Vertical mortar shrinkage and expansion meter Mortar shrinkage and expansion meter Mortar shrinkage and expansion rate measuring instrument

.>Vertical mortar shrinkage and expansion meter
.>&< c=>Mortar shrinkage and expansion meter< c=>Mortar shrinkage and expansion rate measuring instrument
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.>< c=>1. Overview of mortar shrinkage and expansion meter:
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The .> vertical mortar shrinkage and expansion meter is used to measure the shrinkage and expansion deformation of mortar to determine its shrinkage coefficient and expansion parameters.
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.>< c=>2. Mortar shrinkage and expansion meter
.>< c=>Main technical parameters
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.>< c=>Standard rod length
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.>< c=>Standard rod expansion coefficient&/℃
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.>< c=>Displacement meter accuracy.
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.>< c=>Displacement measurement range
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.>< c=>Minimum scale value of dial indicator: .
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.>< c=>Percent Table maximum range:
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.>< c=>Measurement range: ~
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.> < c=>Probe ball hole radius: R=
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.>< c=>Standard rod base length:
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.>< c=>Outline dimensions&
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.>< c=>3.
.>< c=> How to use the mortar shrinkage and expansion meter
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.>: First place the standard rod on the workbench and turn the adjusting screw to make it approximately vertical.
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.>. Place the measuring frame on the top of the standard rod, adjust the screw and nut, and align the dial indicator with the zero position (or note the scale of the dial indicator).
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.>. Wipe both ends of the prepared and maintained specimen, then place it on the workbench, then put the measurement frame on the specimen, and move the frame left and right to make the test The piece is in accurate contact with the measuring head of the measuring frame. At this point, the reading can be started and the scale value on the dial is recorded.
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.> If the experiment is not carried out continuously or the experiment lasts for a long time, the measurement frame must be calibrated on the standard rod before testing.
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.>< c=>IV.
.>< c=>Precautions for using the mortar shrinkage and expansion meter
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.>When using it , avoid direct contact with the standard rod with your hands, and hold the outer jacket part to prevent the standard rod from being affected by human hand temperature.
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.>After using the instrument, the measuring head of the measuring frame and the dial indicator should be wiped clean and coated with clock oil. During the test, the measuring head of the dial indicator should be Contact the test piece slowly and smoothly. No impact or collision is allowed. It is strictly forbidden to push the dial indicator rod past the maximum range to avoid affecting the sensitivity and service life of the meter.
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