Hot Weather Concreting
Concrete should not be mixed or placed when the temperature of the air curtain on the site is 40 ° C or more, unless the contractor has demonstrated special measures to ensure that the concrete is placed successfully compacted and hardened. The temperature of the fresh concrete shall not exceed 32 ° C, unless it is shown that at a higher than the strength and durability of concrete structures temperature is not compromised. The building will remain in the shade for at least 4 hours before concreting. All metal frame, concrete or other material of high thermal capacity is cooled with water before casting the concrete against them. Only water that meets the requirements of mixing water is used for washing and cooling of forms, etc.
