UHMWPE fibers are used as fiber-reinforced composites (FRP) in the architecture industry. They are superior to steel because they are lightweight, high strength, and resistant to corrosion and fatigue. They have significant advantages over steel or other conventional reinforcement methods, including the following: high construction speed, little construction disturbance, quality assurance, low additional load, long service time, low overall cost, and no change in structure appearance and shape after reinforcement.
Previously, the most commonly used method for FRP reinforcement of concrete structures was the Surface Paste Method, which had many shortcomings. Recently, researchers proposed the Near Surface Mounted Method, which has the following major advantages compared with the surface pasting method: FRP is embedded in a protective concrete layer to prevent abrasion and impact. It is suitable for strengthening the negative areas of a bridge deck or continuous beam. The bonding surface area between FRP and concrete is increased, which improves the FRP’s utilization rate and reinforcement efficiency. It reduces the workload of the surface treatment of concrete components and increases the work efficiency. Adjacent components can be anchored; cement-based adhesives, which can be used in high temperature and high humidity reinforcement projects, can be used instead of epoxy resins, which are not suitable for those types of projects. In addition, the price of FRP tendons is more reasonable. In recent years, the NSM Method has become a new hot spot for studying FRP-reinforced concrete structures abroad. High-strength polyethylene in bridges, tunnels, houses, and other structural seismic reinforcement has very broad application prospects.
Moreover, ultra-high-molecular-weight polyethylene can be used to create trailers, silos, and chute linings for powdered substances such as coal, lime, cement, ore dust, salt, grains and more, so that less adhesion occurs. Cement composite materials can improve the toughness of cement to improve its impact resistance.