Latex-modified, pretensioned and prestressed structures having enhanced structural load bearing capacity
US4151145A · kind A · utility
5Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1977 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Nov 22, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B28/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a latex-modified, pretensioned, and prestressed concrete structure having at least about a 50% reduction in bond transfer length as compared to a structure not modified by a latex. Such structure is composed of a cured concrete composition comprising a mixture of (1) portland cement, (2) mineral aggregate, and (3) a vinylidene chloride polymer latex, said latex being present in an amount sufficient to provide from about 5 to about 25 percent by weight of polymer solids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.