FRP water stop threaded rod screws are made of glass fibre reinforced plastic (FRP). This material has the advantages of high strength, corrosion resistance, abrasion resistance and light weight. Compared with traditional metal water stop threaded rod screws, FRP material will not rust and can maintain good performance for a long time. In the field of building construction, the water stop threaded rod is a crucial component, and FRP water stop threaded rod screws are gradually emerging with their unique advantages. FRP waterstop screw is mainly used in basements, underground pipe corridors, sewage treatment plants and other concrete structure projects that need waterproofing. It can effectively stop the penetration of groundwater along the screw, ensure the waterproof performance of concrete structure, avoid leakage problems, and thus guarantee the stability and durability of the building.
Excellent corrosion resistance: able to be used for a long time in harsh environments such as humidity, acid and alkali, and not easily damaged.
Lightweight: lighter weight than metal screws, easy to transport and install.
High strength: sufficient strength to withstand the pressure of concrete pouring.
Good insulation: avoid electrochemical corrosion, improve the safety of the building.
The process of manufacturing FRP waterstop threaded rod screws mainly includes the following steps:
Mould preparation: making a precise mould according to the specification and size of the screw.
Fibre laying: lay the glass fibres inside the mould in a specific way to enhance the strength of the screw.
Resin Infusion: The formulated resin is injected into the mould to fully saturate the fibres.
Curing and moulding: The resin is cured by heating or natural curing to form a strong screw
Brand |
Weight |
Diameter(mm) |
Density |
Tensile strength |
Ultimate Tensile |
Elastic modulus |
Ultimate shear strength |
N/M |
g/m |
mm |
g/cm3 |
MPa |
KN |
GPa |
MPa |
M10 |
150 |
10 |
2.2 |
980 |
72 |
≥40 |
≥150 |
M12 |
210 |
12 |
2.1 |
870 |
99 |
FRP water stop threaded rod screws are widely used in all kinds of building structures that need waterproofing, such as basements, underground car parks, pools, underground tunnels and so on. It can effectively prevent water from penetrating through the screw part, ensuring that the concrete structure stays dry during long-term use and avoiding structural damage and corrosion caused by leakage. Taking basement as an example, the use of FRP waterstop screw can prevent the erosion of underground water to the basement, guarantee the dryness and comfort inside the basement, and provide a good environment for storing goods and personnel activities.