Investigate The Mechanical Properties of Binder Concrete Under Various Curing Methods

Abstract

Curing is one of the most important steps in concrete manufacturing, as it stimulates cement reactions to achieve superior mechanical properties. Since water is the most common method for curing concrete, and in light of global warming and water scarcity, this research focuses on finding alternative methods that achieve rates close to those of water curing. Various curing techniques are typically used to reach concrete compressive strength. The laboratory results of this study investigate the effect of curing techniques (namely, water, air-dry, burlap, membrane, and chemical spray) on compressive strength (Fcu) and indirect tensile stress (Ft) using 200 specimens. In order to reach the optimum method for concrete curing, two different cement contents (namely, 350 kg/m3 and 450 kg/m3) with and without chemical admixture (superplasticizer). Tests for compressive and indirect tensile strength were conducted on four different concrete mixes. Based on the experimental results, adding superplasticizer and increasing the cement content improved the mechanical qualities represented by compressive strength. The longer the curing period of the concrete, the higher the Fcu obtained. Additionally, adding 1% of SP has a stronger effect on Fcu than adding 100 kg of cement.

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