摘要
The characteristics of surface appearances,mass loss,relative dynamic modulus of elasticity and strength loss of different recycled aggregate concretes(RAC) exposed to freeze-thaw cycles were analyzed.It was found that the freeze-thaw resistance of RAC could be determined by the recycled aggregate compositions and admixtures.Both the saturation degree and the air void structure were the key factors influencing the freeze-thaw damage on concrete.Some major proposed freeze-thaw deterioration mechanisms were utilized to interpret the freeze-thaw damage on recycled aggregate concrete.Meanwhile,some potential measures to enhance the freeze-thaw resistance of concrete were summarized and discussed.
作者
栾皓翔
吴瑾
PAN Jiayu
LUAN Haoxiang;WU Jin;PAN Jiayu(Department of Civil Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;College of Civil and Architecture,Guangxi University of Science and Technology,Liuzhou 545006,China;Jiangsu Huangjiang Construction Group Co.,Ltd.,Yangzhou 225200,China)
基金
Funded by the National Key Research and Development Program of China during the“13th Five-Year Plan”(No.2018 YFD1101001)。
