China Short Cuts Basalt Chopped Roving Fiber for Concrete Reinforcement

Concrete Reinforcement Basalt Chopped Fiber
What is Basalt Fiber?
The raw materials of basalt are selected, crushed, put into a smelting furnace at a high temperature of 1450ºC-1600ºC, then draw into the continuous fiber through a high-speed drawing machine with a 200-600 hol platinum-rhodium alloy bushing.
What is Basalt Chopped Fiber?
The chopped roving is mainly made of continuous basalt fiber through chopping machine, which could replace the commonly used lignin fiber, steel fiber, polyester fiber to mix with asphalt concrete, cement concrete, resin, plastics and rubber. The chopped roving will effectively increase the strength and performance of such mixtures.
Where the Chopped Basalt Fiber use for?
As an ideal substitute of lignin fiber and polyester fiber, basalt fiber could be applied to asphalt mixtures with different gradations, such as AC, SMA, SUP, PA and so on.
Why not use Fiberglass / Plastic / metal Grid?
Comparison of Basalt Fiber and Other Fibers

Fiber TypeTensile StrengthModulus of Elasticity ElongationMelting-pointHygroscopicityAdhesionResistance to Acid and AlkaliAging ResistanceBasalt Fiber2500-3500 Mpa90-110 Gpa3.2%1600 ºC<0.1%GoodExcellentExcellentSteel Fiber800-1000 Mpa170-190 Gpa4-5 %1100 ºC150%BadGeneralGoodLignin Fiber<300 Mpa30-40 Gpa15-20%<250 ºC212%GoodBadBadPolyester Fiber500 Mpa0-40 Gpa15-30%<250 ºC272%GeneralGoodBadPolypropylene Fiber700 Mpa30-40 Gpa8-12 %<250 ºC12-15%GeneralGoodBad

Comparison of Performance Parameters After Incorporation

Experimental ProjectsChopped Basalt Fiber For ConcreteChopped Basalt Fiber For MortarCrack Resistant and Anti-cracking Fiber(BF)Toughened and Reinforaced Fiber (BZ)Crack Resistant and Anti-cracking Fiber (BSF)Fracture Strength α/Mpa ≥120015001050Modulus of Elasticity α/Gpa ≥7.58.034Elongation at Breakα/%≤3.1Alkali resistance, Monofilament Retention Rate of Breaking Strength %≤75

What is the advantage of basalt fiber?
1.Bituminous concrete
Road Performance Advantage
Superior Renew-ability
The Asphalt mixture, which reinforced by basalt fiber, can be reused directly. This reinforcement is environmentally friendly and saves more energy..

1). The additive of basalt fiber into asphalt mixture could improve the fatigue resistance by 2-6 times.

2). Improve crack resistance at low temperature by 30% and rutting resistance by 40%.

3). The water resistance of the asphalt mixture is also improved significantly. All these prolong the lifespan of asphalt pavement to a great extent.
2.Cement Concrete Pavement
The compressive strength, shear strength, flexural strength, impermeability and frost resistance of basalt fiber reinforced cement concrete pavement are increased by 20%, 50%, 50% and 300 freeze-thaw cycles. The impact toughness and fatigue cycle times are increased by two times.
The basalt fiber reinforced cement could be used in pavement engineering, bridge deck pavement, airport runway, embankment and other cement concrete projects.