Produkto funkcijos ir taikymas
Cementitious Grout is a specialized grouting material for post-tensioning prestressed engineering, offering distinct advantages over traditional cement slurry: It exhibits excellent fluidity with an initial flow time of 10-17 seconds, capable of filling even complex channels with a diameter of just 1 cm without bleeding or segregation. The slurry features controllable micro-expansion properties, achieving a post-hardening vertical expansion rate of 0.02%-0.5% that completely eliminates shrinkage voids. With a bonding strength exceeding 10 MPa, it firmly clamps prestressed tendons while blocking water vapor and harmful ions, resulting in over 50% enhanced corrosion resistance. Its compressive strength reaches up to 80 MPa, demonstrating strong load-sharing synergy with the structural matrix and reducing prestress loss by 15%-20%.
Its applications span highway/ironway bridges, large-span prestressed beams, nuclear power plant shells, and hydraulic aqueducts. It is also extensively used for grouting repairs of aging prestressed structures, serving as the core material that ensures over 30 years of maintenance-free service for prestressed structures.
