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Jan 06, 2016 Grinding Down Concrete? The building and landing are now settled so the door swings out and then hits the concrete landing preventing the door from opening farther. For a quick fix, someone cut the door down, but the door still does not open all the way and when it …
Save that slab! If you have an uneven concrete slab, you could replace it or cover it with leveling compound. But consider grinding it instead. Powerful grinding equipment is available at rental centers that cater to contractors. Here are a few of the most common uses: Tapering cracks or heaves to reduce tripping hazards.
Feb 25, 2003 Re: Concrete slab over stumps Pup-As the stumps rot, the ground will settle under the slab, possibly causing it to settle. Given the small size of the stumps, it may never be a problem. Technically, though, the building inspector could shoot you down if he sees the stumps, since you aren't supposed to build over organic materials (roots, stumps ...
Mar 09, 2007 I want to do some paving, around the back extention (a 'built over' slab) but the pier footings under the house slab suck . The pier footings were not 'tidyed up' and the top of them come too far up the slab. Basically the piers were poured and the top of the concrete was not smoothed, the slab form laid over the piers and the slab poured.
Eventually, the concrete slab could become worn down due to traffic, moisture, or temperature changes. This leads to a rough, uneven surface that needs to be ground smooth again. At Polyjacking.com, we can make your concrete look new again with concrete grinding. Concrete grinding can be performed after the concrete has been leveled and ...
You may have to grind down the floor or use a self-leveling compound like Bostik SL-150 to even out the slab. If you take the time to examine the concrete and set about to fix any potential problems, you will save yourself time and energy later on. After all, if concrete slab is in poor condition, your hardwood floors are more likely to fail.
How to Level Concrete Floors: 10 Steps (with Pictures . 17/05/2011 Use a concrete grinder to grind down any particularly high spots Wear eye protection and a face mask, start the grinder’s engine, lay the disc flat against the spot you want to grind down, and move it in a side to side or front to back motion until you grind the bump down to floor level Grind down all the spots you marked ...
Methods of Concrete and Foundation Repair What if you could raise a cracked or sunken slab back to its proper level in less than an hour, with no down time waiting for new concrete or mortar to cure? There are only three choices when it comes to repairing a settled or sunken concrete slab: replace it, grind it, or raise it. Before the use of polyurethane and Poly jacking, the common methods ...
Grind the top of the concrete down to remove any high spots, such as where two concrete slabs meet, and to remove any old paint from the surface. For high spots, use the smaller grinder edger first, then use the larger grinder to even out the surface.
Concrete grinding or sidewalk cement grinding is one method to remove sidewalk trip hazards typically up to 1 1/2″ in height where sidewalks have been lifted by tree roots, shifting soil, etc. Concrete grinding will remove the top finished layer of cement and leave an exposed aggregate finish where the concrete trip area has been removed, but ...
Jul 09, 2020 Concrete grinding and sealing can vastly improve the strength and visual appeal of your existing concrete slab. 3. Surface preparation. To begin the actual concrete grinding process, the surface needs to be prepared. Here, you can select from one of two options: have the existing slab ground down, or pour a new slab.
Oct 24, 2016 Grinding rough concrete. Jump to Latest Follow ... As for how smooth, you can take it down to very smooth if you want. But too smooth becomes slick when wet. Often they use a broom finish to avoid slick. Drag a concrete block over it to see what it does to those lines. Bud .
With years of use though, a concrete floor will wear down, with the once smooth surface becoming roughened or damaged. Slab repair followed by grinding the surface smooth can help, but to regain the smoothness of the slab without unsightly repair patches you'll have to apply an overlay as well.
Concrete Grinding/ Polishing Procedure Cheat Sheet (for existing concrete slab s) ... Hardness can vary greatly from slab to slab. Also check diamonds after a ... This step drops down in grit but is a resin pad and prepares the floor to be polished. This is
Jun 11, 2010 With this instant feedback, the crew quickly learns the grinding times required to remove various depths on a given slab. Allen Face is a regular contributor to CONCRETE CONSTRUCTION, is an ACI Fellow, and a long-time member of ACI committees 302, 360, and 117.
Jun 20, 2010 The houses originally came with concrete slabs, but a previous owner appears to have poured an additional few inches in order to bring the slab up to door level, so I suspect the current slab is probably close to 6-7 (maybe more) thick. DH rented a small hand-held grinder this morning to test a small space and see how it works.
DO pond cure concrete slabs. Pond curing is another great way to cure concrete, and the process is just as it sounds: You form temporary berms around a new concrete slab, and then flood the area ...
After the first cut it is the best to make a finer grinding pass with a 80/100 grit metal bond to remove all score marks from the former 1 st; This diamond’s purpose is to cut out any further inconspicuousness in the concrete, and smooth the slab down a little more.
Jul 30, 2020 You must use a specialized tool to grind concrete; a standard sander won’t do the job. The grinding discs must be metal-bonded diamond discs. Non-diamond discs aren’t hard enough to grind down the concrete properly. Before agreeing to rent the grinder, make sure that it feels comfortable enough for you to use.
Leveling Concrete Using Grinding. For an uneven floor, grinding the concrete floor high spots is your only option. Although this sounds simple, this requires a great level of skill and equipment. These are in addition to the physical requirement in carrying hefty bags of compound and equipment.
Tools Needed to Grind Concrete Floors. Having the right concrete floor grinding tools is essential for achieving a perfectly polished floor. 1.Repair Kits . Before commencing the concrete floor grinding process, it is essential to have the floor checked for any cracks or damages. A floor repair kit will come in handy in case of any repair needs. 2.
Oct 05, 2017 Grinding can be a quick solution, but you really need to find out why the concrete settled (or lifted). If it was just shifting footings the problem may reappear or cause cracking issues and require additional grinding or more long term solutions like injecting polyurethane foam under the sidewalks to stabilize it and/or fill any potential voids.
How soon after the slab has been poured does the concrete grinding/polishing get done? Generally the answer is after the minimum 28-day curing period, however OzGrind have worked with a product supplier and developed a system where the floors can be completed as early as 7-10 days after the slab …
The solution to all the above problems begins with sanding or grinding the concrete floor. This is the first step in repairing or refinishing a floor, and involves the removal of the topmost layer of concrete. The end result is a level floor with a sleek, glossy look, in contrast to the boring, gray appearance of ordinary concrete.
Nov 06, 2020 Use a concrete grinder to grind down any particularly high spots. Wear eye protection and a face mask, start the grinder’s engine, lay the disc flat against the spot you want to grind down, and move it in a side to side or front to back motion until you grind the bump down to floor level.
If you want to know how to polish concrete I'll cover the basic steps it takes to grind and hone the concrete surface to get the desired degree of shine and smoothness you're looking for. The concrete polishing process is similar to sanding wood. The difference is polishing concrete involves using diamond pads instead of sand paper.
The cost to Polish Concrete starts at $5.88 - $6.86 per square foot, but can vary significantly with site conditions and options. Get fair costs for your SPECIFIC project requirements. See typical tasks and time to polish concrete, along with per unit costs and material requirements. See professionally prepared estimates for concrete polishing work.