Causes of cracks in cement tiles
In the production of large-scale cement tile manufacturers, due to the maturity of technology and the accuracy of raw material ratio, the products rarely have cracks in the production process and after completion. On the contrary, some small cement tile manufacturers are more prone to the above situation, so where is the problem?
Small cement tile manufacturers will have cracks in the production process, usually due to whether the proportion of raw materials is scientific; Specifically, whether the amount of cement is too much, whether the water cement ratio is appropriate, whether the mud content of sand is too large, whether the particle size of sand is too fine, and whether the grade ratio is reasonable (whether the particle size of sand is too consistent, coarse and fine). If their own instruments are insufficient, they can borrow the test room of the construction unit for ratio design. Recheck the production process; Focus on whether there is vibration during demoulding and handling after molding, which is easy to be ignored.
The products of the cement tile manufacturer of the inspection and curing strip belong to hydraulic materials, and a certain amount of water is required in the hardening process. If possible, a steam chamber can be built for curing, or the humidity in the greenhouse can be increased, or it can be watered and cured after being covered with straw curtain, or it can be heated and baked directly with fire in the greenhouse. In addition, it should be noted that the cement tile is thin and its ability to withstand vibration and temperature changes is weak. Therefore, do not vibrate during the demoulding and curing of the cement tile, or change suddenly indoors. When the air temperature difference is too large, do not move from the greenhouse to the outside.
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