Cellulose fiber is a kind of short fiber with high strength and fine denier. It is extracted from special plants and has natural hydrophilicity. In concrete, it has good affinity with cement and other hydrates, and can form better bond with concrete. Because of its short length and small diameter, the fiber has larger distribution in unit volume, which improves the crack resistance of concrete.
In the process of concrete curing, the loss caused by ettringite formation and the cracking caused by hydration heat and temperature will occur. Because cellulose fiber can avoid bleeding and segregation, it can retard the setting and keep water, so as to improve the strength of concrete.
Application :
Water conservancy projects: Zhangba, aqueduct, canal, water affairs, etc
: bridge, tunnel, ballastless track, etc;
Industrial and civil buildings: Industrial and civil buildings, etc
Others: highway, energy engineering, etc.
Ocean Engineering: cross sea bridge, port wharf, etc;
Underground structure engineering: underground building;
The main functions are as follows
Crack resistance of concrete
Improvement of impermeability of concrete
On the improvement of the freeze-thaw resistance of concrete
Improve the impact resistance and toughness of concrete
Improvement of concrete durability
Improvement of high temperature resistance of concrete
usage:
1、 Mix design
According to the national or industrial standards, the mix proportion of ordinary concrete is designed. Cellulose fiber is used as an additional component. According to the design dosage. There is no need to adjust the concrete mix proportion.
2、 Site, mixing plant mixing
The mixing of fiber concrete should follow the following principles:
1. Fiber should be added together with coarse aggregate;
2. It is suggested that the mixing time should be prolonged by 40-60s
3、 Transportation, pouring and maintenance
1. Adopt the same transportation method as ordinary concrete;
2. The pouring method is the same as that of ordinary concrete;
3. The curing method is the same as that of ordinary concrete. The curing of special projects and structures shall comply with the relevant specifications. The use of cellulose fibers. There is no need to change the concrete mix proportion and site construction technology. It is simple and convenient to use; according to the field use situation. The company will provide timely and accurate technical support.
