Patent ID: 7670081

Claim:
A method of producing surface seeded exposed particulate concrete utilizing a material spraying device to enable spraying of particulate at distances greater than ten feet from a sprayer, the concrete generally covering a surface area greater than 10′×10′ and having a generally flat exposed particulate surface suitable for flooring applications, the method comprising: a) providing particulate having a mean size of about ⅛″; b) preparing a subgrade to a desired grade; c) pouring a concrete mixture over the subgrade; d) screeding the concrete mixture to a desired grade and forming a top surface thereof; e) finishing the top surface of the concrete mixture with a float to seal the top surface and disposing a quantity of cement/fines derived from the concrete mixture at the top surface of the concrete mixture to form an upper surface of cement/fines concrete paste; f) while the sprayer is remote from the upper surface to be sprayed, spraying the quantity of particulate through air upon the upper surface of cement/fines concrete paste greater than ten feet from the sprayer utilizing the material spraying device; g) distributing the provided particulate upon the upper surface of cement/fines concrete paste with the material spraying device; h) mixing the distributed particulate into the cement/fines concrete paste with a float to form an exposed surface of a depth of a mixture of surface concentrated particulate and cement/fines concrete paste; i) applying a surface retarder uniformly over the exposed surface of the surface concentrated particulate and cement/fines concrete paste; j) washing surface films from the exposed surface; k) curing the concrete mixture and paste to form a cured mixture and a cured paste; and l) washing the exposed surface to remove surface residue therefrom.