Aggregate alkali activity ratio long-term "Usage" - Database & Sql Blog Articles

Test - lowercase jpg

Kaixin micro test

Test probe P100-M3

Supply 0805 red light genuine goods long-term spot quality assurance

The aggregate alkali activity ratio meter is a measure of the change in the length of the cement mortar test piece to identify whether the expansion caused by the reaction between the alkali and the active aggregate in the cement is potentially dangerous. The instrument implements the latest standard requirements, selects high-precision intelligent instrument, has the advantages of simple operation and accurate experimental data, and enjoys independent intellectual property rights.

The length meter is 1,

hundred

Sub-table 2, upper probe 3,

Column

4. The lower probe 5 is composed of a standard rod 6, a base, and the like. It has the advantages of convenient use, high measurement accuracy, fast speed and clear reading. In order to meet the user's requirements, the bracket adopts a V-groove type, and the upper and lower probes adopt a flat probe. This method improves the measurement accuracy and accuracy and is available for testing and testing by users.

Instructions

1. Place the long gauge on a flat work surface, and then place the standard rod inside and outside the V-groove and the upper and lower probes to adjust the “0” position and the thousand on the dial indicator dial. The sub-meter refers to the alignment (the engraved position is the 0 o'clock position, and the 0 position is calibrated before each use).

2. Wipe the tested object (the end of the standard test piece with the label pointing up and outward), gently put it into the V-groove and the upper and lower probes of the long instrument bracket, and observe the dial gauge reading.

3. When measuring the reading of the sample, first read the value indicated by the small finger in the meter, then read the value indicated by the large pointer, and measure the black value of the outer ring of the large dial when the sample is added. The red value (such as the dial gauge table refers to between 1 and 2 grids, the large gauge refers to the scale of 86, should be read as 1.068mm; and the small gauge refers to between 0-1 grid, large The needle refers to the scale of 68, which should be read as 0.068mm; and if the base length is 158mm, the small gauge of the long gauge dial is marked on the 1st grid, the large gauge is at the “0” point, and the test specimen is small. The hands are between 1-2 squares, the large hands are on the scale of 56 and should be read as 158.056mm; if the small hands are between 0-1, the large hands should be read on the 156 and red 44 numbers. 157.956mm or 158mm minus 0.044mm).

4, the length meter is a kind of precision measuring instrument, so it must be handled gently during use, keep it clean, do not collide, but can not be dismantled at will, so as not to affect the measurement accuracy, after the long meter is used up, Wipe it clean and keep it in the box for future use.