Concrete-embedded Strain Gages
The KMC series gages are designed to measure self-shrinkage and self-stress of cemented materials. They enable measurement of the self-shrinkage and high-fluidity concrete immediately after placing. They are also used effectively to check for cracks of cemented materials. Usually, a T-type thermocouple is installed near the gage, while the KMC series gages of H4 type do not require such the installation since they are equipped with a built-in thermocouple.
|Materials Resistive element||CuNi alloy wire|
|Operating temperature in combination with major adhesives after curing (°C)||Embedment: normal temperature to 70ºC|
|Operating temperature in combination with major leadwire cables (°C)||Vinyl-coated flat 3-wire cable: Normal temperature to 70ºC|
|Applicable linear expansion coefficients (×10-6/℃)||-|
|Strain limits at normal temp. (approx. %)||0.3|
|Fatigue lives at normal temp. (times)||-|