What are the reasons for the high strength of FRP gratings?
The strength of the FRP grating is very high。There are many raw materials used in the production of FRP gratings, including resin, fiberglass yarn, curing agent, color paste and so on. Which kind of raw material is determined by the strength of the FRP? The glass fiber is the skeleton supporting the FRP grating, which basically determines the strength of the FRP grating. This is an inorganic non-metallic material with excellent performance. It has many advantages, such as good insulation, heat resistance, good corrosion resistance and high mechanical strength.
FRP grating because it uses FRP fiber and resin, which adds some other substances, which makes it have great strength and toughness. Generally, it is heat-resistant, corrosion-resistant, and not easy to break. It can resist certain. pressure. The quality guaranteed FRP grating can be used for twenty years without any wear and tear, showing the strength. The tensile strength and compressive strength of the FRP grating are also very good. Then, what is the tensile strength of the FRP grating? The compressive strength of FRP and the interface state between the resin matrix and the fiber and the resin are very large. The relationship is well known. Without the support of the resin, the fiber will completely lose its ability to withstand compressive loads. Bubbles in the FRP, delamination and poor interface bonding will reduce the compressive strength of the FRP.
The impact strength of the FRP grating cover plate has strong anisotropy. The fiber orientation in the FRP grating cover plate and the FRP grating is layer-by-layer, so it is easy to cause when impacted in a direction perpendicular to the plane. Layering between layers. Therefore, the impact value in the vertical plane direction is significantly lower than the impact value parallel to the plane.