How Do You Cut Concrete Slabs

Oct 10, 2007· Agreed, but if you can only get a 115mm one, then cut part way thru then tap with a bolster - the slab will break well enough. It just depends on the quality of the cut edge that you are after. Don't forget, if you cut concrete slabs, you'll simply expose the concrete inner, so arrange for that face to be hidden.

Sep 07, 2009· I need to cut off an extra concrete on one side of the concrete path (100 mm thick) left by contractors. I can ask them to do it only after 90 days maintenance period (new house). I have Makita 235mm circular saw and was thinking to buy TTSUP7 super turbo 180 mm diamond blade and use it.

Jun 15, 2018· For thin slabs of concrete, use a sledgehammer to break it up. If the concrete is too thick to break up with a sledgehammer, you can use an electric jackhammer instead. Whichever tool you use, use a pry bar to lift and remove the pieces of concrete after you break them up.

How much does concrete saw cutting cost? The costs of saw cutting a concrete slab are solely dependent on the size of the slab surface and the condition/location of the wall.

Don't Cut the Concrete Slab ... We discussed cutting the slab, somehow trenching around the slab and tying in to our water supply somewhere in the kitchen, ...

Cutting concrete can be a daunting task for a DIYer. But, it’s easier than you think. Whether you're cutting concrete blocks or slabs, walls or floors, here are some simple steps to cut through concrete safely and efficiently.

You do not want the ... What are methodologies in cutting of pouring concrete slabs in a ... where the control joint will be cut in the concrete the day ...

Make sure you get a concrete slab that will last as long as your house stands. Need a new concrete garage floor? Make sure you get a ... cut into the wet concrete to ...

Sep 10, 2007· Update: should have clarified -- it's back patio slab -- older house. Water drains towards the house and want to route it away. Thought about the concrete saw - but that would work for the vertical - how do you cut along the horizontal to get the cut …

If you are not planning to accommodate a 60 tonne Abrams tank in the room, it will be OK. However, do make sure that the water-proofing under the slab where the cut …

You will often need to cut your pavers when laying them. Learn how to cut pavers with this instructional step by step guide from Bunnings Warehouse.

Limestone slabs are one of the hardest materials used to construct homes and buildings. This is why cutting them should be done only by experts. However, there are a lot of people who want to do do-it-yourself (DIY) home projects involving limestone slabs, thus here are some of the tips on how to cut limestone slabs like an expert.

This Old House general contractor Tom Silva shows how to resurface an uneven concrete slab. ... Cut the rail along the scribed line ... How to Level a Concrete Floor.

Pouring & Finishing Concrete Slabs. Concrete is one of the most economical, ... Cut in control joints using a groover and straight-edge ...

Lay the slab on top of level of sand. Do not sink the slab into the sand; allow it to rest on top. Turn the grinder on and follow the guideline. Depending on the thickness, you may have to work back and forth allowing the grinder to cut deeper and deeper, rather than cutting through the slab on one pass. Draw a cutting guideline on the surface of the …

When to Saw Control Joints. ... Using this equipment, you can place concrete in the morning, then cut the slab during regular working hours the same day.

Jun 21, 2011· now if you needed to cut a square corner out !! lol Funnily enough the bigger grinder is easier to get in a straight line... plus the motor, usually, is bigger and can cope with the effort of cutting through a concrete slab.

Post-tension cables are steel wires inserted into plastic sheathing laid in place while pouring the concrete slab. Once the slab cures, qualified personnel apply tension and grout the cables. Contractors sometimes need to drill or cut into a post-tensioned slab for repair or renovation work.

Saw-cut joints should be done within 4 to 12 hours after the concrete has been finished. Keyed joints are not recommended for industrial floors. Dry-cut joints should be made between 1 to 4 hours after completion of finishing. The pre-molded joint filler should be used to separate slabs from building walls or footings.

They have a cutting edge or bit that makes narrow grooves in the slab. For a 4-inch slab the depth of the cutting edge should be one inch, for a 6-inch slab the edge depth should be 1.5 in, and for an 8-inch slab the edge depth should be 2 inches.

Cutting post tension cables can be very dangerous. Structural engineers and contractors in San Diego, Orange, and Los Angeles counties use post tension cables in residential concrete slabs to offset the effects of expansive soil conditions that exist in most of southern California.

Jun 15, 2018· How to Break Up Concrete Three Methods: Removing a Whole Slab Removing a Small Portion Disposing of Broken Concrete Community Q&A You may need to break up a section of concrete to reach an underground utility in need of repair, or perhaps you're ready to turn a paved area into a green space.

Sep 10, 2007· Update: should have clarified -- it's back patio slab -- older house. Water drains towards the house and want to route it away. Thought about the concrete saw - but that would work for the vertical - how do you cut along the horizontal to get the cut …

Mar 22, 2008· Best Answer: Can you rent one? ... Cutting Concrete Slabs ... This Site Might Help You. RE: how could i cut paving slabs in half without buying an expensive cutter ...

You do not want the ... What are methodologies in cutting of pouring concrete slabs in a ... where the control joint will be cut in the concrete the day ...

How to Score and Acid Stain a Concrete Slab Porch or Patio ... and set the depth of cut on the saw to 1/4 ... I want to Score and Acid Stain my Concrete Slab Patio.

Concrete forms and pouring a concrete slab foundation can be intimidating. Your heart races because you know that any mistake, even a little one, can quickly turn your slab into a big mess, a mistake literally cast in stone.

Make sure you get a concrete slab that will last as long as your house stands. Need a new concrete garage floor? Make sure you get a ... cut into the wet concrete to ...

Cutting concrete is a tough job, but it doesn't have to be hard. Whether you're cutting concrete blocks or slabs, walls or floors, try a concrete saw.

Do not twist the saw blade. Do not let the blade spin in the cut, as this will increase wear on the bond. When cutting concrete with heavy rebar use blades with soft metal segment bonds; When cutting concrete with heavy rebar use blades with soft metal segment bonds use required PPE.

The best time to saw the slab is after the concrete has cured enough that you can safely walk on it but before it is completely dry. It should still look damp and slightly dark. Depending on the humidity and the consistency of the concrete when you poured, this could take six to 24 hours after the pour. For small slabs, use a heavy-duty circular …

A 7” circular saw, for instance, can only cut to 2-¼ inches deep, meaning you’ll need to sledgehammer the rest of the concrete away; a 14” wet-cutting blade attached to a concrete-cutting saw, on the other hand, gets you to 4-5/8 inches of clean cut.

Do not attempt to cut a concrete slab with a blade meant for wood. Option 3: Use a Table Saw If you have access to a table saw, use it to cut the concrete pavers. Again, you will have to change the blade to either a carbide or diamond-tipped variety. Most table saws have more power than a hand-held saw, so one pass ought to do the trick. Like ...

The cut-off concrete saw is used to cut contraction joints, sometimes called control joints, in a concrete slab. The joints are cut to encourage the concrete to crack where a joint has been pre-cut instead of in the middle of the slab. Cut-off saws are most often used on decorative stamped concrete patios, or driveways and pool decks where ...

Sometimes concrete cracks before the saw can cut the joint without causing raveling. In these cases, consider using a lightweight saw that allows you to cut within a few hours after final concrete finishing. Using this equipment, you can place concrete in the morning, then cut the slab during regular working hours the same day. This eliminates ...

Sep 29, 2005· RE: When to cut control joints in concrete slab? SlideRuleEra (Structural) 29 Sep 05 15:40 This is the type situation where you have to pick the best of some bad options. Your contractor should have planned the the location of the saw joints in advance and left "gaps" in the wire mesh along those lines. As you have read, the cutting …

"You can only cut 5-1/2 inches with a 14-inch blade on a cut-off saw." A 2 x 4 shot into the concrete wall guides the smaller saw along the cut. While the track saw will stay within 1/16-inch accuracy, you can maintain 1/8 to 1/4-inch with the Ring Saw -- with practice. "Dennis Smith, my cut-man, likes the precision of the track saw better ...