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