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| Important observations regarding concrete curing |
(1) Curing should be started earliest as possible.
(2) For the portion of concrete which is covered with form work, the curing should be started as soon as the form work is removed.
(3) On exposed surface, it should be started when concrete has sufficiently hardened such that it doesn’t get disturbed by curing.
(4) Ensure uninterrupted curing. If it is discontinued for any reason, the reaction of hydration will be stopped permanently. The partial hydration makes the capillary pores discontinuous and water can’t enter the concrete even if the curing is started again.
(5) High strength concrete should be cured at an early age.
(6) There is a widespread belief that humid climate is sufficient and curing is not required in rainy season.
(7) The person generally entrusted for curing is the most unskilled person. He doesn’t appreciate the importance of curing. In fact he believes that curing is a process of wastage of water time and money.
(8) It can’t be made a measurable item in the contract.
Therefore the best and practical method to ensure proper curing is the education of the person who is responsible for curing. Once he understands the importance of curing, he would certainly ensure it.
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