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