Analysis of workability, mechanical strength and durability by the FT-IR method of concrete based on silica-limestone sand preserved in aggressive environments

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Published Dec 22, 2021
DOI https://doi.org/10.3221/IGF-ESIS.59.37

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Hima Abdelkader
Department of Electrical Engineering, Faculty of Technology, University of El-Oued, 39000, Algeria
https://orcid.org/0000-0002-5533-3991 Tarek Djedid
Laboratory of exploitation and valorisation of Saharan energy resources " LEVRES " Department of Hydraulic and Civil Engineering, Faculty of Technology, University of El-Oued, 39000, Algeria
Mohammed Mani
Department of Hydraulic and Civil Engineering, Faculty of Technology, University of El-Oued, 39000, Algeria
Abdelhamid Guettala
Research Laboratory in Civil Engineering « LRGC » University Mohamed Khider Biskra, BP 145 RP, 07000 Biskra, Algeria

Abstract

The interest of using combined sand of equal percentage of silica and limestone becomes evident in the formulation of compacted concrete in several previous works around the world, due to the formidable percentage of fines that improves the compactness and increases various mechanical resistances, which produces a more durable construction against different probable aggressions.


This paper examines the effect of using this type of sand on workability, compressive strength, flexural strength, and splitting tensile strength. A durability test was consulted using infrared spectroscopy to assess diverse types of hydration products formed. Found results clearly show the advantages of using sand with silica and limestone grains (50/50)% in ordinary concrete infected by aggressive water. There is also an improvement in compactness, different mechanical resistances, and a reduction in the formation of harmful hydration products.

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    Issue
    Vol. 16 No. 59 (2022): January 2022
    Section
    Miscellanea

    How to Cite

    Abdelkader, H., Djedid, T., Mani, M. and Guettala, A. (2021) “Analysis of workability, mechanical strength and durability by the FT-IR method of concrete based on silica-limestone sand preserved in aggressive environments”, Frattura ed Integrità Strutturale, 16(59), pp. 566–579. doi: 10.3221/IGF-ESIS.59.37.
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