Q. Why AR Glass Fiber?

A. AR Glass Rich Fibers are resistant to the alkaline environment produced in the production of concrete. The Tensile Strength of AR Glass Rich Fiber is three to five times greater than that of polypropylene reinforcement fibers. AR Glass Rich Fibers have a specific gravity of 2.68. This places AR Glass Rich fiber between the aggregate (2.6 - 2.9) and the cement (3.15) to ensure a proper dispersion of the fiber that creates a network that bonds the materials together, rather than sinking to the bottom, or simply floating on the top. This is why AR Glass Rich Fiber provides a greater tensile strength, modulus of elasticity, and fiber content then both nylon fibers (1.14) and polypropylene (0.91).

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Q. Which AR Glass Rich Fibers are recommended for ready - mix concrete?

A. The type of AR Glass Rich Fiber to be used in ready - mixed concrete is determined by the application. HD Fibers perform very well as both a plastic shrinkage reinforcement and as a secondary reinforcement. While HP Fibers will also work in this context, it is also an excellent alternative to steel or synthetic fiber blends. HP used at higher rates provides post - first crack reinforcement where sustained loading after first is a consideration (C1018 & C1399 Applications).

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Q. Does Rich Fiber comply with ASTM Certification?

A. Rich Fiber complies with ASTM Certification under code ASTM 1116 - 03.

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Q. Are AR Glass Rich Fibers a proven reinforcement in concrete?

A. Under extensive testing being carried out by Twin Cities Testing Laboratory and Arizona State University, it has been determined that: HD and HP Fibers in ½" and ¾" lengths at a dosage level of one pound per cubic yard meet the requirements of ICBO ES AC32 for both plastic shrinkage reinforcement and secondary reinforcement. The compressive strength of HD and HP reinforced concrete exceeds that of plain concrete by approximately 15%.

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