Epoxy flooring has brought people different life arts in survival, and the benefits of its application have been touched by people. Above is the request for high-altitude cement during the construction of epoxy flooring. 1) Request the cement base surface to be firm, firm and not shell-proof. Better is that the cement surface and the concrete bottom are poured together to root out the phenomenon of the shell-proof of the mortar layer. If the mortar layer is tampered with the concrete first and then laid with the mortar leveling layer, the thickness of the mortar layer is more than 3 cm. If it is a sports car, the mortar layer should be thicker to avoid the debonding, separation and rupture of the mortar layer. 2) Request that the cement layer surface not sand, good hardness. To achieve this goal, first, cement quality is good, second, the proportion with sand should be inappropriate, usually the proportion of cement sand should be inappropriate, usually the cement mortar layer should be abundant and well-fed, when watering, avoid pulverization. 3)外表平整、无凹凸不平、蜂窝麻面、水泥疙瘩等景象。
3) The appearance is smooth, without bumps, honeycomb hemp, cement knots and other scenes.
4) The appearance is dull and the water content is 6%. From the time point of view, the concrete in the maintenance period after construction is 3-4 weeks in summer. Or rubber cushion test, 3-6 weeks in summer, 2 weeks in summer and 4 weeks in summer. Or do the rubber cushion experiment, that is, lay a rubber board with 0.5m *0.5m arrangement on the cement floor, and seal the edges with adhesive paper around it. After four hours, reflect on whether there are water droplets in the inner layer of the rubber cushion, or if not, the surface layer is dull and can be constructed.
5) The PH value of the surface of the floor should be 6.8-8.0.
6) No oil, wax, other paint, latex paint, bubble sugar residue at high altitude. If so, we should try to clean up later.
7) Reflect with 2m ruler and wedge ruler, the smoothness is not more than 5 younger sisters.
8) The gradient should be in accordance with the plan request, and the permission bias value is 0.2% of the gradient, which is not greater than 30 sisters (scale introspection and water splashing experiment).
There are several points mentioned above for the request of high-altitude cement, so we must pay attention to them during construction.
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