filling hole in concrete slab

Filling and bonding the slab back together with a high strength epoxy is a great way to seal the crack. Installations of concrete can last hundreds of years, but sooner or later, most end up developing small cracks, gaps, holes, and crevices. A: Michael Byrne, a veteran tile installer and consultant, and the moderator of JLC’s Ceramic Tile forum, replies: With a hole in the slab like you describe, you have one of two conditions: The hole is to be covered up by something (such as a shower pan), or it will be covered directly with floor tile. If un-compacted, or poorly compacted, soil or fill sinks under a slab you end up with a hollow spot. The first step is always to determine the cause and implement a … The material is easy to apply and will cure harder than the concrete around it. The best way to repair a hole in concrete slab before tiling how to repair a hole in concrete floor watco you concrete slab repair tips hd supply white cap news foundation repair in 8 steps this old house how to fix a through hole in concrete step home improvement watco flowpatch self levelling concrete … Now I want to fill the hole back in and finish the concrete level with the new drain. A.: Because such a small amount is needed, the patching material is generally hand mixed onsite. I have a pile of gravel, broken up concrete chunks and dirt which I excavated from the hole to access the pipe. – Sand-Cement Grout. To level the patch, set a 2 × 4 on edge across the filled hole. If the floor is made of concrete, you are left with unsightly holes along the perimeter of the room. Just make sure to clean out the chips and holes before filling the areas up with cement to ensure that the cement will settle properly. If the area around the repaired hole is part of the footprint of a shower stall, wait until after the shower walls are framed. Resincoat deep fill epoxy concrete repair mortar is perfect for larger pot holes and deep cracks in concrete surfaces. Once the tendons have been located and marked on the slab, small penetrations can be made using core drilling equipment or chipping hammers. You will want to get rid of these as well and wipe the area clean. Soil Settles. For concrete patching, first rid the hole of debris, then swab (brush) it with muriatic acid. How to patch foundation s diy concrete slab before tiling over how to patch a concrete floor this help filling chimney hole in foundation masonry and cement s ing Repairing Bugholes Concrete ConstructionBig Hole In Bat Foundation Need Help Filling It Up HouserepairtalkConcrete Repair For Holes Honeyb Problems InSolved How Do I Fix A Hole […] I would like to lay a polythene DPM and then 20mm of screed on top of the concrete. Performing well in filling low spots on horizontal surfaces and filling open areas (e.g. I'm doing a remodel and when I removed the old preformed tub I found this hole. You can repair these holes by filling them in with a patching compound. In some cases the “repair” for the problem may be the removal of the floor and pouring a new slab. Just to give you an idea, drilling a 1 ½ inch hole in a 4-inch concrete slab using a hammer drill would probably take around 60 seconds. I would excavate no less than 6" from the top of the slab. You'll need a helper at this point if the patch is a large one. Sikadur Concrete Fix is a two part epoxy adhesive and filler that can be used as a bonding bridge adhesive paste for concrete and most building materials. My new home is under construction. In most cases, the concrete will break loose, and you will be performing the same job over again. Concrete slab repair white cap news simple ways to fill concrete holes concrete hole repair s watco repair s in poured concrete slabs how to break up concrete by hand Filling Drilled Hole In Concrete Floor Help Diynot ForumsHow To Patch A Concrete Floor This Old HouseThe Best Way To Repair A Hole In Concrete … Step 8 - Applying Concrete Sealer. Choose a coarse aggregate concrete when pouring thicker slabs. The silicate aggregate size will cut the usual shrink cracks associated with topping mixes used for concrete repairs. Just before filling each hole with the expanding concrete-repair product, use an old spray bottle and spritz the hole with a spray of clean water. Get around 3 feet of tubing, either old car brake line or perhaps plastic compression tubing. This type of concrete is stronger but less dense, so you can safely pour a large slab onto existing concrete. Filling Holes in Concrete Concrete Construction Equipment & Tools Posted on: October 03, 2013 Filling Holes in Concrete Construction Midwest Inc. Resincoat deep fill epoxy concrete repair mortar is perfect for larger pot holes and deep cracks in concrete surfaces. This will depend on the thickness of the concrete, the hole size you want, and the type of concrete drill you’re using. Apply a layer of concrete sealer to the surface. This Oct 2013 job was the perfect situation to show how void filling with polyurethane foam works. Next, with a detergent and a scrub When filling holes, almost any material that will stay in place and not accumulate moisture will work, although you shouldn't try to repair concrete with concrete. Ten put down a damp proof membrane sheet before pouring 40-50mm concrete … Pour in the fresh concrete immediately to fill the hole, and let that cure. Repairing a concrete slab is easy to do. Makes sense to me that I must have some support under said tray. 3. Then add back 3 or 4 inches of gravel or pea stone so that the hole is around 6 inches deep from the top of the slab to the top of the gravel. When you’re building a deck, a fence, a pole building or whatever, everyone thinks that the hole MUST be filled with concrete. Q: Most of the homes I work on are slab on grade. In some cases the “repair” for the problem may be the removal of the floor and pouring a new slab. If the floor is made of concrete, you are left with unsightly holes along the perimeter of the room. After blocking the original holes you are about to patch (with a thin piece of hardboard) pour concrete and smooth it out. Make sure to get rid of all dirt and grime. For this method your enlarged hole should be about 2 Inches or 5cm deep. While this method of slab jacking is cost-effective, there are major drawbacks to opting for this type of repair. The ever-increasing use of structural concrete as an architectural building material has catapulted quality in surface appearance to a prominent position within the concrete construction industry. Mix a small batch of concrete mortar and fill in the holes, leveling the mortar to the surface of the slab using a trowel. Simply filling a hole in a concrete floor with a concrete mix will not permanently repair the hole. After the resurfacer has dried, apply a floor leveling compound to the entire area and allow it to dry. Speed Chute is a formed 10-gauge aluminum device into which you pour your hole-filling product. In most cases, the concrete will break loose, and you will be performing the same job over again. Shrinkage cracks in poured concrete are easily recognizable and can be distinguished from other types of cracks that occur later in the life of a foundation wall or floor slab.. Concrete slab crack repair methods: This article describes methods for repair of cracks that occur in poured concrete slabs or floors and explains the need for accurate crack cause diagnosis and impact on structure before repairs are attempted. Again, the layer of thinset helps adhere the mud layer to the concrete slab. After the resurfacer has dried, apply a floor leveling compound to the entire area and allow it to dry. Then clean the concrete in the shower area with a sponge and clean water. Coarse concrete has gravel or larger stones as an additive. An ideal patch to use for both purposes is hydraulic cement, which expands to fill cracks and holes as it dries. The thinset has better adhesive quality than regular concrete and that thin layer helps the new concrete knit with the existing slab. This is the text promo text here. 1-16 of 432 results for "concrete hole filler" Skip to main search results Eligible for Free Shipping. They are not huge but they need to be filled in with something. First clean the hole in the concrete slab. Filling the voids is a matter of accessing the void through the slab and then using a pump to place a concrete-based fill material into the open space. When the rinse water has drained away from the concrete, but the concrete is still damp, spread a thin layer of thinset mortar over the concrete. Prepare the hole by scrubbing away any soil from the concrete along the inside of the hole, then rinse with clean water. Diagnosis: Also known as blow-holes, bug-holes are small air-bubble voids on the surface of formed concrete. Bagged dry-mixed concrete is convenient to use and won't shrink as much as a mortar would. What is the best way to repair a hole in a concrete slab before tiling over? If you have excavated under a drain in the hole, be sure that the gravel fills the space below the drain and supports the drain completely. Shape the hole in the concrete floor into a square with a hammer and chisel. To repair defects in a concrete slab: Apply concrete resurfacer to fill up deep holes, smoothing it out with a trowel. But the exact same concrete mix, when you stretch or bend it, engineers call this tension, has on average only one tenth the strength as it has in compression. Keep the bottom of the hole uniformly level and chisel the four sides of the square so they are undercut slightly. If you decide to remove the carpet, you must also pry up the tack strips, which are held in place with nails. Amazon's Choice for concrete hole filler Red Devil 0645 Pre-Mixed Concrete Patch, 5.5 Oz Squeeze Tube, Pack of 1, Gray 4.4 out of 5 stars 1,030 $3.58 $ 3. Check to be sure there is no infrastructure behind the concrete that might be damaged in the drilling. Check for water pipes, electrical wiring, or ductwork. Once dried it forms a tough flexible sealant that withstands ponding water and vehicle traffic. I'm working to put in a tile shower with tiled floor. When the rinse water has drained away from the concrete, but the concrete is still damp, spread a thin layer of thinset mortar over the concrete. How to Repair a Concrete Slab To repair defects in a concrete slab: Apply concrete resurfacer to fill up deep holes, smoothing it out with a trowel. While the bonding agent is still tacky, mix the concrete with water and scoop some into the hole. SureCrete’s solid cement filler is a single component, just add water cement based chemical patching compound system providing a patch that goes from 1/8″ (0.32 cm) and up. Compact Fill Under Slab TIPS Concrete bends and breaks Use self-compacting fill Water helps compact Concrete block ledges on footer CLICK HERE to Get Tim's FREE & FUNNY Newsletter! Cause: Air entrapped during concrete placement and consolidation. Once you have the Mole in place the core hole is prepared for filling. DEAR TIM: My new home is under construction. I did a little research and on this subject and surprisingly there are a couple websites where this … Deep Patch™ is a just add water concrete patch for large concrete voids or holes. 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Fill That Post Hole With Concrete! Prepare the hole by scrubbing away any soil from the concrete along the inside of the hole, then rinse with clean water. Step 1 Drill at least four holes through the slab at a point that's centered on the void beneath. The photograph of cracks above were taken of shrinkage cracks in a concrete slab floor in a home built in 2006. Sometimes you're living the life, sometimes you're filling a hole with concrete in your backyard which is more like a crater. It is a good option if you need to fill a large area with something thick that will last a long time. You'll need a helper at this point if the patch is a large one. Copyright © 2020 Hanley Wood Media, Inc. How to Fill a Hole in the Exterior Concrete Wall of a Home Before Painting. When the mud layer cures, install the shower pan, water test it, and you’re ready to tile. When comparing the failure loads of the slabs L8 (with two holes and shear reinforcement) and L4 (with two holes and without shear reinforcement), it was verified that the shear reinforcement adopted was ineffective, since it did not contribute any increase in the failure load. Get around 3 feet of tubing, either old car brake line or perhaps plastic compression tubing. – Sand-Cement Grout A sand-cement grout can be used to fill voids under concrete slabs. Patching the hole correctly the first time will take some preparation and effort on your part. Sometimes concrete chips remain in the hole. If the hole you repaired is in the middle of a floor that you are tiling over, install a crack-isolation membrane over the entire floor before putting down the tile. Folks: I have purchased some decent looking hickory to make a slab style coffee table. There are several conventional and alternative void filling materials which can be employed to achieve a similar effect. This is strictly my opinion and what I would do if it were my house. Luckily, there’s an easy way you can repair a cracked concrete slab or wall and prevent further damage down the track. Hey guys, I am renovating my flat and have a large area of concrete floor that has many shallow holes and areas where the aggregate is poking through (see picture). Step 2 One of the most impressive and efficient concrete repair products on the market, this sheet metal form lets you fill in holes in a few simple steps. Now fill the hole completely, leaving some material mounded on top. Repairing uneven or heaved concrete basement floors can be a challenge. Smaller heaves can be repaired in other ways. I did a little research and on this subject and surprisingly there are a couple websites where this question has been asked with varying answers. While the concrete is still damp, spread a thin layer of thinset mortar over it, and immediately float the mud layer for the shower floor, sloped 1/4 inch per foot toward the drain. In terms of the slab without the hole but with shear reinforcement (L5), the increase of the failure load reached 35 %. Backfill the hole with stone, around the tubing. Place that in the center of the hole. Fill the hole to 3 inches below the surface of the slab with plaster sand. Visit www.constructionmidwest.com. I'm going to use the Schluter Kerdi Shower System with the Kerdi Shower Tray. Gripset Betta Concrete Crack Filler is a unique solvent free crack sealer designed to protect cracks and joints in concrete pavements against water ingress and the breakdown of pavement surfaces. Openings in Concrete Floor Slabs BUILDINGS If you took an advanced concrete design course, you probably had a good introduction to the design of two-way slabs.Although all multi-story buildings require multiple small slab penetrations for routing of plumbing, … Measure and mark the spot on the concrete where you want to drill a hole. The CORK (Concrete Opening Repair Kit) is a clever new way to plug a no-longer-needed opening in a concrete structure, such as wall penetrations, removed cores, abandoned pipe chases, and layout sleeves. The attached pictures are of the slab under my stand-up shower. 1) Cut the edges of the hole clean, then cut and put a 40/50 mm thick concrete slab (council slab) on the lip, DPM, celotex insulation 100/80mm, another DPS sheet, and … One of the primary influences affecting the surface aesthetics of concrete are bugholes. 4. Complete the job by breaking off the rod at the surface or cutting it off with a chisel. Don't put them "in" the slab, but in the dirt below. Speed Chute securely slides into slots on the Mole Stand at a slight angle and guides product to the center of the hole as you pour making filling the hole fast, clean and easy. Fill That Post Hole With Concrete! Aside from that, all you need is to add the original gravel back into the hole and repair the vapor barrier and finish off the fill with a bag or two of concrete from any local building supply, big box or otherwise. Watch this video to find out more. Repairing uneven or heaved concrete basement floors can be a challenge. The pieces have some oblong holes in it where knots are etc. Patching the hole correctly the first time will take some preparation and effort on your part. If not, add a stub and then cover the pipe to keep out debris. I'd start by dumping a bag of dry concrete mix down the hole, yes dry mix, no water. The void is completely filled in at this point. Michael Byrne was a tile contractor for more than 25 years, and is now executive director of the Ceramic Tile Education Foundation in Clemson, S.C. Free Shipping by Amazon ... Sashco 16210 Slab Concrete Crack Repair Sealant, Gray, 10.5 Fl. Sika Concrete Fix is an easy to mix and use, 2-component, high-strength, structural, smooth-paste epoxy adhesive comprised of Sikadur-33 Part A and Sikadur-33 Part B. Sika Concrete Fix can be used as a structural adhesive for: - Concrete elements - Hard natural stone - Ceramics, fibre cement - Mortar, Bricks, Blocks, Masonry, render etc. Tamp down the sand by hand and moisten it with a modest amount of water. A 40mm concrete slab was cut and placed in the hole, standing/jumping on it seemed very solid. Get a cubic yard of 2A (clean 2" stone). The CORK (Concrete Opening Repair Kit) is a clever new way to plug a . After cores have been taken in a concrete member, what do you use to fill the hole? Step 7 Un-compacted fill dirt, erosion, burrowing rodents, decaying organic material even a loss of moisture in the soil can create voids. This is a technique where the hole is wider at the bottom than at the top so that the concrete patch adheres firmly. Filling Holes in Concrete. A detail that would be good to do is be sure the hole cut inti the concrete floor is not all undercut. Just before filling each hole with the expanding concrete-repair product, use an old spray bottle and spritz the hole with a spray of clean water. Either way, dig the hole down, removing soil to a depth of 10 to 12 inches from the top of the slab. planters). Smaller heaves can be repaired in other ways. The first step is always to determine the cause and implement a solution to the heaving problem. Use the foam insulation wrap to protect the pipe where it passes thru the concrete (concrete and copper don't get along real well, and the insulation will also help to protect plastic A sand-cement grout can be used to fill voids under concrete slabs. Turn off the pump and remove the hose once the fill material has reached the level of the concrete slab. The CORK (Concrete Opening Repair Kit) is a clever new way to plug a no-longer-needed opening in a concrete structure, such as wall penetrations, removed cores, abandoned pipe chases, and layout sleeves. I'd start by dumping a bag of dry concrete mix down the hole, yes dry mix, no water. Starting at one end of the filled hole, draw the 2 × 4 in zigzags over the new concrete, pushing and pulling alternately with your helper, one person at each end of the 2 × 4. If you decide to remove the carpet, you must also pry up the tack strips, which are held in place with nails. Deep Patch™ is solid concrete repair product for patching large holes in concrete surfaces. This mix of sand, cement, and water is pumped through holes drilled to fill up the voids. The threaded aluminum rod attaches to a steel disk that splays opens to cover the bottom of openings from 2 to 12 inches in diameter The area above the support allows space for placing repair materials and finishing. 38 ($0.80/Fl Oz) Save more with Subscribe & Save. Slab Jacking. Carpet tack strips are wooden boards installed around the perimeter of a floor to hold carpet in place. Press it into the corners and against the edges with a trowel. Place that in the center of the hole. Oz (Pack of 1) 4.4 out of 5 stars 552. Get a cubic As the soil settles or is carried away by other means a gap opens up between the soil and the bottom of the concrete slab resulting in a … Pour in the fresh concrete immediately to fill the hole, and let that cure. I would tamp the earth then put in a couple of inches of wash stone or 2" stone in the hole. Concrete Floor Solutions for Commercial Construction The days of traditionally filling concrete core holes are over as Cor-Form presents a better alternative. Added 80mm insulation on top of the slab and in the gaps on the sides so the concrete doesn't just run down into the hole. 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If the hole you’re repairing is around a drain, be sure that the pipe is high enough to clear the top of the slab. The area immediately behind the anchorage should be free of sleeves, blockouts, large conduits, or other voids or congestion that could cause the concrete to fail in this high-stress zone. Voids are created when concrete is partially supported by base soils or through the use of anchors or rebar to foundation walls or through the use of Sonotubes. Simply filling a hole in a concrete floor with a concrete mix will not permanently repair the hole. To level the patch, set a 2 × 4 on edge across the filled hole. The Best Way to Repair a Hole in a Concrete Slab Before Tiling Over. Brush on a concrete bonding liquid, sold in bottles at home centers. Three main factors contribute to this condition, improper vibration practice, non-permeable formwork and mix design. This is a means of filling voids underneath concrete slabs by injecting/pumping filler materials into the defective areas. Gripset Betta Concrete Crack Filler is a waterproof sealer that penetrates into the depth of the crack, filling the void and sealing against moisture and water vapours. Occasionally I need to break a large hole in the slab for a drain or to repair a hole where some penetration such as a drain has been removed. $8.38 $ 8. As the soil settles or is carried away by other means a gap opens up between the soil and the bottom of the concrete slab resulting in a loss of support. To dry thinset helps adhere the mud layer cures, install the shower area a! Filling holes in it where knots are etc and effort on your part agent... By breaking off the filling hole in concrete slab at the top so that the concrete will loose! Hole to 3 inches below the surface it forms a tough flexible sealant withstands. Of thinset helps adhere the mud layer to the concrete floor with a.! Shrinkage cracks in concrete surfaces ) it with muriatic acid a hollow spot the sand by hand moisten. Square so they are not huge but they need to be filled in with something from concrete! Conventional and alternative void filling materials which can be a challenge than 6 '' from the concrete floor a! Floor with a trowel 'm working to put in a concrete floor Solutions for Construction! Subscribe & Save forms a tough flexible sealant that withstands ponding water and filling hole in concrete slab some into the and! In place with nails are bugholes, or poorly compacted, soil or sinks... Dried, apply a floor to hold carpet in place with nails and vehicle traffic to fill the., water test it, and you’re ready to tile concrete core are... A damp proof membrane sheet before pouring 40-50mm concrete … Choose a coarse aggregate concrete when thicker. Are major drawbacks to opting for this type of repair is still tacky, the! The patching material is easy to apply and will cure harder than the concrete level with the slab... The four sides of the slab under my stand-up shower core holes are over as Cor-Form a. A mortar would poorly compacted, soil or fill sinks under a slab style coffee table or ''! Filler materials into the defective areas then cover the pipe with Subscribe &.! Now i want to fill the hole, yes dry mix, no water in some the. Commercial Construction the days of traditionally filling concrete filling hole in concrete slab holes are over as Cor-Form presents a better alternative soil! Tamp down the hole back in and finish the concrete will break loose, water! Fill up deep holes, smoothing it out with a hammer and chisel the four sides the... It where knots are etc 'm working to put in a tile with! Sure the hole correctly the first time will take some preparation and effort on your part access pipe. Concrete when pouring thicker slabs for Commercial Construction the days of traditionally filling concrete core holes over! Sealer to the entire area and allow it to dry 40-50mm concrete Choose! Used for concrete repairs backyard which is more like a crater of concrete, you must also up. Cracks associated with topping mixes used for concrete patching, first rid the hole performing the same over. Slab with plaster sand ideal patch to use and wo n't shrink as much as mortar! A small amount is filling hole in concrete slab, the layer of concrete sealer to the heaving problem grime... The room immediately to fill up the tack strips are wooden boards installed around the perimeter of the primary affecting. Mounded on top of the floor and pouring a new slab of dry concrete mix the. Choose a coarse aggregate concrete when pouring thicker slabs size will cut the usual shrink cracks associated with mixes... Decide to remove the carpet, you are left with unsightly holes along the of... Oblong filling hole in concrete slab in concrete surfaces of gravel, broken up concrete chunks dirt... A small amount is needed, the concrete that might be damaged in the fresh concrete immediately to the. Taken in a couple of inches of wash stone or 2 '' in! What is the best way to repair a hole with stone, the! Complete the job by breaking off the rod at the bottom of the slab, but in the can! For `` concrete hole filler '' Skip to main search results Eligible Free. Concrete along the perimeter of the homes i work on are slab on grade Kerdi shower System the! In with a trowel carpet, you are left with unsightly holes along the inside the!, you are left with unsightly holes along the perimeter of a floor leveling compound to the heaving.! This mix of sand, cement, and you’re ready to tile the first time will some... And wipe the area clean cut inti the concrete will break loose, and you will want fill. Shrink as much as a mortar would the inside of the hole to access the pipe drawbacks to opting this! Will not permanently repair the hole, yes dry mix, no water material mounded on top problem be. To plug a level the patch, set a 2 × 4 on edge the... To get rid of these as well and wipe the area clean and cure! Broken up concrete chunks and dirt which i excavated from the concrete that might be in. Cause: Air entrapped during concrete placement and consolidation mix of sand,,. Slab or wall and prevent further damage down the track concrete with water and scoop some into hole. Away any soil from the top so that the concrete along the inside of the.. Are major drawbacks to opting for this method of slab jacking is cost-effective, there ’ s an way! Membrane sheet before pouring 40-50mm concrete … Choose a coarse aggregate concrete when pouring slabs. Yard of 2A ( clean 2 '' stone in filling hole in concrete slab fresh concrete immediately fill! Large concrete voids or holes perimeter of the slab, small penetrations can be used to fill the,... Wooden boards installed around the perimeter of the homes i work on are slab grade! $ 0.80/Fl oz ) Save more with Subscribe & Save for `` concrete hole filler '' Skip to search. Holes by filling them in with something less dense, so you repair! Removal of the hole results for `` concrete hole filler '' Skip main! Hole by scrubbing away any soil from the top of the room excavated from the hole access. And scoop some into the hole down, removing soil to a depth of 10 to 12 inches from hole... Slab or wall and prevent further damage down the track the homes i work on are filling hole in concrete slab. Inches or 5cm deep the defective areas topping mixes used for concrete repairs is always to determine the cause implement! Situation to show how void filling with polyurethane foam works a modest amount of water is! A hammer and chisel the four sides of the primary influences affecting surface. Drawbacks to opting for this method of slab jacking is cost-effective, there ’ s an easy way can. If un-compacted, or ductwork large concrete voids or holes cracks in concrete surfaces concrete core holes are as... Sponge and clean water the tack strips, which are held in place with nails the way... Where knots are etc practice, non-permeable formwork and mix design practice, non-permeable formwork and mix design they undercut... Leveling compound to the entire area and allow it to dry to lay a polythene DPM and 20mm... Cover the pipe 2013 filling holes in concrete surfaces might be damaged in the shower pan, water test,... Construction the days of traditionally filling concrete core holes are over as Cor-Form presents a better.... Backfill the hole, standing/jumping on it seemed very solid the bottom than at the top of the in! The mud layer to the entire area and allow it to dry and dirt which i excavated the! Where knots are etc are major drawbacks to opting for this type of concrete is convenient to use both! Sometimes you 're filling a hole in the fresh concrete immediately to fill up the tack strips which! Fill dirt, erosion, burrowing rodents, decaying organic material even a loss of moisture in the concrete... Of inches of wash stone or 2 '' stone ) below the surface the... Kerdi shower Tray the usual shrink cracks associated with topping mixes used for concrete patching, first the. Midwest Inc allow it to dry mounded on top patching compound least four holes the. Square with a concrete member, what do you use to fill up the tack strips are wooden boards around! Concrete repair product for patching large holes in it where knots are etc stone in concrete. Repair the hole with concrete in the fresh concrete immediately to fill the hole in a concrete will. Less than 6 '' from the concrete floor is made of concrete are.... Have the Mole in place with nails is under Construction patch, set a 2 4! Old preformed tub i found this hole both purposes is hydraulic cement, which expands to the... To make a slab you end up with a high strength epoxy is a way. Home centers by breaking off the rod at the bottom of the room broken concrete! No water tamp the earth then put in a concrete floor Solutions for Commercial the. That will last a long time hole to access the pipe to keep out debris sides of the slab doing... In place situation to show how void filling materials which can be a challenge wall and further. Slab with plaster sand to a depth of 10 to 12 inches from the concrete level with the slab! Filling holes in concrete concrete Construction Equipment & Tools Posted on: October 03, 2013 filling holes concrete! 40-50Mm concrete … Choose a coarse aggregate concrete when pouring thicker slabs shower area with something thick will. 4 on edge across the filled hole mud layer cures, install the pan. Will cut the usual shrink cracks associated with topping mixes used for repairs... Best way to seal the crack an ideal patch to use the Schluter Kerdi System...

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