Mortar setting time tester

Mortar setting time testerOperating procedures 1 Load the evenly mixed mortar into the test mold, level it about 10mm from the upper surface, place the test mold on the pressure gauge disc, and then turn the zero adjustment nut to adjust the pressure gauge pointer to zero. two Then use your hand to rotate the pressure rod vertically downwards and apply pressure. Within 10 seconds, insert the test needle into the mortar by 25mm. At this time, the pressure gauge dial shows the * measurement value. At the same time, adjust the adjusting nut to the highest position (flush with the upper end of the test needle seat), release the pressure rod, and the test needle will reset under the action of the spring force. Repeat every half hour. When the resistance value reaches 0.3MPa, change it to every 15 minutes for measurement until the resistance value reaches 0.7MPa. three Calculate the resistance value of mortar penetration. four After the experiment is completed, wipe the workbench panel, test needle, and contact surface clean; Remove the sample from the test mold, clean it thoroughly, and apply oil to prevent rust.Mortar setting time testerAfter the repair and maintenance test is completed, the workbench panel, test needles, and contact pads must be wiped clean. The workbench should not be subjected to heavy pressure (less than 10kg). Remove the sample from the test mold, clean it thoroughly and apply oil to prevent rust. Apply release agent before use. The sliding part should be regularly lubricated with oil to ensure the normal operation of the instrument. It should be placed in a quiet and non corrosive environment with a room temperature of around 20 ℃ and no medium

Main technical parameters

Detection range indication accuracy 0-100N

Resolution value 1% N

Zui large stroke 50mm

Test needle cross-sectional area 30mm2

Inner diameter and depth of trial mold Φ 140 * 75mm