【摘要】 再生混凝土的研究意义重大,其抗冻性则是影响其应用的重要指标。主要通过冻融循环试验研究了不同粗骨料取代率的再生混凝土的抗冻性,从冻融循环过程中混凝土试件的表面现象、质量损失及相对动弹模量3个方面进行阐述。更多还原

【Abstract】 The research of recycled concrete are great significance,and it’s frost resistance is an important indicator that affects the application.Through the freezing-thawing cycle test,the frost resistance of the different replacement rate of recycled coarse aggregate is studied.Elaborating from three aspects of the freezing-thawing cycle,The surface of the concrete specimens phenomenon,the mass loss and relative the dynamic elastic modulus.The test results showed that the frost resistance of recycled aggregate concrete accord the requirements of the concrete specification in cold areas.更多还原