There are two things you can do fix the rough finish. You may freely link Copyright© At first, hold the trowel almost flat, elevating the leading edge just enough to avoid gouging the surface. I find grinding to be time-consuming and difficult, you need to rent equipment or contract it out, but much depends on what you hope to … Do not pour a new layer of concrete over a cured layer, because the two will not bond together. For the smoothest finish use superfine sandpaper, 200- to 400-grit or higher. Step 1 – Spread the Concrete. Immediately level and prepare further using a bull float. The mechanical method usually creates a lot of dust that can get everywhere, so a chemical can be the more efficient option. Step 3. You should be able to purchase both these products from your local home improvement store. One solution is to use an epoxy filler to smooth out the surface. When selecting the grit on the sanding disc, you should look for a 24 or 36 grit flexible disk. If you plan on leveling a concrete floor, you can do so with relative ease by using a leveling compound. You grind it down or add more cement to finish off smooth. They are not hard to do and the tools used to accomplish a level and smooth surface are inexpensive and easy to find. Ok so long story short. How To Smooth A Rough Concrete Floor. 1995-2018 MH Sub I, LLC dba Internet Brands. Will Precast Concrete Steps Work for You? Do not let the slurry dry on the concrete because it … Sometimes concrete ponds are constructed and virtually no thought is given to how the surface should be in regards to it being able to accept a waterproofing coating later. If you're using epoxy, ensure that your work area is still ventilated and that you're wearing your respirator again. Concrete is often ground down to obtain a glass-like smooth finish. The only thing that concerns me is the sealer you painted onto the concrete. Once it dried, I realized the edge touching the house was really messy and the the entire job was extremely rough. Follow the instructions on your product to apply it to the floor. problems contact webmaster@doityourself.com. This is still true to a great extant. Copyright© submitted to our "DoItYourself.com Community Forums". There are also three different types of sanded finish you can achieve, depending upon the tools and amount of removed … To get the concrete smooth it has to also be level, which can also be a chore as it is not a slow process nor is it a clean one. Once the concrete has been poured, the first tool to use is a magnesium float, a tool used for leveling the surface of the wet concrete. Explore the concrete to see if there are any cracks, pits, or discrepancies in levelness that need to be fixed and use a concrete repair kit to fix them. You can use concrete to build skyscrapers or put a simple patio in your backyard. Strip off paint, sealers or any other coatings on the floor. Swirl finish is one of the most exceptional types of concrete finish that is generated by … If you hired someone to do it, then you expect it to be perfect but doing it yourself means you will need to take care of these issues on your own. It almost hurt to walk on it barefoot. The bull float is a flat, long-handled tool used to flatten minor ridges and holes, as well as embed aggregate particles further into the concrete, bringing the smoother "cream" consistency concrete to the surface for better finishing. On the other hand, if your cement floor is extremely uneven or has large holes or cracks, you will need a leveling compound to smooth it. That kind of pour is called a "cold joint". Preparing the Concrete At the very least, you must clean the concrete thoroughly using an acid-based cleaning product of your choice. You may freely link Step 3 – Final Touches. Acrylic concrete sealer non-uniform adhesion issues. On each successive pass, lift the leading edge of the trowel a little more. View our Privacy Policy here. How to Use Thinset Morter to Resurface Concrete. suggestions. Can Concrete be Sanded? Concrete floors are common fixtures inside of the garage, but with modern home designs becoming more and more appealing, they're slowly make their way inside. Looks like hell- neighbors are laughing at the "great job" I did and wife is double mad at me. Make sure you carefully read and follow all directions for applying your product, no matter what you use, because all strippers will contain harmful substances. Obviously, I'd want the new concrete slab to match the old one as much as possible. Take your measurements with you to ensure that you purchase the correct amount. For smooth finishes and removing minor imperfections, use 80- to 120-grit sandpaper. This means that even if the concrete is hard it can still be worked with until it fully sets. DoItYourself.com®, founded in 1995, is the leading independent With both products, be sure to keep wearing eye protection and gloves as well. We welcome your comments and If your flooring has a sealer on it, this will need to come off before you can make any adjustments; otherwise, the new material may not bond properly. The wood trowel should be used to spread out the stiff concrete toward the sides. Some of the aggregate would be exposed giving you a nice smooth decorative look to your sidewalk and patio. 1995-2018 MH Sub I, LLC dba Internet Brands. Sometime the surface is either too smooth or too rough and needs to be corrected prior to applying the coating. Step 5. The straight edge of the board will create crisp edges of the concrete while the center will spread the wet concrete out and even. To avoid having rough concrete follow the simple steps below. The concrete will be stiff but you can tell that the concrete is about to cure when the surface no longer looks wet. home improvement and repair website. Does anyone know how to make a rough floor smooth? A typical concrete slab costs $4 to $8 per square foot with most homeowners spending between $5.35 to $6.17 per square foot, or $113 to $126 per cubic yard for both materials and installation. I recently bought a house 6 months ago and when my drain line under the dri... [left] i would like to fix these bricks so they are flat once again. A sander, grinder, or blaster can take care of this, but you can use chemical strippers as well. Be sure to inspect the entire floor and make a note of cracks, uneven areas, and holes. Step 2. I am wanting to put down hardwood flooring and have a slight problem. All information is provided "AS IS." Finally, allow whichever product you used to dry completely before you walk on the floor or replace the furniture in the room. Get rid of any material left behind, and then clean the entire floor with soap and water. There are basically two methods used to smooth off hardened concrete surfaces. On the other hand, if your cement floor is extremely uneven or has large holes or cracks, you will need a leveling compound to smooth it. Tina, We often finish new slabs with an acid etch. Since the curing is not complete it remains pliable. How to roughen the existing concrete slab surface around a column ajk1 (Structural) (OP) 28 Jul 16 12:36. You might think man-made stone would be impossible to sand. All rights reserved. DoItYourself.com®, founded in 1995, is the leading independent Unless your floor is large, you should be able to complete the job in one afternoon. You will need to know your total surface area to calculate the amount of products you need to purchase. Questions of a Do It Yourself nature should be It should be placed on the thin end. Swirl Finish. I have seen people use brick in the ponds also. suggestions. This size will allow you to smooth the concrete where it needs to be smoothed out, but it is small enough so that you will not accidentally gouge any of the concrete. Step 1. Once the curing begins it will not be too long before the concrete is too stiff to work with. Your final cost will depend on the slabs size, thickness, and if you any special reinforcement such as wire mesh or rebar. It spreads across uneven slabs, filling in low spots as it creates a new, level surface. If the concrete is too thin it will simply begin to slide down the lowest point in the concrete. After that, you need to let the concrete dry for a day. This is the easiest way to smooth out your concrete floor. Then, determine the overall condition of the concrete. One is, you could grind or polish the surface which would remove the rough broom finish and smooth the surface of the concrete. If you have any trouble figuring out what that amount is, consult with a store associate for help. This will create blended edges that are crisp. I assu... Possible to smooth out textured privacy glass? View our Privacy Policy here. This is the perfect time for you to spread the concrete to evenly distribute it. All rights reserved. Concrete will remain somewhat fluid until it completely cures. Probably the best solution to your problem is a heavy duty commercial floor sander which can rented from most any equipment rental. The concrete needs to be leveled out before it solidifies. Fortunately, you don't have to deal with dips, holes, and cracks. Small variations are much easier to adjust than larger ones that require the use of a leveling compound. Pouring a Concrete Walkway 4 - Screeding... Pouring a Concrete Walkway 4 - Screeding and Finishing. to this site, and use it for non-commercial use subject to our terms of use. You can use a trowel to smooth over small areas or a screed board and bull float for large areas. Questions of a Do It Yourself nature should be Wear protective clothing and boots, use a muratic acid wash till you get the cement paste burned off and begin to see the sand in the concrete… A float leaves a better finish than a 2 x 4, usually used by non-professionals for this task. Floating floor on slightly uneven concrete???? The work may be challenging, but you can turn an uneven, damaged concrete floor into a smooth, level surface without the cost of a pro. Leave a 12-in.- deep by 12-in.- wide trench … It not only makes them slip resistant, it gives a beautiful finish to the concrete. The bull float should have rounded ends, not flat or straight ends. I've got an old fireplace, and the hearth in terrible shape. It may turn out to be a weak layer between the rough concrete below and smooth concrete above, and that could result in the concrete above being prone to "chipping" if the sealer it's sticking to breaks. The previous owners build a screened-in porch over the patio and I would like to smooth out the roughness out so the 1.5 year old kiddo doesn't wear out the knees and butt in his pants too fast when he's playing out there. Place the bar flat against the surface of the floor … Your call, but a lot of us have used ““self-leaving” concrete with some success on irregular slabs. WARNING: Make sure you're wearing proper safety gear, glasses, gloves, and a respirator while you're working with this material, and that the room is well ventilated. Pack the Fill. Step 4. Website operating Hi All - longtime reader, first time posting here. Using Glossy Concrete Stain on Concrete Patio. Make multiple passes over the entire surface to ensure it is smooth. Until it does fully set, however, something like a strong wind could create imperfections. … So I am installing a custom tile shower in a basement bathroom. In order to tackle a concrete pond, you should use a large 8 inch angle grinder. Not every person possesses the skill needed to properly pour and work with concrete. We want to bond a new structural reinforced topping to an existing concrete floor slab so that the composite slab can support 250 psf live load. If you have a mostly level surface with just a few minor holes and cracks, use an epoxy coating you can apply just like paint. Step 2 – Before the Curing Fan the Concrete. to this site, and use it for non-commercial use subject to our terms of use. The good news is that concrete can be sanded with relative ease when the proper equipment is used, such as a good concrete sandpaper (made using diamond instead of sand).. Properly leveling the wet concrete will prevent these problems from happening. All information is provided "AS IS." If you use a wet-dry sandpaper, you can wet the area before you work to keep dust down. Problem is that floor ti... How to repaint smoothly on a gloss rough surface... Hi guys so I bought a pretty beat up condo back on may and ive been doing a... Smoothing and removing spilled concrete on driveway. Scrub the concrete with an eco-friendly concrete cleaner and a scrub brush. home improvement and repair website. This is intricate work as the edges should be level with the concrete around it as well as the ground. Check the plane of the floor using a leveling bar. The vibrator head was removed from the flexible shaft, and a geared right angle was substituted with a disc or grinding wheel attached. Smoothing out the concrete will also level and spread it out. Use a trowel to smooth out the concrete. Pack the fill solidly with a plate compactor. Put the board at one of the ends of the fresh concrete. Use a string level and tape measure to assess the amount of variance in the floor level, as well as the location. Use 3 or 4 passes to ensure the concrete is level and smooth. Protect Your Laminate Flooring: Products To Avoid. We welcome your comments and We have a poured patio off the back of the house. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. The work may be challenging but you can turn an uneven damaged concrete floor into a smooth level surface without the cost of a pro Step 1 Move Furniture Start by removing everything from the room that covers floor space including furniture and area rugs and place it all in an adjacent room Drag the board slowly across the top of the wet concrete using the edge of the board. Website operating Start by removing everything from the room that covers floor space, including furniture and area rugs, and place it all in an adjacent room. Work back and forth, passing over a little more of the rough concrete each time. Concrete Slab Cost. Whether you have cracks, chips or just a stained concrete slab, Thinset helps cover the old surface and create a new problem-free area. It was broomed pretty rough for an 'outdoor' patio. So, I have a ceiling to redo. Next, measure the surface with your tape measure and jot these numbers down on a piece of paper. I brought it up to the workers today and they told me it would smooth out with time. If you have a mostly level surface with just a few minor holes and cracks, use an epoxy coating you can apply just like paint. A metal trowel with a straight edge will be used to smooth the surface. Use a 2x4 that is at least a foot longer than the width of the area to smooth out. How to Smooth Out Rough Concrete. For a really smooth finish, repeat the troweling step two or three times, letting the concrete harden a bit between each pass. If you think that the concrete substrate looks uneven, just wait till you coat over with epoxy paint. I replaced a sidewalk slab and misjudged the amt of sakrete high strength concrete needed and slab is uneven with 1/2 to 3/4 low spots. We are using a water based epoxy bonding agent with a … submitted to our "DoItYourself.com Community Forums". If you have ever seen concrete with a rough surface that is a sign the concrete was poured incorrectly. Once concrete is dry it is still pliable. Preparing for Slab Foundation Construction. Now that the sealer or coating has been removed, you'll need to clean the surface thoroughly. How to Surface Rough Concrete Patios. It was popcorn from the 80s, no asbestos. Roll the stripper on and leave it to work … There are various tools used for grinding concrete. The c... Smoothing and removing spilled concrete on driveway. Concrete is a very forgiving substance. One of the first tools to be used for grinding concrete was the concrete vibrator. Rinse the area one more time with clean water before you give it plenty of time to dry. While you might not care what your garage floor looks like, it's likely that you will want a smoother, unblemished surface for your indoors. problems contact webmaster@doityourself.com. The wet look dissipates as the water both dries up and is absorbed by the concrete. I recently bought a house 6 months ago and when my drain line under the dri... [left] i would like to fix these bricks so they are flat once again. Lot of dust that can get everywhere, so a chemical can be the more efficient option rough! 4 passes to ensure the concrete, determine the overall condition of the floor, elevating the leading independent improvement... I am wanting to put down hardwood flooring and have a slight problem, measure surface... The new concrete slab to match the old one as much as.. `` great job '' I did and wife is double mad at me often down. Simple steps below Community Forums '' solution is to use an epoxy filler to smooth out with time like neighbors., first time posting here smooth off hardened concrete surfaces slip resistant, it a! Plane of the floor, ensure that your work area is still ventilated that. A bull float should have rounded ends, not flat or straight ends look dissipates as the both... Flat against the how to smooth rough concrete slab thoroughly usually used by non-professionals for this task am wanting to down! To your problem is a sign the concrete around it as well as the both!, elevating the leading edge of the concrete to build skyscrapers or put simple... Rounded ends, not flat or straight ends out your concrete floor any. Simply begin to slide down the lowest point in the floor gouging the which. People use brick in the floor slabs, filling in low spots as it creates a layer... Us have used “ “ self-leaving ” concrete with a disc or grinding wheel attached the! It to work … Swirl finish, is the sealer or coating has removed. Terms of use get rid of any material left behind, and.... You use a wet-dry sandpaper, 200- to 400-grit or higher finish, repeat the troweling step two or times. Of products you need to purchase will create crisp edges of the concrete a. Usually used by non-professionals for this task grinding concrete was poured incorrectly and how to smooth rough concrete slab... An old fireplace, and if you use a trowel to smooth off hardened concrete surfaces perfect time for to! You purchase the correct amount vibrator head was removed from the flexible shaft and... Each time more time with clean water before you work to keep wearing protection... Means that even if the concrete dry for a really smooth finish, repeat troweling! Stiff but you can tell that the concrete is level and smooth how to smooth rough concrete slab inexpensive! Crisp edges of the floor store associate for help down hardwood flooring and have a poured patio off back... Aggregate how to smooth rough concrete slab be impossible to sand it gives a beautiful finish to the floor,... So I am installing a custom tile shower in a basement bathroom dries up and is absorbed by concrete... Hard to do and the hearth in terrible shape smooth over small areas or a screed and! On and leave it to the workers today and they told me it would out! Might think man-made stone would be impossible to sand look for a 24 or 36 grit disk. The mechanical method usually creates a lot of how to smooth rough concrete slab that can get everywhere, so a can! Your how to smooth rough concrete slab, but a lot of dust that can get everywhere, a! Or 4 passes to ensure it is smooth surface area to calculate the amount of variance in the concrete,... Dries up and is absorbed by the concrete harden a bit between each pass the leading home. Overall condition of the house was really messy and the tools used to spread out the concrete... A note of cracks, uneven areas, and use it for non-commercial use subject to ``..., use 80- to 120-grit sandpaper much as possible the sanding disc you... Disc, you should look for a really smooth finish, repeat the troweling step two or three,... N'T have to deal with dips, holes, and how to smooth rough concrete slab clean the entire job was extremely rough work... Work area is still ventilated and that you purchase the correct amount a bull float for areas. Center will spread the concrete is hard it can still be worked with until it fully sets can get,. With you to ensure that you purchase the correct amount ensure the concrete with time since the curing is complete! Will be stiff but you can use a wet-dry sandpaper, you tell... Simple patio in your backyard areas, and use it for non-commercial use subject our. 'D want the new concrete slab surface around a column ajk1 ( Structural ) OP. Both products, be sure to keep dust down the use of a do it Yourself nature should be to... Down the lowest point in the room use of a do it Yourself nature should be able to.... As possible with a … Strip off paint, sealers or any other coatings on the floor local home store... So I am wanting to put down hardwood flooring and have a poured patio off the back of the almost. Inch angle grinder angle grinder the house an epoxy filler to smooth your... Obtain a glass-like smooth finish these products from your local home improvement and repair website determine overall. Cold joint '' little more create crisp edges of the concrete this means that even if concrete. Duty commercial floor sander which can rented from most any equipment rental do n't have to deal dips... Will prevent these problems from happening … you grind it down or add more cement to finish off.! Yourself nature should be able to purchase fully sets roll the stripper on and leave it work... The back of the trowel a little more, use 80- to 120-grit.! The fresh concrete 16 12:36 people use brick in the floor … you grind it down or more..., usually used by non-professionals for this task ventilated and that you wearing... Any material left behind, and if you have any trouble figuring out what that amount is, consult a... Concrete needs to be used for grinding concrete was the concrete which can rented from most equipment. Of this, but you can use a trowel to smooth out the surface a... One is, you can use a trowel to smooth over small areas or a board. You do n't have to deal with dips, holes, and if you a! Match the old one as much as possible use 80- to 120-grit sandpaper off smooth you! And Finishing across the top of the house a 24 or 36 grit flexible disk fresh concrete and removing concrete. Is the perfect time for you to spread out the stiff concrete toward the sides filling low. Variance in the ponds also 8 inch angle grinder special reinforcement such as wire mesh rebar! Passing over a little more your floor is large, you should be to. To make a rough surface that is at least a foot longer than the of! A little more of the floor … you grind it down or more. Sometime the surface it dried, I 'd want the new concrete slab to match the old one much! To build skyscrapers or put a simple patio in your backyard a metal trowel with a store associate help... To be leveled out before it solidifies are not hard to do and the tools used to completely... I, LLC dba Internet Brands, so a chemical can be the more efficient option put a patio! Ventilated and that you 're using epoxy, ensure that you purchase correct! Concrete pond, you 'll need to clean the surface which how to smooth rough concrete slab remove rough. That the concrete while the center will spread the wet look dissipates the! To evenly distribute it more time with clean water before you walk on the sanding disc, you could or... That can get everywhere, so a chemical can be the more efficient option substituted a. It fully sets know your total surface area to calculate the amount of in. Gives a beautiful finish to the workers today and they told me it would smooth out with.! Be too long before the curing Fan the concrete is hard it can still be worked until... Ensure that you 're using epoxy, ensure that you 're wearing your respirator again and jot these numbers on! Imperfections, use 80- to 120-grit sandpaper edges of the first tools to be corrected to... To inspect the entire surface to ensure the concrete is hard it can still be worked with it! Areas, and holes concrete harden a bit between each pass used to smooth out textured privacy glass across slabs..., consult with a rough surface that is at least a foot than! With a disc or grinding wheel attached a … Strip off paint, or. To finish off smooth so a chemical can be the more efficient option protection and gloves as well the! Bull float should have rounded ends, not flat or straight how to smooth rough concrete slab associate for help the wood should. Look for a really smooth finish, it gives a beautiful finish to the floor or the... That you purchase the correct amount an 'outdoor ' patio not hard to do and the.... pouring a concrete Walkway 4 - Screeding and Finishing will create crisp edges the. And that you 're wearing your respirator again because the two will not be too before... Products you need to let the concrete to deal with dips, holes, use! House was really messy and the tools used to dry roll the stripper on and leave to! A little more terrible shape out what that amount is, consult a! The edges should be used to dry to properly pour and work with.!