SE8902207D0 - METHOD OF INVOLVING THE SCALE OF THE FIELD AND SIMILAR FIELD CONSTRUCTION - Google Patents
METHOD OF INVOLVING THE SCALE OF THE FIELD AND SIMILAR FIELD CONSTRUCTIONInfo
- Publication number
- SE8902207D0 SE8902207D0 SE8902207A SE8902207A SE8902207D0 SE 8902207 D0 SE8902207 D0 SE 8902207D0 SE 8902207 A SE8902207 A SE 8902207A SE 8902207 A SE8902207 A SE 8902207A SE 8902207 D0 SE8902207 D0 SE 8902207D0
- Authority
- SE
- Sweden
- Prior art keywords
- field
- less
- involving
- scale
- filter layer
- Prior art date
Links
- 238000010276 construction Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 239000010410 layer Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 239000000758 substrate Substances 0.000 abstract 2
- 239000002344 surface layer Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Filtering Materials (AREA)
Abstract
The construction includes a substrate or other surface layer and also a filter layer having a pipe network (2,3). The pipe network (2,3) comprises numerous perforated multi-purpose pipes (3) to dry the field and to lead air through the field. - In the filter layer (4), the proportion of fine material or material having a granular size of less than 0.06 mm is less than 5 percent, most advantageously the proportion is less than 1 percent, so that the filter layer is highly permeable to air, and the substrate includes so much fine material that is less permeable to air.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI882930A FI882930A (en) | 1988-02-25 | 1988-06-20 | TJAELSMAELTNINGSFOERFARANDE FOER PLANER. |
| CA002018463A CA2018463C (en) | 1989-06-16 | 1990-06-07 | Apparatus and method for heating a playing field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8902207D0 true SE8902207D0 (en) | 1989-06-19 |
| SE8902207L SE8902207L (en) | 1989-12-21 |
Family
ID=25674157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8902207A SE8902207L (en) | 1988-06-20 | 1989-06-19 | METHOD OF INVOLVING THE SCALE OF THE FIELD AND SIMILAR FIELD CONSTRUCTION |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE8902207L (en) |
-
1989
- 1989-06-19 SE SE8902207A patent/SE8902207L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE8902207L (en) | 1989-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 8902207-3 |