US 7,575,393 B2
Cementitious porous pavement
John J. Sansalone, Baton Rouge, La. (US)
Assigned to Unit Process Technologies, LLC, Gainesville, Fla. (US)
Filed on May 10, 2004, as Appl. No. 10/842,328.
Application 10/842328 is a division of application No. 09/916171, filed on Jul. 26, 2001, granted, now 6,767,160.
Application 09/916171 is a division of application No. 09/714366, filed on Nov. 16, 2000, granted, now 6,468,942.
Prior Publication US 2004/0208697 A1, Oct. 21, 2004
Int. Cl. E01C 9/00 (2006.01)
U.S. Cl. 404—71 22 Claims
OG exemplary drawing
 
1. A porous pavement comprising a cementitious pavement material having a hydraulic conductivity greater than 0.0001 cm/sec and an amphoteric compound-bonded to said porous pavement such that waterborne constituents contained in fluids flowing through said pavement are captured by said amphoteric compound.