The release of a moulded concrete body from the mould can be improved by applying to the mould an effective amount of a concrete release composition comprising one or more oily esters of aliphatic carboxylic acids with mono- or dihydric alcohols, with a melting point of at the most 35°C, the total number of carbon atoms in the esters being 8-46, in an amount of 26-100% by weight, calculated on the total composition, optionally in admixture with other additives such as mineral oils, vegetable oils, glycols, glycol ethers, alkanols, emulsifiers and/or water.
在模具上涂抹有效量的混凝土脱模组合物,可改善模制混凝土体的脱模效果,该组合物由一种或多种脂肪族
羧酸与一元醇或二元醇的油性酯组成,熔点不超过 35°C、酯中的碳原子总数为 8-46,重量百分比为 26-100%,以总成分计算,可与其他添加剂如矿物油、植物油、
乙二醇、
乙二醇醚、烷醇、
乳化剂和/或
水混合使用。