Use of E-glass fibers to reduce plastic shrinkage cracks in concrete
AssigneePPG Industries Ohio, Inc.
InventorVedagiri Velpari
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Abstract
The present invention provides concrete having improved plastic shrinkage crack resistance, comprising: concrete; and non-alkaline resistant glass fibers. The present invention also provides a method of reducing plastic shrinkage cracks in concrete, comprising the steps of: combining cement, aggregate, sand, and water to form concrete; adding a desired amount of non-alkaline resistant glass fibers to the concrete; and mixing the concrete and glass fibers to disperse the glass fibers uniformly throughout the concrete, wherein the glass fibers reduce the amount of plastic shrinkage cracks of the concrete as compared to non-fiber reinforced concrete.
Claims23
Concrete having improved plastic shrinkage crack resistance, consisting essentially of:
- concrete;
- and,
- non-alkaline resistant glass fibers in an amount effective to reduce plastic shrinkage cracks as compared to a non-fiber reinforced concrete, wherein the glass fibers are susceptible to alkaline attack in the concrete.
A method of reducing plastic shrinkage cracks in concrete, comprising:
- obtaining concrete;
- and
- dispersing non-alkaline resistant glass fibers in the concrete, wherein the glass fibers comprise between 0.025 and 0.2 percent by volume of the concrete and wherein the resulting glass fiber reinforced concrete has a reduced amount of plastic shrinkage cracks as compared to non-fiber reinforced concrete.
Concrete having improved plastic shrinkage crack resistance, comprising:
- concrete;
- and
- non-alkaline resistant glass fibers, wherein the glass fibers comprise between 0.025 and 0.2 percent by volume of the concrete.
Dependencies are inferred from the claim text.