Cementitious paver

Abstract

A cementitious paver comprising a first layer, a second layer, and a third layer. The first layer comprises a surface A, and a surface B opposite said surface A. The first layer comprises a first layer cementitious material that is substantially porous to water. The second layer comprises a surface C and a surface D opposite said surface C. Surface C is engaged with surface B. The second layer comprises a second layer cementitious material that is substantially non-porous to water. The second layer comprises a hole in fluid communication with surface C and in fluid communication with said surface D. The third layer comprises a surface E and a surface F opposite said surface E. Surface E is engaged with surface D. The third layer comprises a third layer cementitious material that is substantially porous to water.

1 . A cementitious paver comprising:
 a first layer,
 said first layer comprising a surface A, and a surface B opposite said surface A, 
 said first layer comprising a first layer cementitious material, said first layer cementitious material being substantially porous to water; 
   a second layer,
 said second layer comprising a surface C and a surface D opposite said surface C, said surface C engaged with said surface B, 
 said second layer comprising a second layer cementitious material, said second layer cementitious material being substantially non-porous to water; 
 said second layer comprising a hole,
 said hole in fluid communication with said surface C, 
 said hole in fluid communication with said surface D; and 
 
   a third layer,
 said third layer comprising a surface E and a surface F opposite said surface E, said surface E engaged with said surface D, 
 said third layer comprising a third layer cementitious material, said third layer cementitious material being substantially porous to water. 
   
   
   
       2 . The cementitious paver of  claim 1 , wherein said third layer cementitious material is less porous to water than said first layer cementitious material. 
   
   
       3 . The cementitious paver of  claim 2  wherein said
 first layer cementitious material is adapted to filter water passing therethrough, or   said third layer cementitious material is adapted to filter water passing therethrough.   
   
   
       4 . The cementitious paver of  claim 3  wherein said hole is adapted to store water; 
   
   
       5 . The cementitious paver of  claim 4  wherein said first layer cementitious material comprises porous limestone aggregate. 
   
   
       6 . The cementitious paver of  claim 5  wherein said first layer cementitious material comprises a cement selected from the group consisting of Portland cement, calcium aluminate cements, and combinations thereof. 
   
   
       7 . The cementitious paver of  claim 6  wherein said first layer cementitious material comprises an aggregate of fiberglass. 
   
   
       8 . The cementitious paver of  claim 7  wherein said third layer cementitious material comprises,
 porous limestone aggregate, wherein said porous limestone aggregate is smaller than said porous limestone aggregate comprising the first layer cementitious material;   a cement selected from the group consisting of Portland cement, calcium aluminate cements, and combinations thereof; and   an aggregate of fiberglass.   
   
   
       9 . The cementitious paver of  claim 8  wherein said second layer comprises a plurality of holes. 
   
   
       10 . The cementitious paver of  claim 9  wherein said second layer comprises a plurality of holes,
 said holes in fluid communication with said surface C; and   said holes in fluid communication with said surface D.   
   
   
       11 . The cementitious paver of  claim 10  further comprising reinforcement materials. 
   
   
       12 . The cementitious paver of  claim 11  wherein said second layer comprises molded PVC. 
   
   
       13 . The cementitious paver of  claim 12  wherein said first layer comprises a cosmetically enhanced surface, wherein said cosmetically enhanced surface has been enhanced by a method selected from the group consisting of stamping, coloring, dyeing, pigmenting, or shaping. 
   
   
       14 . The cementitious paver of  claim 13  wherein said cosmetically enhanced surface has the appearance of slate, brick, natural stone, neutral concrete, marble, sandstone, or granite. 
   
   
       15 . A cementitious paver comprising:
 a bottom layer,
 said bottom layer comprising a top surface, 
 said bottom layer adapted to filter water therethrough, and 
 said bottom layer comprising a bottom layer concrete, said bottom layer concrete being porous to water; 
   a middle layer,
 said middle layer comprising a top surface and a bottom surface, said bottom surface engaged with the top surface of said bottom layer, 
 said middle layer comprising material adapted to substantially occlude the transmission of water therethrough, 
 said middle layer comprising a cavity in fluid communication with said top surface of said middle layer and said bottom surface of said middle layer, and 
 said cavity being adapted to store water; and 
   a top layer,
 said top layer comprising a bottom surface, said bottom surface engaged with the top surface of said middle layer, 
 said top layer adapted to filter water therethrough, and 
 said top layer comprising a top layer concrete that is more porous to water than said bottom layer concrete is porous to water. 
   
   
   
       16 . The cementitious paver of  claim 15 , wherein said bottom layer porous concrete comprises,
 porous limestone aggregate,   a cement selected from the group consisting of Portland cement, calcium aluminate cements, and combinations thereof; and   an aggregate of fiberglass.   
   
   
       17 . The cementitious paver of  claim 16 , wherein said top layer porous concrete comprises,
 porous limestone aggregate,   a cement selected from the group consisting of Portland cement, calcium aluminate cements, and combinations thereof; and   an aggregate of fiberglass.   
   
   
       18 . The cementitious paver of  claim 17 , wherein said middle layer comprises, a plurality of cavities in fluid communication with said top surface of said middle layer and said bottom surface of said middle layer, said cavities being adapted to store water. 
   
   
       19 . The cementitious paver of  claim 18  wherein said middle layer comprises molded PVC. 
   
   
       20 . The cementitious paver of  claim 12  wherein said top layer comprises a cosmetically enhanced surface,
 wherein said cosmetically enhanced surface has been enhanced by a method selected from the group consisting of stamping, coloring, dyeing, pigmenting, or shaping; and   wherein said cosmetically enhanced surface has the appearance of slate, brick, natural stone, neutral concrete, marble, sandstone, or granite.