Concrete doesn't have to be heavier to be stronger.
If lightweight concrete is your goal, you're looking to leave metal reinforcement behind.
You want a product with comparable strength, but a low density.
At NYCON we offer any of our PVA fibers.These products have been tested to significantly increase compressive and flexural strength of a concrete mix with only a minimal increase in weight (1.3 Specific Gravity).
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RMS702 by Nycon are ultra fine PVA fibers (Polyvinyl Alcohol) for use in creating fiber-reinforced concrete (FRC). These fibers are commonly used in very thin applications where moisture and ductility are important. RECS7's small denier means your concrete can contain more fibers per in3. At 5 Denier (24 microns) filament diameter, it works very well with material flow allowing for ease in extrusion. These PVA fibers bond on a molecular level (hydrogen bonding) within concrete, creating a multi-dimensional network of tensile (240 ksi (1600 MPa) ) and flexural strength.