关键词: 混凝土路面, 裂缝, 聚氨酯, 粘结强度

Abstract: This paper, on the basis of analy sing the study achievements at home and abroad, and grouting material at home, has selected polyurethane as grouting material for the crack of concrete pavement, and analysed that diluent, filling element and solidified state have influence on the binding strength.The experiment results show that the grouting material has binding strength more powerful, of better stability, of shorter solidified time, of simpler construction and cheaper price, and can be especially used in the moist surface.

Key words: concrete pavement, crack, polyurethane, binding strength