Performance and application of new sealants for cement concrete airport pavement

On the basis of analyzing the performance and application status of new sealants for cement concrete airport pavement,the characteristics and application effect of polyurethane,polysulfur and silicone sealants were analyzed comparatively by indoor experiments and scene tests,and restructured mechanism,performance superiority and application effect of new restructured polysulfur sealants were also analyzed.The results revealed that the new restructured polysulfur sealants have outstanding compositive performance and application effect,which can improve the waterproof and sealing effect of joints.