Synthetic geomaterials with transponder technology

• US 20070138304A1
• Filed: 12/19/2006
• Published: 06/21/2007
• Est. Priority Date: 12/19/2005
• Status: Active Grant

• Current Assignee: Rainer Lugmayr, SCHREINER GROUP GMBH & CO. KG
• Original Assignee: TenCate Geosynthetics Austria GmbH (Koninklijke Ten Cate NV), SCHREINER GROUP GMBH & CO. KG
• Inventors: Lugmayr, Rainer, Dorfner, Konrad
• Granted Patent: US 7,872,580 B2
• Time in Patent Office: Days
• US Class Current: 235/492
• CPC Class Codes: E01C 11/16 Reinforcements as anchoring elements between layers E01C7/145, E01C7/185, E01C7/325 ; for building in general E04C
• CPC Class Codes: E02D 29/0241 the retention means being reinforced earth elements

Abstract

Synthetic geomaterials, such as geotextiles, geocomposites or geogrids (woven, knitted or of monolithic strips), characterized in that the synthetic geomaterial comprises at least one transponder applied thereon for storing and for calling up data related to product and/or state and condition and/or project.

Claims

1. Synthetic geomaterials, such as geotextiles, wherein in that the synthetic geomaterial comprises at least one transponder applied thereon for storing and for calling up data related to product and/or state and condition and/or project.

2. Synthetic geomaterials as claimed in claim 1, wherein several transponders at defined spacings from one another are employed.

3. Synthetic geomaterials as claimed in claim 1, wherein the connection of the transponder with the synthetic geomaterial takes place by adhesion.

4. Synthetic geomaterials as claimed in claim 1, wherein on the transponder, are stored data regarding traffic loading, road state and condition, utilized construction materials and, layer thicknesses.

5. Synthetic geomaterials as claimed in claim 1, wherein a mechanically strengthened geotextile of endless fibers of polypropylene is utilized.

6. Synthetic geomaterial as claimed in claim 1, wherein a geocomposite is utilized comprised of mechanically strengthened fibrous web material comprised of endless filaments of polypropylene, polyester, polyvinyl alcohol (PVA), polyethylene (PE), polyamide (PA), aramid, basalt, carbon and glass fibers as reinforcement.

7. Synthetic geomaterial as claimed in claim 1, wherein a geogrid is utilized comprised of coated or uncoated fibers.

8. Synthetic geomaterial as claimed in claim 1, wherein, as the transponder, a passive transponder is utilized.

9. Synthetic geomaterial as claimed in claim 8, wherein the transponder comprises a thick adhesive agent to adhering to geotextile.

10. Synthetic geomaterial as claimed in claim 9, wherein the adhesive agent is an acrylate adhesive agent.

11. Synthetic geomaterial as claimed in claim 10, wherein the adhesive agent is capable of being employed in a temperature range from −

40°

C. to 160°

C.

12. Synthetic geomaterial as claimed in claim 11, wherein the transponder includes a protective layer.

13. Synthetic geomaterial as claimed in claim 12, wherein the protective layer is comprised of a casting compound.

14. Synthetic geomaterial as claimed in claim 13, wherein the casting compound cures to form a compound of medium hardness.

15. Synthetic geomaterial as claimed in claim 14, wherein the casting compound is reinforced by a subjacent sheeting layer of 50 μ

m thickness.

16. Synthetic geomaterial as claimed in claim 15, wherein the transponder has an antenna area suitable for reading ranges up to 1 m.

17. Synthetic geomaterial as claimed in claim 16, wherein the passive transponder has an antenna area suitable for reading ranges from 0.5 to 0.8 m.

18. Synthetic geomaterial as claimed in claim 1, wherein the transponder comprises a store for variable and invariable data.

19. Synthetic geomaterials according to claim 1 which are geotextiles, geocomposites or geogrids.

20. Synthetic geomaterials according to claim 1 which are woven, knitted or in the form of monolithic strips.