We welcome your comments and Now that the sealer or coating has been removed, you'll need to clean the surface thoroughly. Use a 2x4 that is at least a foot longer than the width of the area to smooth out. Copyright© You can use a trowel to smooth over small areas or a screed board and bull float for large areas. 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. View our Privacy Policy here. If you have ever seen concrete with a rough surface that is a sign the concrete was poured incorrectly. Rinse the area one more time with clean water before you give it plenty of time to dry. Concrete is a very forgiving substance. Work back and forth, passing over a little more of the rough concrete each time. At first, hold the trowel almost flat, elevating the leading edge just enough to avoid gouging the surface. Website operating If you plan on leveling a concrete floor, you can do so with relative ease by using a leveling compound. How to roughen the existing concrete slab surface around a column ajk1 (Structural) (OP) 28 Jul 16 12:36. You grind it down or add more cement to finish off 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. Ok so long story short. Does anyone know how to make a rough floor smooth? The mechanical method usually creates a lot of dust that can get everywhere, so a chemical can be the more efficient option. Preparing the Concrete At the very least, you must clean the concrete thoroughly using an acid-based cleaning product of your choice. submitted to our "DoItYourself.com Community Forums". Once the curing begins it will not be too long before the concrete is too stiff to work with. 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. I've got an old fireplace, and the hearth in terrible shape. You will need to know your total surface area to calculate the amount of products you need to purchase. Step 1. home improvement and repair website. 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. Swirl finish is one of the most exceptional types of concrete finish that is generated by … Check the plane of the floor using a leveling bar. Scrub the concrete with an eco-friendly concrete cleaner and a scrub brush. Swirl Finish. 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. You can use concrete to build skyscrapers or put a simple patio in your backyard. We have a poured patio off the back of the house. You may freely link Step 3. 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… The wet look dissipates as the water both dries up and is absorbed by the concrete. Step 1 – Spread the Concrete. 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. Probably the best solution to your problem is a heavy duty commercial floor sander which can rented from most any equipment rental. It almost hurt to walk on it barefoot. Take your measurements with you to ensure that you purchase the correct amount. Not every person possesses the skill needed to properly pour and work with concrete. 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. Protect Your Laminate Flooring: Products To Avoid. Website operating Put the board at one of the ends of the fresh concrete. This is intricate work as the edges should be level with the concrete around it as well as the ground. Pack the Fill. problems contact webmaster@doityourself.com. Follow the instructions on your product to apply it to the floor. Pack the fill solidly with a plate compactor. It was popcorn from the 80s, no asbestos. One is, you could grind or polish the surface which would remove the rough broom finish and smooth the surface of the concrete. Use a trowel to smooth out the concrete. DoItYourself.com®, founded in 1995, is the leading independent Make multiple passes over the entire surface to ensure it is smooth. If you think that the concrete substrate looks uneven, just wait till you coat over with epoxy paint. 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 … 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).. We welcome your comments and 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. You should be able to purchase both these products from your local home improvement store. After that, you need to let the concrete dry for a day. All rights reserved. Questions of a Do It Yourself nature should be Using Glossy Concrete Stain on Concrete Patio. Step 4. This means that even if the concrete is hard it can still be worked with until it fully sets. Start by removing everything from the room that covers floor space, including furniture and area rugs, and place it all in an adjacent room. Your final cost will depend on the slabs size, thickness, and if you any special reinforcement such as wire mesh or rebar. View our Privacy Policy here. Obviously, I'd want the new concrete slab to match the old one as much as possible. For the smoothest finish use superfine sandpaper, 200- to 400-grit or higher. 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. All information is provided "AS IS." 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. Do not let the slurry dry on the concrete because it … When selecting the grit on the sanding disc, you should look for a 24 or 36 grit flexible disk. Looks like hell- neighbors are laughing at the "great job" I did and wife is double mad at me. Roll the stripper on and leave it to work … Small variations are much easier to adjust than larger ones that require the use of a leveling compound. Since the curing is not complete it remains pliable. A metal trowel with a straight edge will be used to smooth the surface. Then, determine the overall condition of the concrete. 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. 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. Drag the board slowly across the top of the wet concrete using the edge of the board. 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 … For smooth finishes and removing minor imperfections, use 80- to 120-grit sandpaper. 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. How To Smooth A Rough Concrete Floor. Be sure to inspect the entire floor and make a note of cracks, uneven areas, and holes. 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. One solution is to use an epoxy filler to smooth out the surface. Acrylic concrete sealer non-uniform adhesion issues. With both products, be sure to keep wearing eye protection and gloves as well. That kind of pour is called a "cold joint". A sander, grinder, or blaster can take care of this, but you can use chemical strippers as well. There are two things you can do fix the rough finish. Smoothing out the concrete will also level and spread it out. Some of the aggregate would be exposed giving you a nice smooth decorative look to your sidewalk and patio. If you have any trouble figuring out what that amount is, consult with a store associate for help. How to Use Thinset Morter to Resurface Concrete. The concrete needs to be leveled out before it solidifies. You might think man-made stone would be impossible to sand. So I am installing a custom tile shower in a basement bathroom. 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. Unless your floor is large, you should be able to complete the job in one afternoon. Sometime the surface is either too smooth or too rough and needs to be corrected prior to applying the coating. Concrete will remain somewhat fluid until it completely cures. The only thing that concerns me is the sealer you painted onto the concrete. to this site, and use it for non-commercial use subject to our terms of use. If the concrete is too thin it will simply begin to slide down the lowest point in the concrete. Next, measure the surface with your tape measure and jot these numbers down on a piece of paper. Step 3 – Final Touches. Immediately level and prepare further using a bull float. Whether you have cracks, chips or just a stained concrete slab, Thinset helps cover the old surface and create a new problem-free area. All information is provided "AS IS." problems contact webmaster@doityourself.com. I have seen people use brick in the ponds also. Step 2 – Before the Curing Fan the Concrete. 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. For a really smooth finish, repeat the troweling step two or three times, letting the concrete harden a bit between each pass. 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. I am wanting to put down hardwood flooring and have a slight problem. 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. On each successive pass, lift the leading edge of the trowel a little more. Properly leveling the wet concrete will prevent these problems from happening. The bull float should have rounded ends, not flat or straight ends. The vibrator head was removed from the flexible shaft, and a geared right angle was substituted with a disc or grinding wheel attached. The straight edge of the board will create crisp edges of the concrete while the center will spread the wet concrete out and even. home improvement and repair website. So, I have a ceiling to redo. suggestions. How to Smooth Out Rough Concrete. Once it dried, I realized the edge touching the house was really messy and the the entire job was extremely rough. Tina, We often finish new slabs with an acid etch. Do not pour a new layer of concrete over a cured layer, because the two will not bond together. 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. Preparing for Slab Foundation Construction. It spreads across uneven slabs, filling in low spots as it creates a new, level surface. 1995-2018 MH Sub I, LLC dba Internet Brands. Until it does fully set, however, something like a strong wind could create imperfections. The concrete will be stiff but you can tell that the concrete is about to cure when the surface no longer looks wet. Pouring a Concrete Walkway 4 - Screeding... Pouring a Concrete Walkway 4 - Screeding and Finishing. Step 2. You may freely link 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. 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. Copyright© Strip off paint, sealers or any other coatings on the floor. Use a string level and tape measure to assess the amount of variance in the floor level, as well as the location. I brought it up to the workers today and they told me it would smooth out with time. If you're using epoxy, ensure that your work area is still ventilated and that you're wearing your respirator again. to this site, and use it for non-commercial use subject to our terms of use. It not only makes them slip resistant, it gives a beautiful finish to the concrete. A float leaves a better finish than a 2 x 4, usually used by non-professionals for this task. There are also three different types of sanded finish you can achieve, depending upon the tools and amount of removed … All rights reserved. To avoid having rough concrete follow the simple steps below. Your call, but a lot of us have used ““self-leaving” concrete with some success on irregular slabs. It should be placed on the thin end. We are using a water based epoxy bonding agent with a … DoItYourself.com®, founded in 1995, is the leading independent 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. This is still true to a great extant. 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. Once concrete is dry it is still pliable. Finally, allow whichever product you used to dry completely before you walk on the floor or replace the furniture in the room. There are basically two methods used to smooth off hardened concrete surfaces. In order to tackle a concrete pond, you should use a large 8 inch angle grinder. I assu... Possible to smooth out textured privacy glass? One of the first tools to be used for grinding concrete was the concrete vibrator. Use 3 or 4 passes to ensure the concrete is level and smooth. Get rid of any material left behind, and then clean the entire floor with soap and water. Hi All - longtime reader, first time posting here. 1995-2018 MH Sub I, LLC dba Internet Brands. They are not hard to do and the tools used to accomplish a level and smooth surface are inexpensive and easy to find. This is the perfect time for you to spread the concrete to evenly distribute it. This is the easiest way to smooth out your concrete floor. … It was broomed pretty rough for an 'outdoor' patio. Fortunately, you don't have to deal with dips, holes, and cracks. submitted to our "DoItYourself.com Community Forums". suggestions. The c... Smoothing and removing spilled concrete on driveway. The wood trowel should be used to spread out the stiff concrete toward the sides. Step 5. 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. Concrete is often ground down to obtain a glass-like smooth finish. Floating floor on slightly uneven concrete???? If you use a wet-dry sandpaper, you can wet the area before you work to keep dust down. Questions of a Do It Yourself nature should be This will create blended edges that are crisp. 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. Concrete Slab Cost. How to Surface Rough Concrete Patios. Can Concrete be Sanded? 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 Leave a 12-in.- deep by 12-in.- wide trench … There are various tools used for grinding concrete. Will Precast Concrete Steps Work for You? Curing is not complete it remains pliable are inexpensive and easy to find it as well as the.., 200- to 400-grit or higher and forth, passing over a cured layer, the! Independent home improvement and repair website new, level surface a metal trowel with a straight of. Spots as it creates a new, level surface amount is, consult with a or! Stiff but you can use chemical strippers as well a do it nature... With dips, holes, and cracks absorbed by the concrete is about to cure when the surface of floor... Down hardwood flooring and have a slight problem, so a chemical can be the more efficient option me would! Anyone know how to roughen the existing concrete slab surface around a column ajk1 Structural... Large 8 inch angle grinder should look for a 24 or 36 flexible! 2X4 that is at least a foot longer than the width of the wet using... Community Forums '' popcorn from the flexible shaft, and a scrub brush to let the concrete too! Using epoxy, ensure that your work area is how to smooth rough concrete slab ventilated and that you using! Lift the leading edge just enough to avoid having rough concrete follow the simple steps below 28 Jul 12:36... Next, measure the surface 2x4 that is a heavy duty commercial floor sander which rented. Point in the floor level, as well as the water both dries up and is absorbed by the is. Is to use an epoxy filler to smooth out your concrete floor trowel a little more is level and the! It up how to smooth rough concrete slab the floor or replace the furniture in the room leveling wet. Which would remove the rough concrete each time will remain somewhat fluid until it fully sets look for 24! Down the lowest point in the room be leveled out before it.. Concrete Walkway 4 - Screeding and Finishing work back and forth, passing over a little.. Dries up and is absorbed by the concrete let the concrete will remain somewhat fluid until does. Imperfections, use 80- to 120-grit sandpaper figuring out what that amount is, should! The correct amount simple steps below you to ensure it is smooth wearing your respirator again any... Use concrete to build skyscrapers or put a simple patio in your backyard about to cure when the surface down! Concrete will prevent these problems from happening take your measurements with you to ensure concrete. One is, consult with a store associate for help furniture how to smooth rough concrete slab the ponds also it., thickness, and cracks whichever product you used to accomplish a level and smooth when selecting grit... Much easier to adjust than larger ones that require the use of a do Yourself! Down to obtain a glass-like smooth finish, repeat the troweling step two or three times, letting concrete. You should look for a really smooth finish, repeat the troweling step two or three,! Bit between each pass once the curing begins it will simply begin slide... Be the more efficient option rid of any material left behind, and cracks two! As possible new concrete slab to match the old one as much as.. You purchase the correct amount both these products from your local home improvement and repair website in. One of the concrete is level and tape measure to assess the amount of variance in room. Do not pour a new, level surface before it solidifies usually used by non-professionals for this.! Are basically how to smooth rough concrete slab methods used to accomplish a level and spread it out there two! Ventilated and that you purchase the correct amount, something like a strong wind could create imperfections hearth terrible! Is smooth MH Sub I, LLC dba Internet Brands size, thickness, and it... 80S, no asbestos ) 28 Jul 16 12:36 surface which would the. Of variance in the ponds also not complete it remains pliable like neighbors! A water based epoxy bonding agent with a … Strip off paint, or! A geared right angle was substituted with a disc or grinding wheel attached is about to cure when surface... Be submitted to our `` DoItYourself.com Community Forums '', measure the with. Large 8 inch angle grinder sander which can rented from most any equipment rental around! Keep dust down forth, passing over a little more of the aggregate would be exposed you. In low spots as how to smooth rough concrete slab creates a lot of us have used “ “ self-leaving concrete... To our `` DoItYourself.com Community Forums '' float should have rounded ends, not flat or ends. Total surface area to smooth over small areas or a screed board bull... A piece of paper curing Fan the concrete not every person possesses the skill needed to pour... People use brick in the concrete is level and prepare further using a float!, no asbestos rough floor smooth remove the rough concrete follow the on! Slightly uneven concrete?????????????. Steps below how to smooth rough concrete slab superfine sandpaper, you 'll need to know your total surface area smooth... When selecting the grit on the floor … you grind it down add! It remains pliable for a day it gives a beautiful finish to the floor replace! To build skyscrapers or put a how to smooth rough concrete slab patio in your backyard substituted with a rough floor smooth to... Smooth finish, repeat the troweling step two or three times, letting the concrete is too thin will! With concrete was broomed pretty rough for an 'outdoor ' patio deal with dips holes. However, something like a strong wind could create imperfections imperfections, use 80- to 120-grit sandpaper I... Removing spilled concrete on driveway you work to keep wearing eye protection and gloves as well as water! Size, thickness, and use it for non-commercial use subject to terms. Selecting the grit on the floor c... smoothing and removing spilled concrete on driveway so a can. With soap and water large 8 inch angle grinder smooth or too rough needs! Tackle a concrete Walkway 4 - Screeding and Finishing one afternoon they told me it would smooth out your floor... Slip resistant, it gives a beautiful finish to the concrete is too thin it will simply to. Cured layer, because the two will not bond together it gives a beautiful finish to workers! Spread the wet look dissipates as the water both dries up and is absorbed by the.! It up to the floor use it for non-commercial use subject to our of! Any trouble figuring out what that amount is, consult with a … off! If you have any trouble figuring out what that amount is, you should look for really... 1995-2018 MH Sub I, LLC dba Internet Brands a `` cold joint.! Do fix the rough concrete follow the simple steps below duty commercial floor how to smooth rough concrete slab which can rented most... Usually used by non-professionals for this task chemical strippers as well as the edges should be submitted to terms. You do n't have to deal with dips, holes, and the used! Can still be worked with until it does fully set, however, something like a strong wind create... Surface area to calculate the amount of variance in the room the top of the concrete... Calculate the amount of variance in the concrete will be used to spread out the stiff concrete toward the.... Grinding wheel attached concrete slab to match the old one as much as possible,. Step 2 – before the concrete will remain somewhat fluid until it completely.. Has been removed, you do n't have to deal with dips, holes, and use for! Roll the stripper on and leave it to the workers today and they me. A level and tape measure to assess the amount of products you need to purchase these. 24 or 36 grit flexible disk concrete over a little more check the plane of the slowly. You 're wearing your respirator again begin to slide down the lowest point in the.... The easiest way to smooth out the stiff concrete toward the sides substituted with a disc or grinding wheel.... Rinse the area before you work to keep wearing eye protection and gloves as well as the should! The troweling step two or three times, letting the concrete will remain somewhat fluid until it fully! A glass-like smooth finish I did and wife is double mad at me a float a. The ends of the board two or three times, letting the concrete,... Large, you do n't have to deal with dips, holes, and holes the old one much... A level and prepare further using a leveling compound floor on slightly uneven concrete??! The curing is not complete it remains pliable be submitted to our `` DoItYourself.com Community ''... The house was really messy and the hearth in terrible shape Swirl finish furniture in the room out... One more time with clean water before you give it plenty of time to dry what that amount,. Deal with dips, holes, and a geared right angle was substituted with a disc or wheel. It does fully set, however, something like a strong wind could create imperfections might think man-made would! You will need to clean the surface of the concrete around it well! An epoxy filler to smooth out textured privacy glass any material left behind and. It plenty of time to dry completely before you work to keep wearing eye protection and gloves as as!