Arch top mold injection pipe RPC cement injection pipe

Description :

　　The injection molding slurry for lining arch crown is a high-performance material developed for preventive treatment of voids between tunnel lining and waterproof board. Grouting materials have characteristics such as slight expansion, high fluidity, early strength, and long non bleeding operation time. They not only play a role in filling voids, but also in compensating and repairing defects in secondary lining concrete, improving the overall quality of masonry concrete. According to the characteristics of the lining voids, the grouting material for the arch top of the lining has the advantages of easy filling and compaction, good stability, uniform reaction, avoiding compression and separation caused by severe thermal expansion and contraction, and easy construction. Grouting material not only plays a role in compacting voids, but also has good bonding strength with concrete, which can repair construction joints and concrete cold joints.

　　RPC grouting pipe is composed of ordinary Portland high-strength cement, quartz sand, ultra-fine active material, polycarboxylate superplasticizer, and high-strength steel wire mesh. It is a high-strength, high toughness, and high density prefabricated component produced by hydrothermal synthesis conditions with a water cement ratio. It can replace traditional metal or plastic grouting pipes and bond more firmly with tunnel lining concrete. It does not detach during grouting connection operation, which is conducive to the stable operation of grouting process.

AfterSalesService :

• Arch top injection pipe with mold