What does the glass wire add to the cement?
In the cement board plus glass fiber to improve the flexural strength of compressive strength, will not be easy to break
In order to increase the flexibility of cement components. After the cement is condensed, although the hardness is high, but toughness is insufficient, fragile and crackible, especially thin and thin strip type components, without glass, even the operation is a problem. The addition of glass to the microstructure of the cement can be pulled together, greatly increasing the impact resistance and bending resistance of components.
The effect of adding glass cement can not only improve the alkali resistance of glass fiber, but also reduce the erosion of glass fiber. It is an early strength, high strength, low alkali, impermeability, corrosion resistance, freeze-thaw resistance, Micro-expansion and contraction, negative temperature construction, coloring and other properties in one, can inhibit the alkali - aggregate reaction of the 21st century new cement. After testing and calculation, the durability of alkali glass fiber in the composite of Portland cement is one year, and the composite alkali-resistant fiberglass fiber is 17 years. The glass fiber cement is 52 years, and the composite alkali-resistant glass fiber is 155 years.
