Kossif modified polypropylene fiber, as a high polymer has
Strong chemical stability, no water absorption, strong acid and alkali resistance, does not occur
Chemical changes do not require changes in its design mix ratio to its condensation properties
No adverse effects.
1, improve crack resistance
Kossif fibers, which form a uniform, directional support system in the concrete,
The quantity is more than 8 million rods/m3, resulting in a kind of secondary strengthening
Effect, effectively prevent shrinkage segregation, settlement and other crack formation and
The development, after use proved the same use conditions, mixed with silk force fiber
The crack resistance of concrete/mortar is improved by nearly 70%.
2. Improve impermeability
The improvement of the crack resistance of concrete/mortar by Kosi fiber can be inhibited
The generation of continuous cracks inside the concrete greatly improves the concrete/mortar performance
Compactness, thus significantly improving its impermeability, the addition of Kossif fiber
Concrete/mortar implementation proved that its impermeability increased by more than 70%.
3, improve toughness, ductility, impact resistance and fatigue resistance
Kosi force fiber with its large elongation, good toughness, elastic mold
The advantage of a larger amount, by absorbing external forces in the concrete/mortar, avoids
Avoid stress concentration and improve its ability to withstand impact loads as well as fatigue loads
Force, thereby improving the plastic deformation capacity of concrete, flexural tensile strength
And flexural strength.
4, improve wear resistance, stripping resistance
The addition of Kosi fiber makes the concrete mortar form irregular inside
The disoriented support system. The binding force between the mixed materials is increased and improved
The cement matrix interface particles, sand and other media fall off.
5, improve freeze-thaw resistance
The addition of Kosi modified polypropylene fiber to concrete/mortar can introduce a small amount of air to act as an aerated concrete
This can compensate for the expansion/contraction caused by the freeze-thaw cycle, and some free water can also enter
These fine air bubbles reduce the early freeze-thaw damage of concrete/mortar.
Packaging: 0.9kg per bag, can be changed according to user requirements of the packaging form and specifications.
Product introduction
Modified polypropylene monofilament fiber is a special cement researched and produced by our company
Concrete/mortar crack and seepage resistant fiber, fiber added to the concrete, with
It has good dispersion, strong binding force with cement concrete matrix, and obvious protection
Crack, enhance impermeability, frost resistance, impact resistance and other advantages.
Scope of application
Defense engineering, tunnel shotcrete, tunnel segments, bridge engineering,
Subway projects, airport runways, water conservancy projects, top floors of buildings, internal and external walls,
Basement and other crack resistant seepage.
Performance parameter
The original
material
polypropylene
Breaking strength /Mpa>
500
Fibre type
monofilament
Initial modulus /Mpa>
5.0 x10
Fiber diameter /um
5-100.
Elongation at break /%
30
Density per cm
0.91
Alkali resistance (ultimate tensile retention)/%>
95
Melting point / ° C
165-170.
Size /mm
3.5.6.9.12.15.
19.25.30.40
Usage method
1, content: general surface crack and impermeability, add 0.9kg-1.2kg/m3 per cubic meter of cement concrete/mortar;
2, ratio and mixing: do not change the proportion of cement, gravel aggregate, cement, aggregate, additives and trunk
Add the material together and stir after adding water, appropriately extend the mixing time for 2-3 minutes to make it fully mixed, too
Cement and other aggregates can be mixed evenly, and water can be used in the construction site.
Precautions for use
1. The comprehensive performance index of fiber concrete/mortar is significantly higher than that of ordinary concrete.
But the fiber can not be used as a "reinforcement" to withstand the load, so it can not change the main project
The ratio of reinforcement to be stressed.
2. After adding fiber, the cohesion of concrete/mortar is enhanced, and the slump is slightly reduced.
But does not affect the normal construction. When the project really needs to improve the slump, it is necessary to appropriately increase the water reducer
The amount of water consumed shall not be increased separately.
3, after the addition of Kosili fiber, shall not change the original engineering structure design.
4, fiber concrete/mortar needs to be maintained in accordance with the relevant national engineering standards before it can be released
Exert its good effect.
5, this product is non-toxic, the ignition point is 580℃, so the use of high safety.