【Daily Discussion】Utilities - Civil Engineering - 20200922
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For concrete prepared with ordinary Portland cement, the natural curing time must be no less than 7 days and nights. Is this sentence correct? We welcome active participation in discussions; the system offers generous rewards for answering questions from VIP members! ! !
Correct. The curing time also varies depending on the type of cement used in the concrete and the additives employed. When portland cement, ordinary portland cement, or slag portland cement is used, a curing time of not less than 7 days is generally required ； For those using pozzolanic silicate cement or fly ash silicate cement, the curing period is generally not less than 14 days ； For concrete to which retarders and impermeabilizers have been added, in addition to strictly controlling the amount of admixtures used, curing should be carried out for at least 14 days.
Correct. The curing time also varies depending on the type of cement used in the concrete and the additives employed. When portland cement, ordinary portland cement, or slag portland cement is used, a curing time of not less than 7 days is generally required ； For those using pozzolanic silicate cement or fly ash silicate cement, the curing period is generally not less than 14 days ； For concrete to which retarders and impermeabilizers have been added, in addition to strictly controlling the amount of admixtures used, curing should be carried out for at least 14 days