Article (Scientific journals)
In-situ strength estimation of polypropylene fibre reinforced recycled aggregate concrete using Schmidt rebound hammer and point load test
Kazemi, Mostafa; Hajforoush, Mohammad; Khakpour Talebi, Pouyan et al.
2020In Journal of Sustainable Cement-Based Materials
Peer reviewed
 

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Keywords :
In-situ strength estimation; Recycled coarse aggregate; Polypropylene fibres; Point load test; Schmidt rebound hammer
Abstract :
[en] An appropriate amount of polypropylene fibre (PF) content is generally able to compensate for the low compressive strength of the recycled aggregate concrete. This mechanical strength is required to reliably estimate at the building site using partially and non-destructive testing methods. Therefore, in the present study, the compressive strength of concrete with PF at 0.1% by volume and different replacement levels of recycled coarse aggregate (RCA) was assessed using point load test (PLT) and Schmidt rebound hammer. According to the results, the sensitivity of the core specimens to the concentrated point load and the short size of PF in the failure zone of the PLT caused to appear a difference among the enhancement trends of PLI values by increasing the age. In addition, a two-variable equation between the rebound number and point load index (PLI) reliably predicted either strength of coarse natural concrete or recycled aggregate concrete or PRAC.
Disciplines :
Civil engineering
Author, co-author :
Kazemi, Mostafa  ;  Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Hajforoush, Mohammad
Khakpour Talebi, Pouyan
Daneshfar, Mohammad
Shokrgozar, Ali
Jahandari, Soheil
Saberian, Mohammad
Li, Jie
Language :
English
Title :
In-situ strength estimation of polypropylene fibre reinforced recycled aggregate concrete using Schmidt rebound hammer and point load test
Publication date :
2020
Journal title :
Journal of Sustainable Cement-Based Materials
ISSN :
2165-0373
eISSN :
2165-0381
Publisher :
Taylor & Francis, United Kingdom
Peer reviewed :
Peer reviewed
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since 25 August 2020

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