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US 2014/0272369 A1Published application
Pervious concrete permeable grout
OwnerJonathan Todd Kinginventor
Life of this patent
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Abstract
A water pervious concrete surface is described that is formed of a water pervious layer of concrete having interconnected voids, and a water permeable grout within the voids in the pervious layer. The permeable grout is formed of sand particles bonded in an open matrix with a two-part epoxy resin.
Claims19
Permeable grout useful in filling the voids in pervious concrete comprising:
- a) sand;
- and
- b) a two-part epoxy resin binding said sand into a void matrix allowing water to pass through said grout.
A method of filling the void in pervious concrete to reduce the accumulation of debris in the voids while allowing the penetration of water through the voids comprising:
- a) forming a grout by mixing sand with a cross-linkable epoxy polymer and a cross-linking agent reactable with said polymer to form a cross-linked epoxy resin;
- and
- b) brushing said grout into said voids.
A water pervious concrete surface comprising:
- a) a water pervious layer of concrete having interconnected voids;
- and
- b) a water permeable grout within the voids in said concrete layer, said grout comprising sand particles bonded in an open matrix with a two-part epoxy resin.
Dependencies are inferred from the claim text.