Rapid maintenance method of concrete bricks
A concrete brick and fast technology, applied in the field of maintenance, can solve the problems of insufficient hydration of cement particles, falling off of concrete surface, inability to transform into crystallization, etc., and achieve the effect of solving the long curing period, improving the hardness of the brick body and improving the quality.
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Embodiment 1
[0043] A quick maintenance method for concrete bricks, comprising the following steps:
[0044] a. Brick body transportation, transport the formed brick body to a curing room with a certain temperature and humidity;
[0045] b. Increase the humidity, and use a humidifying device to increase the humidity in the curing room to 60%rh-90%rh;
[0046] c. Increase the temperature, and use a heating device to increase the temperature in the curing room to 45°C-65°C;
[0047] d. Curing, put the brick body in the curing room for curing, so that the components in the brick body can fully react and harden;
[0048] e. Natural maintenance. The bricks are transported out after being cured in the curing room. The bricks are fully permeable soaked and covered with a film for natural maintenance for a certain period of time.
[0049]In this embodiment, as a more ideal state, in actual operation, in one of the specific implementations, a humidifier is used to increase the humidity in the cur...
Embodiment 2
[0066] The same as in Example 1, after the brick body is made and shaped, it is covered with a film for natural curing after water spraying / full immersion, and the curing period is not less than 7 days under natural conditions.
[0067] Based on the above-mentioned specific implementation method, in the formula design of the brick body, Portland cement 425R or 525R is used for Portland cement.
[0068] Because the hardness of the brick body needs to meet the national standard, it needs to reach the hardness of C30, and under the condition of natural curing, the brick body made of 325R cement needs a longer curing period to reach the standard of C30. Usually, 425R Portland cement is used, and 525R Portland cement is used under special requirements. Compared with Example 1, under the situation of the same material, the hardness of the naturally cured brick body is relatively low by 20%.
Embodiment 3
[0070] The difference from Example 1 is that in this example, in step b, a humidifying device is used to increase the humidity in the curing room to 90% rh; in step c, a heating device is used to raise the temperature in the curing room to below 45°C.
[0071] In this embodiment, the temperature in the curing room is low and the humidity is high. During the curing process, due to excessive moisture, the curing effect of the brick body is not improved, the curing effect of the brick body is not good, and the expected strength cannot be achieved. The effect has a great influence on the quality of the brick body.
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