引用本文摘 要：通過優化養護劑組分，研制出有效保水率高、在新鮮混凝土面成膜快的高分子乳液型養護劑，室內對比研究了三種養護方式（標準養護、自然養護和養護劑養護）對混凝土強度、耐久性和塑性收縮、開裂的影響，并采用該養護劑在干旱風沙地區進行了工程應用。結果表明，與標準養護相比，養護劑養護下混凝土7d前強度不降低，56d強度僅降低約5%，90d自然碳化深度為0，氯離子滲透性略有增加；成膜養護劑能有效降低混凝土塑性收縮和開裂程度，用于干旱風沙地區混凝土養護具有明顯的技術經濟性能優勢。 Abstract: As a new type of curing method, spraying curing agent is being gradually applied in concrete engineering. In this paper，through the optimization of components, the concrete curing agent based on polymer emulsion with high moisture retention rate and fast film forming on fresh concrete surface is prepared. The effects of curing methods (i.e. standard curing, drying curing and curing with curing agent) on strength, durability and plastic shrinkage and cracking of concrete are studied, then the curing agent is applied in arid-sandy area. The results indicated that compared with standard curing, the strength of concrete with curing agent is not reduced before 7d, and only reduced by about 5% at the age of 56d, natural carbonation depth of concrete with curing agent is equal to zero at the age of 90d, but the chloride ion permeability of concrete slightly increased up to 30%. Besides, compared with other curing methods, curing agent can effectively reduce the plastic shrinkage and cracking of concrete, and has significantly technical and economical advantages in arid-sandy area.