Roadway and method of construction
US4909662A · kind A · utility
7Cited by
23References
23Claims
0Family size
Inventor
Key dates
| Filing date | Jan 13, 1989 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Jan 13, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C11/226
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roadway is shown as being formed of various strata or layers starting with a lowermost bed layer or stratum of compacted earth carrying a layer or stratum of compacted dry concrete mix; a layer of moisture impervious material covers the top of the stratum of dry concrete mix; a roadway pavement of wet concrete mix is carried atop the moisture impervious material; and air passages are formed through the roadway pavement as to be situated transversely thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.