Download CM Compressometer CM-H Compressometer (Destructive)

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CM Compressometer
The CM compressometer is designed to conduct a strength test. It
measures the axial strain on a cylindrical concrete specimen placed in and
secured by screws to the inner chamber of this compressometer. It uses
a high-sensitivity strain gauge to measure the amount of strain. By
multiplying a measurement by a certain factor, the amount of strain can be
calculated as a numerical value. Unlike the case of ordinary strain
gauges, this compressometer is simple and easy to operate and can be
used repeatedly. However, it cannot be used to conduct breaking tests.
Concrete test piece
■Specifications
Type
Applicable specimen
CM-10
CM-12
CM-15
φ10×20cm
φ12.5×25cm
φ15×30cm
Gauge length
Capacity
100mm
120mm
150mm
φA
50000×10−6 strain
40000×10−6 strain
33000×10−6 strain
φC
Concrete test piece
350Ω
Recommended exciting voltage
Less than 2V
10V
Weight
2.5kg
Supplied cable : CT6-4V10/NP-STB
3.1kg
(φ6mm
0.3mm2
3.7kg
4-core shielded vinyl cable 10m)
■Dimensions
Type
A
B
C
D
CM-10
150
200
100
50
Gauge length
100
CM-12
185
250
125
62.5
125
CM-15
210
300
150
75
150
B
Allowable exciting voltage
D Gauge length D
Input/output resistance
CM-H Compressometer (Destructive)
The CM-10H compressometer is designed to conduct a breaking strength
test. It measures the compression strain on a cylindrical concrete
specimen (10 cm in diameter × 20 cm in length) made of generally used
concrete or high-strength concrete. The high-sensitivity strain gauge is
assembled into this compressometer to measure the amount of strain.
Both the high-sensitivity strain gauge and a cylindrical concrete specimen
are provided with coverings to protect them from damage. A cylindrical
concrete specimen can be set in the compressometer quickly and easily.
This compressometer allows the strain on a wet concrete specimen, taken
out right after underwater curing, to be measured. With this
compressometer linked with either the CLL-NA or CLH-MNA load meter, it
is also possible to measure the modulus of static elasticity.
(300)
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■Specifications
Capacity
Input/output resistance
100mm
20000×10−6 strain
350Ω
Recommended exciting voltage
Less than 2V
Allowable exciting voltage
10V
Weight
Supplied cable : CT6-4V3/SNP-STB (φ6mm
Concrete test piece
100
(Gauge length)
Gauge length
CM-10H
φ10×20cm
4.5
0.3mm2 4-core shielded vinyl cable
3m)
50
Type
Applicable specimen
23
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