How do you fix concrete cuts?
How to re-pour concrete in saw-cut slab?
- hammer-drill holes sideways into the cut surfaces of the concrete to make holes 3-inch deep for dowels (3/8 rebar that I already have sitting around)
- remove all loose material from the dirt hole.
- clean rocks and concrete out of the fill dirt.
What can go wrong when pouring concrete?
Here are the top concrete pouring mistakes and what you can do to avoid them.
- Underestimating the Amount of Concrete You Need.
- Ordering the Wrong Kind of Concrete.
- Improper Installation of Concrete Forms.
- Using the Wrong Cement-to-Water Ratio.
- Waiting Too Long to Level After Pouring.
- Removing the Forms Too Soon.
How deep should saw cuts be in concrete?
A good rule of thumb is to cut the joints one-quarter to one-third the slab thickness. For a 6-inch-thick slab, that means cutting 1 1/2 to 2 inches deep. Ensure that the saw cut depth meets the structural engineering specifications.
When should you saw cut concrete?
Timing is very important. Joints should be sawed as soon as the concrete will withstand the energy of sawing without raveling or dislodging aggregate particles. For most concrete mixtures, this means sawing should be completed within the first six to 18 hours and never delayed more than 24 hours.
How do you know if you have bad concrete?
Common Signs of Bad Concrete Pouring
- Bleeding. Bleeding refers to excess moisture and water leaching to the surface of poured concrete while the heavier deposits settle to the bottom.
How long is concrete workable?
Concrete remains workable for a little over an hour, although the exact time depends on the type of concrete mix and the ambient temperature; concrete sets faster in hot weather. If you are not used to handling concrete it can seem as though one minute you have a workable ‘slush’ and the next there is a hard surface.
How can I cut concrete without chipping?
Use a standard circular saw, equipped with a corundum or diamond blade, for small tasks. For slabs, it’s best to cut through the top inch, then use a sledgehammer to break off the rest. The jagged edge left below the cutting line provides a good rough edge for the new concrete to bond to.
What are the most common mistakes people make when choosing concrete?
1. Not understanding how much concrete is really needed for a project. Concrete always has three dimensions, and one of the first mistakes people make when choosing concrete is to underestimate how thick the concrete needs to be for their project.
What happens if you don’t use proper concrete techniques?
Poor concrete techniques almost always lead to flaking, deterioration and premature failure. Avoid the top 12 concrete pouring mistakes and you’ll have a project to be proud of for a long time.
What to do if stamped concrete does not seal properly?
A xylene bath (lightly soaking the problem area with a xylene solvent and back rolling) is the first step. If this does not work, you will probably need to strip off some or all of the sealer. For any exterior stamped concrete that will be sealed, and especially pool decks, I have a few hard, fast recommendations:
What happens if you put too much concrete sealer on concrete?
After time, the sealer can also start to delaminate (come away from the concrete or previous layer of sealer), which will only make the cloudiness worse. It sounds like you have reached the point where you have too much sealer, and as you suspected, it is time to strip and start over.