrees　well　with　the　proposed　model.　©　2018　Elsevier　Ltd

Keyword：

Carbonated recycled coarse aggregate (CRCA); Carbonation treatment; Interfacial transition zone (ITZ); Mechanical properties; Recycled aggregate concrete (RAC); Recycled coarse aggregate (RCA); Stress-strain relation

Community：

[ 1 ] [Luo, S.]College of Civil Engineering, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Ye, S.]College of Civil Engineering, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Xiao, J.]College of Civil Engineering, Fuzhou University, Fuzhou, 350116, China
[ 4 ] [Xiao, J.]Department of Structural Engineering, Tongji University, Shanghai, 200092, China
[ 5 ] [Zheng, J.]College of Engineering, Fujian Jiangxia University, Fuzhou, 350108, China
[ 6 ] [Zhu, Y.]College of Engineering, Fujian Jiangxia University, Fuzhou, 350108, China

Reprint 's Address：

[Luo, S.]College of Civil Engineering, Fuzhou UniversityChina

Email：

lsr@fzu.edu.cn

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Source ：

Construction and Building Materials

ISSN： 0950-0618

Year： 2018

Volume： 188

Page： 956-965

4 . 0 4 6

JCR@2018

7 . 4 0 0

JCR@2023

ESI HC Threshold：284

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 131

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 1

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