掺外加剂的再生混凝土抗冻性能研究

Frost Resistance of Recycled Concrete with Antifreeze

旨在研究掺有防冻剂的再生混凝土的抗冻性能,即负温养护对掺有YJ-4型防冻剂的再生混凝土质量的影响,质量用抗压强度表示.同时研究了掺有YJ-4型防冻剂的再生混凝土在标准条件养护下的强度,以及抗冻融循环能力,并与未掺任何外加剂的再生混凝土进行了比较.

In this paper, the frost resistanee of recycled eoncrete with antifreeze and lhe effect on the quality when it was mainlained in sub-zero temperahtre were discussed. Its mechanical eapability was indicated by compressive strength. The compressive strength after being cured in standard condition for 28 days and the ability to resist the fi＇eezing - thay, ing cycles were studied as well. At last, comparison was made wilh the recycled conerete without any admixture.