Polyurea grouting material is a high-performance polymer single-liquid plugging grouting material with the characteristics of high solid content, no shrinkage, hydrophilic reaction, high tensile ductility, etc. It can effectively cover cracks and solve the leakage and re-leakage problems of structural cracks such as deformation joints, expansion joints, and joints. It is suitable for grouting and plugging leakage in cracks of all concrete structures such as housing construction, public buildings, underground projects, subways, tunnels, and pipe galleries. It is also suitable for grouting to stop leakage in structures with large vibrations and deformations, such as shield segments and post-casting belts.

The above are five different types of chemical injection grouting materials. When using these chemical grouting materials, they need to be operated together with high-pressure grouting machines and injection packers. The main function of grouting pumps and injection packers is to inject slurry into the formation or building under pressure to achieve the purpose of reinforcement, waterproofing, plugging leaks, etc.

Common grouting machines include single-liquid grouting machines and double-liquid grouting machines. Injection grouting packers also have various models, such as A8, A10, B8, etc., which are suitable for different engineering needs and environments.