JOHN A LEPORE
Engineers in Delaware
License number
Pennsylvania PE008588E
Category
Engineers
Type
Professional Engineer
Address
Address
2
Delaware
Media, PA 19064
Media, PA 19064
Professional information
Particulate Rubber Included Concrete Compositions
US Patent:
5456751, Oct 10, 1995
Filed:
Nov 14, 1994
Appl. No.:
8/338895
Inventors:
Iraj Zandi - Radnor PA
John Lepore - Springfield PA
Hossein Rostami - Philadelphia PA
John Lepore - Springfield PA
Hossein Rostami - Philadelphia PA
Assignee:
Trustees of the University of Pennsylvania - Philadelphia PA
International Classification:
C04B 1822
US Classification:
106724
Abstract:
Concrete compositions are provided which contain particulate rubber, preferably recycled rubber from such sources as automobile tires, in amounts between about 0. 05 and about 20 percent by weight of the concrete composition. The concrete compositions further contain portland cement, water, and an aggregate material. Additional materials such as superplasticizers and fly ash can also be admixed with the concrete compositions.