how to smooth rough concrete slab

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

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