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Effect of Controlled Temperature (27°C- 42°C) on Strength of M20 Grade of Concrete

Every year a large number of concrete construction projects are executed in different temperature conditions in India. The rapid development of the infrastructure facilities in Indian region has resulted in huge concrete construction programme executed in the last decade. Hot climate creates many effects on concrete like rapid evaporation of mixing water resulting in rapid slump loss of concrete, reducing the concrete strength as well as setting time of cement, also reduced durability and increasing thermal cracking and plastic shrinkage. This paper presents an assessment of effect of increasing temperature on M20 grade concrete. Compressive strength and flexural strength being most important properties of structural concrete. Experimentation has been carried out to study the compressive strength and flexural strength properties of M20 grade concrete in desired temperature condition in chamber. The results have shown that workability of concrete decreases with increase in temperature. Temperature varying form 270C-420Cdoes not show much variation on compressive and flexural strengths.