Investigating the effect of curing methods on the strength properties of concrete
Investigating the effect of curing methods on the strength properties of concrete
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Date
2021
Authors
Danso, Humphery
Gabriel-Wettey, F
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ResearchGate
Abstract
In the hot humid climate, the method of curing used is critical in achieving the needed strength of concrete for construction application. This study sought to investigate how the different curing methods can influence the compressive and flexural strengths of concrete in the hot humid climate. The targeted compressive strength of the concrete at 28-day of curing was 20 N/mm2. Plain concrete cubes and beams were prepared with a mix ratio of 1:1.5:3 by weight and 0.6 water-cement ratio. A total of 120 concrete specimens were prepared, comprising 60 each for cubes and beams. Four different curing methods (immersion, wet jute sack covering, plastic sheet covering and water sprinkling) were adopted. The concrete specimens were tested on 7, 14, 21, 28 and 56 days of curing. It emerged that the immersion curing method recorded the highest compressive values of 23.43 and 25.83 N/mm2, respectively for the 28 and 56 days curing at a significant difference of 16% increase strength over the sprinkling method. It was also found that the immersion curing method obtained the highest flexural strength of 2.81 and 3.49 N/mm2, respectively for the 28 and 56 days curing at 14% increase strength over the sprinkling method. The study, therefore, concludes that the use of the appropriate method of curing can have an effect on the flexural and compressive strengths of the concrete, and therefore recommend the adoption of immersion curing method, especially in the hot humid climate for precast and laboratory-based concrete units 'production
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Citation
Gabriel-Wettey, F., & Danso, H. (2021, August). Investigating the effect of curing methods on the strength properties of concrete. In Conference: West Africa Built Environment Research (WABER) Conference WABER 2021 Conference (pp. 9-11).