This kind of special organic high-performance fiber is added into cement mortar to make a kind of bending material with light weight and more durability. This kind of fiber reinforced material can make the cement brittle material turn into a material with better toughness. It will bend rather than fracture under great pressure, which is often called ultra-high toughness cement-based composite (ECC).
The development of special fiber is very important in the preparation of ultra-high toughness cement-based composites. In recent years, scientific research workers and related enterprises in China have paid a lot of wisdom and hard work, and have made a good start in fiber development and engineering application. Compared with ordinary fiber-reinforced cement, ultra-high toughness cement-based composites have the following characteristics: using cement matrix with high compressive strength and high density; increasing the volume ratio of fiber or using finer fiber to increase the number of fiber per unit volume of composites; strengthening the interface bonding between fiber and cement matrix to reduce the fiber density during the loading process of composites The composite has excellent comprehensive properties such as high compressive strength, high tensile strength, high flexural strength, high ductility, high toughness, high impact resistance and high fatigue resistance.
ARH950 polypropylene macro fiber produced by our company has good performance in ECC. The fiber is made of polypropylene after modification and deep processing. Its strength can reach 950-1050Mpa and modulus is over 10G. It is the best choice for UHPC and ECC.
