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In cold weather conditions, the temperature of concrete should not be allowed to fall below ___________ for at least 3 days after its placing.(a) 5° C(b) 25°C(c) 15°C(d) 50°CThe question was posed to me in an online interview.The query is from Placing of Concrete in division Cement Concrete Construction of Construction & Building Materials

Answer»

Right answer is (c) 15°C

Explanation: At the time of PLACING, the TEMPERATURE of concrete should be between 15° CELSIUS to 25° Celsius and it should not be ALLOWED to COME into contact with water having a temperature of 35° Celsius.



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