October 5th, 2008 | 
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Concrete can be damaged not due to changes in the weather. The damage can affect the construction, surface damage, peeling paint, or overgrown with fungi. Quickly fix before the negative effects become bigger. Not concrete problematic because four things. First generally starting from the cracks, Second, because the high absorption of the concrete so that less water-resistant. Third, stir-cast concrete that is not perfect, so on the inside casting there is still space or cavity-castings are not solid, fourth heavy castings which is not adequate for the home-stay 15-20 cm thickness of castings.A. Work steps for Repair Concrete Dak Upper part are:
1. Clean the surface of the concrete not the dust and dirt with a brush and spatula scrape.
2. Apply Waterproofing, starting at the point of not meeting the surface of concrete with a wall. At Waterproofing in wet conditions, fiberglass tape with push-if necessary, press with a paint roller which has been immersed in Waterproofing. Use of fiberglass on the walls and the surface (floor) no concrete level and 15-20 cm wide.
3. Along with closing the gap on the corners of the meeting and not concrete walls, Waterproofing applied to the entire surface of the concrete not. After drying, the coating is repeated again with the cross.
4. Waterproofing layer so that it is not broke because trampled or hit something hard, you should not concrete coated with cement plaster mixed with liquid Waterproofing 3-5 cm thick.
B. Lower Repair Concrete Dak:
1. Clean the surface (ceiling) no concrete from dirt by using a putty knife scrape and brush. If necessary with liquid fungicidal wash to eliminate fungus.
2. Alkali Layer sealer to block out the spots that do not paint the stripes. Wait a couple of hours for alkaline sealer to dry completely.
3. After that, the paint evenly. Should be done twice a painting. The first paint mixed with water as much as 10 percent, and the second with 20 percent water. Concrete ceiling was not clean again.
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