Asphalt Embedded Strain Gauge

Dear Sir,

The Strain Gauge has to be placed after the asphalt has harderned and a groove has to be cut ( Narrower better) and then it has to be embedded

Thanks

suresh( vsureshmail@yahoo.com)

You can bury strain gages in hot asphalt. Obviously the trick is not to bury them so deeply you limit the sensitivity. As to high temperatures,Omega manufactures many strain gages which would meet your requirements, especially those used in aircraft development. We used high temp strain gages on the wing leading edges of the Canadair (now Bombardier) Challenger CL 600 during certification flight testing. The anti ice system heated the leading edges with 300 degree F bleed air from the engines. We needed to measure the bending resistance and distortion produced by the rapid heating and cooling forces during actual flight conditions. These tests were conducted throughout the months of January and February in the Artic north of Canada. Failing to find snow in the warmest winter on record, the plane returned to Mojave California where it was greeted by freezing temperatures and 4 inches of snow. Once again validating Murphy's Law.