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Carlson Strain Meter
A device which can be embedded in concrete to reveal the internal deformations.
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It responds to any change in dimension of the concrete due to stress, creep, temperature change, moisture change or chemical growth. The main purpose of the strain meter is to determine stress indirectly. Quick changes in stress are revealed simply by multiplying the measured strain by the modulus of elasticity. But for stress which develops over a long period of time, account must be taken for changes in modulus of elasticity and of deformations due to creep and to all causes other than stress.
Features:
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The standard strain meter may be embedded in concrete or attached to a surface with saddle mounts. |
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The standard comes in three lengths from 20cm to 51cm and the mini, for embedment where small size is essential, in three lengths from 10cm to 20cm. |
