Synthetic geomaterials with transponder technology

• US 7,872,580 B2
• Filed: 12/19/2006
• Issued: 01/18/2011
• Est. Priority Date: 12/19/2005
• Status: Expired due to Fees

• 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 Günter, Dorfner, Konrad Hubert
• Primary Examiner(s): PHAM, TOAN NGOC
• Application Number:
  US11/640,908
• Publication Number:
  US 20070138304A1
• Time in Patent Office: 1,491 Days
• Field of Search: 340/572.1, 340/572.8, 340/870.07, 340/870.16, 235/492, 235/376, 235/375, 737/68, 737/75, 737/79, 737/84
• US Class Current: 340/572.1
• 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. A synthetic geomaterial comprising

(1) at least one transponder for storing and for calling up data related to a product, a state, a condition, and/or a project;

and

(2) a web or grid of synthetic fibers selected from the group consisting of polypropylene, polyamide, polyvinyl alcohol and aramid,

wherein the transponder is applied to a surface of the web or grid of synthetic fibers.

2. The synthetic geomaterial as claimed in claim 1, wherein several transponders at defined spacings from one another are applied to the surface of the web or grid of synthetic fibers.

3. The synthetic geomaterial as claimed in claim 1, wherein the transponder is applied to the surface of the web or grid of synthetic fibers by adhesion.

4. The synthetic geomaterial as claimed in claim 1, wherein the transponder is stored with data related to traffic loading, the state or the condition of a road, construction materials or layer thickness.

5. The synthetic geomaterial as claimed in claim 1, wherein the web or grid of synthetic fibers is a mechanically strengthened geotextile of endless fibers of polypropylene.

6. The synthetic geomaterial as claimed in claim 1, wherein the transponder is a passive transponder.

7. The synthetic geomaterial as claimed in claim 6, wherein the transponder comprises a thick adhesive agent for application to the web or grid of synthetic fibers.

8. The synthetic geomaterial as claimed in claim 7, wherein the adhesive agent is an acrylate adhesive agent.

9. The synthetic geomaterial as claimed in claim 8, wherein the adhesive agent is capable of being employed in a temperature range from -40°

C. to 160°

C.

10. The synthetic geomaterial as claimed in claim 9, wherein the transponder comprises a protective layer.

11. The synthetic geomaterial as claimed in claim 10, wherein the protective layer comprises a casting compound.

12. The synthetic geomaterial as claimed in claim 11, wherein the casting compound cures to form a compound of medium hardness.

13. The synthetic geomaterial as claimed in claim 12, wherein the casting compound is reinforced by a subjacent sheeting layer of 50 μ

m thickness.

14. The synthetic geomaterial as claimed in claim 13, wherein the transponder comprises an antenna area suitable for reading ranges up to 1 m.

15. The synthetic geomaterial as claimed in claim 14, wherein the transponder comprises an antenna area suitable for reading ranges from 0.5 to 0.8 m.

16. The synthetic geomaterial as claimed in claim 1, wherein the transponder stores variable and invariable data.

17. The synthetic geomaterial as claimed in claim 1, wherein the web or grid of synthetic fibers is a geotextile, a geocomposite or a geogrid.

18. The synthetic geomaterial as claimed in claim 1, wherein the web or grid of synthetic fibers is woven, knitted, or in the form of monolithic strips.

19. The synthetic geomaterial as claimed in claim 1, wherein the synthetic geomaterial is laid over a bearing layer, and a binder is optionally applied to the synthetic geomaterial.

20. The synthetic geomaterial as claimed in claim 19, wherein the bearing layer is asphalt or concrete.