A Case Study on The Mechanical and Durability Properties of a Concrete Using Recycled Aggregates

Khaoula Naouaoui; Toufik Cherradi

doi:10.28991/cej-2021-03091768

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Khaoula Naouaoui
naouaoui.khaoula@gmail.com
Mohammadia School of Engineers, Mohammed V University, Rabat,, Morocco
Toufik Cherradi Mohammadia School of Engineers, Mohammed V University, Rabat,, Morocco

Vol. 7 No. 11 (2021): November

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In Morocco, Recycled Aggregate Concrete (RAC) is not promoted unlike developed countries like France, Canada, US and many others. This article aims to present a Moroccan study related to the characterization of RAC and compare it with several studies all over the world. It focuses on compressive strength as the main mechanical characteristic and the porosity as the physical property that affects durability. The protocol is based on crushing concrete from demolished building and producing aggregates that are used in making experimental samples of RAC with different percentages of replacing Natural Aggregates (NA) by recycled ones. The first part of experimental study is to determine compressive strength of these samples after 7, 21, 28 and 90 days of confectioning it. Test results prove that above 25% of replacement level, the compression drops considerably and the Recycled Aggregates (RA) can't replace the naturel ones. The second part of studies focuses on studying porosity as indicator of durability according to the performance approach. It concludes that the RAC may be used in a construction with a required life of 100 years specially building and roads. For high standards constructions or construction in a specific environment, more studies should be done.

Doi: 10.28991/cej-2021-03091768

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Publication Start Year:	2015
JCR 2023 Impact Factor (IF):	4.3
JIF QUARTILE:	Q1
SJR 2023 Quartile:	Q1
Acceptance Rate:	27%
Review Speed (Average):	76 days
Issue Per Year:	12
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Scopus CiteScore:	7.0
No. of Google Citations:	17324
Google h-index:	47
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Abstract Views:	5,819,908
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A Case Study on The Mechanical and Durability Properties of a Concrete Using Recycled Aggregates

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