Current location - Health Preservation Learning Network - Health preserving class - Talking about the problems that should be paid attention to in the forming and curing of concrete specimens.
Talking about the problems that should be paid attention to in the forming and curing of concrete specimens.
Attention should be paid to the formation of concrete specimens:

1) Check the size of mold test to avoid using deformed mold test.

2) It is not easy to evenly coat the release agent on the test mold.

3) When tamping twice, the tamping rod should be inserted into the lower layer for 20-30mm. Insert a trowel along the inner wall of the test die and wipe it several times to prevent pits.

4) After the tamping is completed, it shall be leveled for 2-4 hours, and the elevation difference between the plastering surface and the edge of the die test shall be ≤ 0.5mm.. ..

Attention should be paid to concrete curing: the concrete specimen should be placed on an iron frame or wooden frame with a temperature of (20 2)℃ and a relative humidity of 95 or above in the standard curing room, with a spacing of at least 30-50 mm, and direct sprinkling with water should be avoided; Or place the specimen at (20 2)℃

Related articles
  • When will Xinghua high-speed railway be built?
  • Why is the wind coming, book club?
  • What should I buy when I go back to my mother's house for the Spring Festival?
  • Classic advertising words about jasmine tea
  • I want to go home by wind, but I'm afraid of Qionglou Yuyu. What do you mean it's too cold up there?
  • How about crock fast food?
  • How about Mengniu Yogurt Brief Introduction of Mengniu Yogurt
  • When people are old and want to live a long life, how do they need scientific health preservation?
  • What is the function of red bean and plum bean porridge? The efficacy and benefits of drinking red bean and plum bean porridge.
  • Why does the gardener paint branches on the roadside with stone powder?

    • copyright 2024 Health Preservation Learning Network All rights reserved