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If your use of the word "cement" actually means concrete, the answer is maybe?
Concrete may be placed on an existing concrete surface however you must proceed with caution! There are many floor leveling or topping products if you are merely trying to achieve a new look or raise an elevation slightly. This might be a better choice for you than placing new concrete directly on an existing concrete.
Why? Very smooth [ called steel troweled ] concrete has been finished to give a car showroom type appearance and is tough to get a bond to take. Heavy traffic will exacerbate the problem. The problem in obtaining a good bond for a patch or repair, or in the case, new over aged concrete is loss of water and premature hydration.
Your new concrete mix has a predetermined amount of water in the mix, based on conditions, temperature, wind, humidity, desired slump and strength, etc. Most often, water from the new concrete will be absorbed into the host material, thus decreasing the intended amount needed to properly hydrate your new material. When this happens shrinkage cracks and loss of bond occur. Slurry mixes or bonding agents are used to slow this absorption into the host material, but are sometimes not effective.
I recommend waterproofing the host material 48 hours before the new material is placed. Waterproofing the aged surface will stop moisture from wicking out of your fresh concrete and provide the bond needed. Very thin concrete overlays exposed to heavy traffic aren't recommended, best off to go with a leveling product! If you do use concrete, finish it off with a waterproofing application. This will waterproof the new surface and not allow moisture to penetrate down deep enough to compromise an already ify bond you may be dealing with.
What else can I help you with?
What is the blinding concrete?
a thin layer of lean concrete, keirkil fine, or sand applied to the surface to smooth the cavity in order to provide a dry cleaning or a more durable
What does sealing concrete do?
Concrete is usually alkaline and porous. Thus it may be attacked by acids - even mild ones such as milk!The porosity means that materials such as motor oil will be absorbed.Sealing the surface with an impermeable coating will help in avoiding these problems. This approach will work even better if the concrete surface has been made more dense and smooth by surface working before it has set.
What is the difference between cement punning and cement rendering?
Cement punning and cement rendering are both processes used to finish walls, but they differ in their application and purpose. Cement rendering involves applying a mixture of cement, sand, and water to exterior walls to provide a weatherproof and aesthetically pleasing surface, often used on brick or block structures. In contrast, cement punning is a finer finish applied to interior walls, typically consisting of a thinner layer of cement that creates a smooth surface for painting or wallpapering. Essentially, rendering is for exterior walls while punning is for interior finishes.
Why must the inner surfaces of the concrete mould greased with oil?
The inner surfaces of a concrete mold are greased with oil to create a smooth release surface, preventing the concrete from sticking to the mold when it sets. This lubrication facilitates easier demolding, reducing the risk of damage to the concrete structure and the mold itself. Additionally, it helps to achieve a better surface finish on the concrete by minimizing imperfections that may arise from friction during the removal process.
How to improve the workability of concrete?
To improve the workability of concrete, issue to be concerned of as below: - increase water/cement ratio - increase size of aggregate - use well-rounded and smooth aggregate instead of irregular shape - increase the mixing time - increase the mixing temperature - use non-porous and saturated aggregate - with addition of air-entraining mixtures
How can I properly apply finishing cement to my floor to achieve a smooth and durable surface?
To properly apply finishing cement to your floor for a smooth and durable surface, follow these steps: Prepare the surface by cleaning and leveling it. Mix the finishing cement according to the manufacturer's instructions. Apply a bonding agent to the floor to help the cement adhere. Pour the cement onto the floor and spread it evenly with a trowel. Use a float to smooth out the surface and remove any excess cement. Allow the cement to dry and cure according to the recommended time frame. Seal the surface with a concrete sealer for added durability. By following these steps carefully, you can achieve a smooth and durable finish for your floor.
How can I effectively use cement to repair cracks in my concrete driveway?
To effectively repair cracks in a concrete driveway using cement, follow these steps: Clean the crack thoroughly with a wire brush and water. Apply a concrete bonding agent to the crack to help the new cement adhere. Mix the cement according to the manufacturer's instructions. Fill the crack with the cement mixture, ensuring it is level with the surrounding surface. Smooth the surface with a trowel and let it cure according to the cement's drying time. Seal the repaired area with a concrete sealer to protect it from future damage.
How can I make smooth concrete?
To make smooth concrete, you can use a concrete mix with the right proportions of cement, sand, and aggregate. Ensure proper mixing and pouring techniques, and use a trowel to smooth the surface before it sets. Consider using a concrete sealer or polish for a smoother finish.
What is difference between MS rods and TMT bars?
TMT Bars - High strength deformed steel bars used for concrete reinforcement. The surface has many short ribs to allow the concrete to adhere better than if the bars had a smooth surface.MS Rods - Mild Steel rods are used to construct many things (such as scaffold construction), but are not the best choice for concrete. The surface of the rod is smooth, so it does not allow the concrete to adhere as well as if the surface had a texture.
What are the steps to properly apply leveling cement for a smooth and even surface?
To properly apply leveling cement for a smooth and even surface, follow these steps: Prepare the surface by cleaning it thoroughly and ensuring it is free of debris. Prime the surface with a bonding agent to help the leveling cement adhere better. Mix the leveling cement according to the manufacturer's instructions. Pour the cement onto the surface and spread it evenly using a trowel or a straight edge. Use a level to ensure the surface is flat and even. Allow the leveling cement to dry completely before applying any flooring or finishing materials.
What are the steps involved in using floor leveling cement to level a concrete floor?
To level a concrete floor using floor leveling cement, follow these steps: Clean the floor thoroughly to remove any debris or dust. Prime the floor with a bonding agent to help the leveling cement adhere. Mix the floor leveling cement according to the manufacturer's instructions. Pour the cement onto the floor and spread it evenly with a trowel. Use a straight edge or level to ensure the surface is flat and level. Allow the cement to dry and cure according to the recommended time frame. Once dry, you can sand or polish the surface as needed for a smooth finish.
How can cement leveling be effectively achieved for a smooth and even surface?
Cement leveling can be effectively achieved for a smooth and even surface by using self-leveling cement mixes, proper surface preparation, and following manufacturer's instructions for application.
What is the best method for using contact cement to adhere Formica to a surface effectively?
To effectively adhere Formica to a surface using contact cement, follow these steps: Clean the surface thoroughly to remove any dirt or debris. Apply a thin, even layer of contact cement to both the Formica and the surface. Allow the cement to dry until it is tacky to the touch. Carefully align the Formica with the surface and press firmly to ensure a strong bond. Use a roller to smooth out any air bubbles and ensure a secure attachment. Allow the adhesive to cure completely before using the surface.
What is the best method for applying a cement patch to repair a damaged concrete surface?
The best method for applying a cement patch to repair a damaged concrete surface is to clean the area thoroughly, mix the patching material according to the manufacturer's instructions, apply the patch evenly using a trowel, and then smooth and level the surface before allowing it to cure completely.
What is a cement bug?
A cement bug is a term typically used in construction to describe a small defect or imperfection in a concrete surface, such as a blemish or discolored spot. It can result from issues during the mixing or pouring of concrete, leading to an irregularity in the finished product. Addressing cement bugs usually involves repair work to correct the imperfection and ensure the surface is smooth and uniform.
How can I properly finish a concrete floor to achieve a smooth and polished surface?
To properly finish a concrete floor for a smooth and polished surface, follow these steps: Start by leveling the concrete surface with a bull float. Use a power trowel to smooth out any imperfections. Apply a concrete densifier to strengthen the surface. Polish the concrete with a series of progressively finer grit diamond polishing pads. Seal the surface with a concrete sealer to protect and enhance the finish.
How can I make concrete smooth?
To make concrete smooth, you can use a concrete float or trowel to level the surface while it is still wet. You can also use a concrete grinder or polisher to smooth out any rough spots after the concrete has dried.
