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the ideal temp for concrete placement is 15-25* C if the temp is above 40*C concrete requires cooling and if it is below 5*C it requires heating.
FINDINGS
1> 25mm slump decrease for each *C increase in temp
2> If the temp is 38* C and the humidity is 25% than concrete strength after 28 days can be reduced to 62% as compared to strength if the temp during concreting were 23* C with 90% Humidity !
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How does hot weather make concrete crack?
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