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The last thing you want is a nicely poured slab and control joints that look like you cut them while blindfolded with a dull handsaw. You went 10 days and no cracks, that's awesome, time/fate took the guess work out of this for you, big-time. Fire up the saw and Pitter Patter, let's get at er'. Remember, two guarantees in concrete: Fire and Theft.
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Control Joints are not intended to stop cracking but rather control cracking. It is best to cut joints as early as possible either while finishing with a concrete groover or within 6-18 hours after finishing with a concrete saw. Plan out your control joint spacing 24-36 times the depth of your concrete slab.
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Cutting concrete after 2 days is not recommended as the ideal time is within the first 6 to 18 hours. Does cutting concrete weaken it. Cutting concrete does not inherently weaken it if done correctly. When to cut control joints in concrete slab. Control joints in a concrete slab should be cut within the 6 to 18-hour window post-pour to prevent.
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As it turned out, the concrete contractor assigned the crew to a morning pour in a different town. The foreman, having given me the advice about the control joints, felt guilty about showing up late. He arrived at noon, roughly 24 hours after the pour, and went right to work. They cut 5 control joints.
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Learn when it's too late to cut concrete and discover the best tools and techniques for successful concrete cutting. Read on for tips on concrete saws, removal, demolition, and more. Skip to navigation Skip to content. Your Cart. Call Us Toll-Free: 616 747 8433 [email protected] MENU.
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Timing is critical for saw-cut joints; cutting too soon spoils the concrete while cutting too late fails to fulfill the purpose. Typically concrete joints should be cut in less than a day, but the specific timing depends on numerous factors, including local conditions, weather and concrete mix.
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when is it too late to cut concrete. December 17, 2022 by admin. It's generally best to cut concrete within the first 24 to 48 hours after it's poured, before it fully hardens .After that, it can become increasingly difficult to cut without causing cracks or other damage. However, the exact timeline for when it's too late to cut concrete.
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A trial cut on a test area can help you know if the concrete is cured enough — if the test changes the texture of the concrete's surface, it needs longer to cure. So, when is it too late to cut concrete? All things considered, after the 24-hour mark, you've lost your chance to cut effective concrete control joints.
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Cutting too early causes raveling, an effect created by the saw blade pulling the aggregate out of position, leaving a messy, weakened edge along the cut. This also causes undo wear on diamond concrete saw blades. Sawing too late can result in uncontrolled cracking as the concrete contracts during curing.
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Concrete is a strong and durable material that is commonly used in a wide range of construction projects. It is typically poured into forms and allowed to cure, or harden, before it is used to create structures such as foundations, floors, and walls. Cutting concrete is often necessary to create specific shapes or to make […]
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Use a green concrete saw to make your cuts, as they are excellent for making straight cuts. Additionally, their light weight design and polyurethane wheels will not damage your concrete while walking the saw over the concrete. Your cuts should be made between 1/4x to 1/3x the slab thickness. So, a slab of 6 inches should have joint cuts made at.
CONCRETE IS HERE!!! BUT IS IT TOO LATE??? YouTube
2. Circular Saw. If you do not want to buy or rent a concrete saw, or you already have a normal circular saw laying around, this is another tool that you can use to cut concrete, as long as you have a diamond blade that is designed for cutting concrete. A circular saw fitted with a concrete cutting blade is ideal for relatively small jobs.
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This is because the concrete is still soft and pliable at this point, and it will be easier to cut without damaging the surface. However, it is still possible to cut concrete after it has cured.
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They feature automatic depth control and sawing speeds from 7 to 30 feet per minute. Sawcut depth is up to 13/8 inch and sawcut widths range from a 1/8-inch straight groove to a 1/2-inch T-cut. Electric-powered lightweight models use a smaller-diameter saw blade and cut notches 3/4- to 1-inch deep at sawing speeds of 4 to 11 feet per minute.
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Cut for 30 to 45 seconds. Step 8. Remove the saw from the concrete and let it spin freely; this provides an opportunity for the saw blade to spit out any dust clogging it up and cool down.
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If you cut a concrete slab too late, uncontrolled cracking will occur as the concrete contracts during curing. Sawing can start anywhere from three to six hours after the concrete is poured, depending on the weather conditions. The best way to determine whether the slab is ready is to make trial cuts to check for raveling.