Evaluation of methods and materials used to attach strain gages to polymer grids for high strain conditions.
-
1992-12-01
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:this report concerns the attachment of strain gages to polymer soil reinforcement grids (geogrids) for high elongation measurements, i.e. 5% and higher. Existing methods of attaching strain gages to geogrids are not suited for measurement of these high strains. Therefore, a research study was initiated to develop practical and repeatable procedures for attaching strain gages to geogrids to monitor large strains.
The study involves examination of the factors which can affect the gage-geogrid bond during laboratory unconfined extension tests. Samples of different types of geogrids instrumented with strain gages are pulled at a constant rate and the deformations are measured. Detailed attachment procedures are developed and specific recommendations for strain gage and coating selection are given for two common types of geogrid.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type: