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Multi-Mix 80 MicroFibersPSI Multi-Mix 80 MicroFibers are high strength 100% virgin polypropylene synthetic fibers specifically engineered and manufactured for use as secondary reinforcement in ready mix concrete and cement-based building products. One pound (.45 kg) of Multi-Mix 80 MicroFiber contains over 80 million individual multifilament Fibers. Multi-Mix 80 MicroFibers protect concrete from the stresses which cause cracking when concrete is most vulnerable – during the first 24 hours after placement.
PSI Multi-Mix 80 MicroFibers meet the material specifications described in ASTM C-1116, Type III, Section 4.1.3 "Synthetic Fiber-Reinforced Concrete and Shotcrete." PSI Multi-Mix 80 MicroFibers are engineered to disperse uniformly throughout the entire concrete matrix, creating a very effective multi-dimensional secondary reinforcement system for the reduction of plastic shrinkage cracking. PSI Multi-Mix 80 MicroFibers create an internal support system, which results in more uniform bleeding. Uniform bleeding limits the formation of bleed water capillaries and discourages segregation and settlement of the concrete’s ingredients. PSI Multi-Mix 80 MicroFibers do not affect the chemical hydration of the cement and are compatable with all concrete mixes and admixtures. Typically, no mix design changes are required. PSI Multi-Mix 80 MicroFibers are chemically inert and are unaffected by the long-term moist and high alkaline environment of concrete. PSI Multi-Mix 80 MicroFibers will not rust, rot, corrode or absorb any water. How to Produce Quality Fiber Reinforced Concrete?
This is exactly what PSI Fibers has done. Developed by individuals with decades of experience in concrete, synthetic fiber reinforcement and fiber packaging technology, our unique PSI Fibers and BulletPAC bag design fill those needs precisely, and work it out to a system. A fiber reinforcement system so noticeably effective that nothing else has ever performed as well. Our high performance engineered fiber design allows for a very rapid and thorough distribution throughout the entire concrete matrix. Our proprietary BulletPAC bag design provides more actual mixing time for the fibers, which ultimately contributes to better performance and finishing of the concrete. PSI Fibers and our innovative packaging system simply and surely gives you the very best concrete fiber reinforcement available today. Function
BenefitsPSI Fibers provide an economical alternative system of secondary reinforcement when used for non-structural temperature and shrinkage crack reinforcement in hardened concrete. This alternative saves construction time and money by eliminating the purchase, storage, handling, cutting, placing and waste of welded wire fabric. PSI Fibers are always positioned in compliance with codes, automatically. PSI Fibers require no minimum amount of cover and are safe and easy to use. Applications include, but are not limited to: slabs on grade, composite decks, precast concrete products, sidewalks, driveways, thin overlays and toppings, barrier walls, stucco, slope paving, pools, tilt-up panels, water tanks, shotcrete and gunite applications. Application RateThe standard recommended application rate for PSI Multi-Mix 80 MicroFibers is .5 lbs per cubic yard / .3 kg per cubic meter of concrete added directly to the concrete mixing system before, during or after the batching of the other ingredients and mixed at the time and speed recommended by the mixer manufacturer (usually four to five minutes). Additional mixing does not adversely affect the distribution or the overall performance of our PSI Fibers. The addition of PSI Multi-Mix 80 MicroFibers at the recommended application rates to a given mix may appear to decrease the slump. The workability, however, will not be affected and additional water should not be added. Contact your local PSI Fiber Representative for alternate application rates used in specialty applications. Chemical and Physical Properties
Mix DesignsThe addition of PSI Multi-Mix 80 MicroFibers at the normal recommended application rate does not require any mix design changes. FinishingPSI Multi-Mix 80 MicroFiber reinforced concrete can be finished by any finishing technique. PSI Fibers do not affect the finishing characteristics of concrete. They are noncorrosive, alkaliproof and will not stain the concrete surfaces. PSI Fibers are compatible with power troweled, hand troweled, colored, stamped, dry shake and broom finished concrete. Minimize cracking and improve your concrete's long-term durability. Insist on PSI Fibers from your ready-mix supplier. A Major Improvement in Fibrous Concrete TechnologySee also: |
