Research Progress and Application of Polyurethane Material in Hydraulic Engineering

After analysis of the research and application of polyurethane grouting materials,reinforcement materials,polyurethane joint material and polyurethane coatings all over the world in the past few years,the current research results of polyurethane materials in water conservancy project in our country and its application situation was introduced,which includes polyurea and PTN petroleum asphalt polyurethane joint materials. With the progress of supporting construction equipment,the development of fine chemicals,artificial intelligence and modeling software,new materials and construction methods with shorter curing time,higher bonding strength and better mechanical properties and durability will appear in the later period and be applied to the maintenance and reinforcement of new water conservancy projects and existing projects.