Most structure is reinforced with carbon fiber reinfroced polymer fabric(high strength ,high modulus). Why don't we choose basalt fiber for structural strengthening?
1. Low tensile strength
We know that the tensile strength of carbon fiber can reach 3800MPa, equivalent to 10 times of steel, and the mechanical properties are stable. It is a new advanced material for structural reinforcement.
However, the strength of basalt fiber can not reach the requirement of building reinforcement, and it can be broken by hand.
2. Low elastic modulus
Elastic modulus is a "touchstone" for testing the properties of fiber materials, such as carbon fibers, with high elastic modulus, small deformation and excellent performance.
The modulus of elasticity of basalt fiber is very low, and the production process has not been finalized. It can not be used for structural reinforcement.
3. Alkali resistance is inferior to carbon fiber
Basalt fiber is a silicate fiber, and its alkali resistance is not as good as carbon fiber.
4. Durability is not strong
The weathering resistance of basalt fiber is poor. After 10 years, the material itself is basically the same as the soil slag. Reinforced with carbon fiber, life is more than 50 years.
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HM-20 est un tissu de fibre de carbone unidirectionnelle. Lorsque mis en place par superposition d’épaisseurs du tissu sur la résine d’imprégnation époxyde HM-180C3P, il forme un système de renforcement composite.
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