大体积混凝土抗裂性指标试验研究

Research on crack resistance of mass concrete

本文对影响大体积混凝土抗裂性的极限拉伸值、抗拉弹性模量、温度变形等几个主要因素进行了分析,得出大体积混凝土抗裂性指标,并将其应用于评价大体积混凝土抗裂性,结果与实际工程相符,可靠有效。为大体积混凝土的阶段性养护提供可靠的实验依据。

The main factors,including lim it ing extended value,elastic module and thermal deformation,which influenc on cr ack re sistance of mass concrete have been analyzed in this paper.We presented the criterion of crack resistance of the mass concrete and use d it to check the crack resistance of the mass concrete with experiments.After analyzing the rea sons responding for the sit-uations,we got an agreement result.The criterio n can provide us a lot of valid data of protecting the mass concrete in earlier various periods.