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The fiber is polypropylene

The fiber is polypropylene

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1.44 EUR
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Ukraine, Zhitomir
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10 years on Allbiz
Technical characteristics
  • Country of manufactureUkraine
  • TypePolypropylene fiber
Description
The fiber polypropylene, fibrovolokno, fibrin, is the effective reinforcing additive for concrete increasing strength and other quality indicators. D

Advantages of a polypropylene fiber
Reduces microplastic shrinkage and a treshchinoobrazovaniye in the course of concrete curing:
Increases ability of concrete to deformation without destruction during the critical period - 2-6 hours after laying, thereby reduce the size and quantity of cracks that promotes preservation of bigger internal durability of concrete;
At later stage when concrete hardened and begins to shrink, the polypropylene fiber connects edges of cracks and reduces risk of a break;
Reduces release of water by means of effective control of hydration, thereby, reducing internal loadings. Thanks to control of performance of water on a surface formation of cracks at plastic subsidence decreases.
Increases resistance of concrete to freezing/thawing:
The fiber polypropylene brings insignificant amount of air in concrete that allows free water to extend and contract in a freezing/thawing cycle;
The polypropylene fiber reduces the number of water channels in concrete, and as a result of decrease in permeability gives big resistance to frost penetration;
The fiber polypropylene controls movement of water in concrete, providing more effective hydration of cement, and increases durability on compression in the first day. Prevents a raising on a surface of cement and sand, resistance of concrete to influence of antiobledenyayushchy salts increases;
Increases the concrete resistance to blow:
The concrete containing a polypropylene fiber has the bigger resistance to blow and resistance to splitting in comparison with usual concrete is considerable, tests show 5-fold excess on this factor. The fiber polypropylene provides big protection against destruction of edges of connections in concrete plates of overlappings and combined reinforced concrete designs;
Increases resistance of concrete to attrition:
Resistance to attrition of concrete with a polypropylene fiber in 6 hours increases approximately by 20% and in general can be 60% higher. Ability of a fiber polypropylene to control movement of water in concrete mix reduces a possibility of a segregation of small particles of cement and sand that provides more effective hydration of cement and in combination with the best coupling of cement mortar gives stronger and durable surface.
Increases fire resistance of concrete:
The fiber polypropylene raises characteristics of fire resistance of concrete. Concrete with a polypropylene fiber is steadier against a bend after influence of temperature 600 ºС within 1 hour. Also increases resistance of concrete to splitting after impact of burning of hydrocarbon (2 hours at 1100 ºС).
The increased resistance to penetration of water and chemicals:
The fiber polypropylene reduces permeability and water absorption of concrete. It is reached due to reduction in concrete of quantity of openings from the acted water therefore water, chemicals and dirt are absorbed more slowly. The polypropylene fiber is steady against alkalis and the majority of the chemicals applied in productions. Concrete with polypropylene fibers is widely used in hydroconstructions, such as reservoirs, settlers for sewage, spillways, ports, docks, sea obstacles, and also concrete roads and bridges where the increased resistance to penetration of antiobledenyayushchy salts is especially important.
Polypropylene fiber - economic alternative to a steel grid:
The fiber polypropylene can be considered as economic alternative to the steel grid controlling formation of cracks. The fiber does not exert impact on concrete durability on a bend. The steel grid stretches and has some value only after concrete burst. As the alternative, a polypropylene fiber promote prevention of the microcracks which are formed in concrete in a plastic state.
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