Cement structure containing a waterproofing layer
US6489032B1 · kind B1 · utility
2Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1999 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Jan 5, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/503
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process of providing a waterproof concrete structure comprising the steps of(a) providing a layer of a concrete composition on a support;(b) spraying on to this concrete composition a waterproofing layer; and(c) applying to the waterproofing layer a further layer of a concrete composition;characterized in that the waterproofing layer is provided by a composition which comprises an aqueous dispersion of coalescable particles of thermoplastic polymer. The method is useful in the waterproofing of tunnel linings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.