Concrete block and method of making same

Details Concrete block and method of making same Concrete block and method of making same

2004-04-15

2008-10-21

Marcantoni, Paul (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S727000, C106S823000, C524S004000

Reexamination Certificate

active

07438757

ABSTRACT:
A concrete building block containing Portland cement, a filler, water, and a quantity of particularly sized plastic particles, such as spent abrasive particles of a thermoset plastic. The associated method of producing such blocks eliminates the need of curing the blocks in a heated humidity controlled environment in order for the blocks to attain the required water content for hydration of the cement.

REFERENCES:
patent: 1633790 (1927-06-01), Lindstrom
patent: 4019919 (1977-04-01), DeSalvo
patent: 4058406 (1977-11-01), Raponi
patent: 4398960 (1983-08-01), Murray
patent: 4427818 (1984-01-01), Prusinski
patent: 2003/0084822 (2003-05-01), Barrow
Answer 20 of 36 Chem Abst on STN□□“Recycling of spent abrasive media in non-structural concrete”, Webster et al., Journal of Environ. Engineering (1996), 122(9), p. 840-849.□□

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