Part 2. Product

2.1 Materials:

A. GFRC is a composite material consisting of Portland Cement, alkali resistant Cem-FIL AR glass fibers, water, fine aggregates and additives. When mixed in certain proportions and manufactured under controlled conditions with appropriate equipments, it achieves physical properties that allow it to be used for precise designs, natural stone finishes and especially those applications where weight is a significant factor in the design. This mixture produces a composite which has significant flexural, tensile and high impact strength; asbestos free.
B. Typical properties of raw materials:
a. Cement: Portland Cement ASTM C 150, Type I.
Portland Cement ASTM C 150, Type II.
White Portland Cement (Low Iron).
b. Glass Fiber: Cem-FIL AR Glass Fiber is a continuous, alkali resistant glass fiber filament with high durability in cement. The fiber composition lies within a critical region of the Na2O CaO ZrO2 SiO2 System.

Some typical properties of Cem-FIL AR Fiber are as follows:

- Single filament tensile strength 3.5 GN/m_
- Strand Tensile strength 1.7 GN/m_
- Young’s Modulus of Elasticity 72 GN/m_
- Specific Gravity 2.68
- Strain and breaking point (strand) 2.4%
- Filament Diameter 14 and 20 µ