How to accurately grasp the condensation time of cement pipes
The coagulation time of the cement pipe has a great influence on the function, and accurately grasping the coagulation time of the cement product can greatly help improve the function. The Henan cement pipe manufacturer will tell you about the condensation time of each stage of the cement pipe. Please see the detailed introduction below.
When the cement pipe is near the initial setting, measure it every 5 minutes; when it is near the final setting, measure it every 15 minutes, and grasp the time that the condensation time may appear twice. When it is near the initial setting or final setting, shorten Distance measured twice to avoid missing "real" time. When the initial or final coagulation is reached, the test should be repeated immediately once. When the conclusions are the same twice, the initial or final coagulation can be determined.
The cement product was maintained until the initial measurement at 30 minutes after the water was added. The metal rod of the condensing instrument should be held lightly during the measurement, so as to prevent the test needle from bending, but the result of the free fall measurement still prevails. In the test, the test needle sinks in an orientation at least 10 mm from the inner wall of the test mold, and the test needle must not fall into the original hole for each measurement. After each measurement, the round mold must be returned to the maintenance box, and the test needle must be wiped clean.
In view of the large number of inferior cement products in the market, consumers are reminded to purchase carefully. Guangzhou cement pipe manufacturers should strictly control the quality during the production process and send good cement products to various constructions.