Effects of Carbonation on the Properties of Concrete

Ikumapayi C. M.*, Adeniji A. A., Obisesan A. A., Odeyemi O. and Ajayi J. A.
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Ikumapayi C. M.*: The Federal University of Technology, Akure, Nigeria Elizade University, Ilara-mokin, Nigeria
Adeniji A. A.: Elizade University, Ilara-mokin, Nigeria
Obisesan A. A.: Elizade University, Ilara-mokin, Nigeria
Odeyemi O.: Elizade University, Ilara-mokin, Nigeria
Ajayi J. A.: Elizade University, Ilara-mokin, Nigeria

Scientific Review, 2019, vol. 5, issue 12, 205-214

Abstract: Concrete is one of the reliable, durable, economical and acceptable construction materials among the building and construction stakeholders worldwide. Performance of concrete could be threatened especially reinforced concrete by some processes such as corrosion, sulfate attack among others. Corrosion of reinforcement in reinforced concrete can be induced by carbonation process. Even though carbonation initiates corrosion, it has been gathered that carbonation could still be of immense benefits to building and construction industries if its mechanism of operation is understudied. This research work has therefore investigated the effect of carbonation on some selected mechanical properties of concrete such as compressive strength, flexural strength, water absorption and weight changes. Concrete cubes and beams of M15 grade with 0.5 % water-cement ratio were prepared and subjected to accelerated carbonation. Their compressive strength, flexural strength, water absorption and weight changes were determined in accordance with the relevant standards. The outcomes show that carbonation improves all the mechanical properties investigated. The use of carbonation can be positively explored in reinforced concrete provided there is adequate nominal cover.

Keywords: Carbonation; Compressive strength; Flexural strength; Water absorption rate; Weight change. (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:arp:srarsr:2019:p:205-214

DOI: 10.32861/sr.512.205.214

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