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Polyacrylonitrile fiber
Is my company developed, together with the domestic famous scientific research units for the Chinese market, a specially used in the asphalt concrete or cement concrete strengthen the anti-cracking effect of the new reinforced fiber, it is also called the acrylic fiber, consists of 100% polyacrylonitrile resin through special process of synthetic fiber.
As the secondary reinforcement of concrete material, polyacrylonitrile fibers can obviously improve the toughness of concrete and shock resistance, and effectively prevent the emergence and development of crack and improve permeability resistance, frost resistance of concrete durability performance.In addition as strengthen the industrial fiber asphalt concrete product, it not only can greatly improve the asphalt surface caking property, high temperature stability, fatigue durability, and has low temperature anti-cracking performance and to prevent reflection crack.Effectively improve the tensile, shear and compressive strength and impact strength.Its huge role in concrete and use prospect already more and more known and accepted by engineering.
performance parameter
size |
3mm-40mm |
specific gravity |
0.91 |
melting point |
160-170℃ |
Fire point |
590℃ |
Water absorption |
0.01-0.02 |
thermal conductivity |
low |
electrical conductivity |
low |
acidic and alkali resistances |
top |
resistance to aging |
fine |
Tensile Strength |
>650Mpa |
Modulus of Elasticity |
>3700Mpa |
Areas of application:
High performance concrete road pavement, bridge panel, pavement, rockfill dam panel, such as seismic explosion-proof cement concrete engineering
Highway, municipal road, airport road, bridge deck pavement, toll station and other high-grade asphalt pavement engineering
Directions for use:
A, application proportion
1, the dosage of cement concrete
(1), general per cubic meter of concrete fiber dosage is 0.5 to 0.5 kg;
(2), according to the variation of sand, stone, cement dosage and the project against the requirements of the crack, can be appropriately adjust the fiber content, the highest content of 1.5 kg/m3.
Suggestion: different aggregate grain size matching mixing effects is very big, so choose good grading as soon as possible.
2, the dosage of asphalt concrete
Content can be reference to asphalt pavement special polyester!
Second, the construction process
In the project of the cement mortar/concrete construction technology can be reference to polypropylene fiber;
In the project of the asphalt concrete construction technology can be reference to polyester fiber.
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