What should I know about the cement repair?
Cement quality repair or restoration of concrete depends on gluing new cement with old, hassle -free. The correct cement repair can leave a smooth, good -looking result and the last 20 to 30 years without having to re -replace or repair. Careful planning in a specific renewal is primarily to repair the foundation that can save thousands of dollars by later avoiding costly repairs.
The concrete consists of four elements: sand, gravel, water and cement. Cement crystals chemically react with water to connect with sand and gravel. Cement repair fails when new and old cement cannot combine the feature, so the best way to ensure that the concrete renewal project is success is cement repairs. Choosing the right gravel, sand and Portland cement is more time consuming, but cheaper and generally results in a cleaner and uniform look. Portland cement with a more concrete type of cement on the market. When repairing patches that do not require gravel, mix the sand 2.5 parts per partcement. Choose gravel appropriately to match the existing concrete.
Connecting a new cement to repair previously shaped concrete, such as edges, corners, stairs or sidewalks, requires a pin such as a reinforced steel rod. The rough exterior of the bar gives a new concrete surface area that can grasp, which improves the patch. If the old concrete allows space, use a piece of half -inch hammer to drill three to four -inch deep holes. For a half -inch steel rod, use four pound hammer or heavier. Measure the length of the rod you need first because cutting the rod after insertion can weaken older concrete or cause new concrete to tear off.
clean and dampen the old cement before starting. Apply a thin coat of cement color to the surface. Paint any steel pins with a metal primer to prevent the rod from rusting and cracking bEton later. Apply a generous layer of cement and then add a mixture of sand, gravel and cement to repair the crack, hole or surface.
When completing, see the gravel pieces a quarter inches below the surface with a shaking flat plate above the surface. The best time is how you initially pour concrete. This process will bring sand and concrete to the surface, which will lead to smooth, even appearance.
Cool and wet weather is the best time to repair outdoor cement. Avoid warm, rainy or fresh days for this type of common home repair. If you have to work on a hot day, pay attention to the cement because it is built and repeatedly smoothed the settling concrete. When cement settles, it can bleed water. Do not use a plate or a teaspoon to force the water back into the concrete as thje over time weaken the surface of the concrete. Simply let the water evaporate.
After applying the new layer, cover the plastic patch to prevent premature drying. Regularly use water for a new repair for at least JEdno week. The new cement takes up to three months to cure and dry properly. It may take a long time for the cement repair to look indistinguishable from the old concrete.