Patent US5290356A successfully refreshed from Google Patents.
US5290356A
Expired / Lapsed
US
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Rubber crumb-reinforced cement concrete
Assignee: Tiremix Corp
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Filing: 1992-04-23
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Granted: 1994-03-01
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Expires: 2012-04-23
Abstract
Abstract Rubber crumb reinforced cement-concrete structures provide resistance to cracking, improve shock wave absorption, lower heat conductivity and improve the acoustical environment. The structures are comprised of cement-like materials having a predetermined proportion (from about 1% to about 30% by weight of cement) of recycled scrap rubber crumbs undirectionally aligned in the cross section of said structures.
Inventors
- 👤 Richard Frankowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:20
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; C; C04; C04B; C04B18/00; C04B18/04; C04B18/18; C04B18/20; C04B18/22; C04B28/00; C04B28/02; C04B35/00; C04B35/01; C04B35/10; C04B35/111; C04B35/117; C04B2111/00; C04B2111/00241; C04B2111/0037; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S52/00; Y10S52/07; Y10S52/09
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
49 words
A concrete/rubber product made from a mixture comprising: (a) 100 parts by weight of portland cement; (b) 1-30 parts by weight of rubber crumb; (c) 40-70 parts by weight of water; and (d) 100-200 parts by weight of material from the group consisting of sand, aggregate, and light aggregate.
Claim 2
Dependent Claim
49 words
A concrete/rubber product made from a mixture comprising: (a) 100 parts by weight of portland cement; (b) 1-30 parts by weight of rubber crumb; (c) 40-70 parts by weight of water; and (d) 100-200 parts by weight of material from the group consisting of sand, aggregate, and light aggregate.
Claim 3
Dependent Claim
42 words
The invention of claim 1, wherein: the concrete/rubber product is general purpose concrete; the amount of water is 40-50 parts by weight, and the material in part (d) is 100-200 parts by weight of sand and 200-400 parts by weight of aggregate.
Claim 4
Dependent Claim
24 words
The invention of claim 1, wherein: the concrete product is mortar, and the material in part (d) is 100-300 parts by weight of sand.
Claim 5
Dependent Claim
45 words
The invention of claim 1, wherein: the concrete product is cement board, the amount of rubber crumb is 15-30 parts by weight, the amount of water is 40-60 parts by weight, and the material in part (d) is 100-200 parts by weight of light aggregate.
Claim 6
Dependent Claim
49 words
A concrete/rubber product made from a mixture comprising: (a) 100 parts by weight of a material from the group consisting of alumina and portland cement; (b) 15-30 parts by weight of rubber crumb; (c) 40-60 parts by weight of water; and (d) 100-200 parts by weight of light aggregate.
Claim 7
Dependent Claim
49 words
A concrete/rubber product made from a mixture comprising: (a) 100 parts by weight of a material from the group consisting of alumina and portland cement; (b) 15-30 parts by weight of rubber crumb; (c) 40-60 parts by weight of water; and (d) 100-200 parts by weight of light aggregate.
Claim 8
Dependent Claim
12 words
The invention of claim 5, wherein: the concrete product is cement board.
Claim 9
Dependent Claim
13 words
The invention of claim 5, wherein: the material in part (a) is alumina.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-28 | 1997-08-30 | 1998-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-28 | 2001-08-30 | 2002-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-28 | 2005-08-30 | 2006-03-01 | $7700.00 | Window Closed / Lapsed |