Can I pour a 2 inch concrete slab?
If done properly, new concrete can often be poured right over an existing slab. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregate, and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.
What type of concrete is used for stamping?
“I like a mix that has lots of paste—that’s fatty.” He recommends a 5 ½- to 6-sack mix. As mentioned in the section on materials, aggregate size is important in controlling shrinkage and the larger the aggregate the better. For stamped concrete though, large aggregate interferes with the stamping.
Is wire mesh better than rebar?
In summary, rebar vs wire mesh can have costly differences. Rebar remains stronger and ensures consistent contact in the soil where as wire mesh is unpredictable and often results in a week concrete foundation.
Should you put plastic under concrete?
A concrete vapor barrier is any material that prevents moisture from entering a concrete slab. Vapor barriers are used because while fresh concrete is poured wet, it’s not supposed to stay that way. It needs to dry and then stay dry to avoid flooring problems. This is why a vapor barrier under concrete is essential.
How do I make handprints in concrete?
Position your hand, palm down, lightly on the surface of the concrete then press down, keeping the hand as stable as possible. Push down until the concrete surface is near the back of your hand. Pull your hand quickly straight up and out of the concrete. Sign your name under the handprint using a wooden skewer.
Does stamped concrete crack?
Does stamped concrete crack? Stamped concrete is highly resistant to cracking when installed correctly. Even if stamped concrete experiences minor cracking, the cracks are often hard to detect because they will often blend in with the pattern and joint lines.
How do you make concrete imprints?
Imprinting Concrete with Natural Objects
- Collect leaves that are heavily textured with strong vein patterns.
- Place the flattened leaves onto the surface of the wet/uncured concrete.
- Use a trowel to gently press the leaves into the concrete.
- Remove leaves after approximately 45 min. or leave them in place until they deteriorate.
How thick should stamped concrete be?
four inches
What is a concrete detail sentence?
Concrete detail (CD) This sentence is the “what” is happening. It should be either facts, examples, illustrations, evidence, support, plot references, paraphrases, citations, quotations, plot summary, etc. It should be a concrete detail and should start with ‘for example’ or a different transition.
How can I copy handprints in concrete?
Clean and then wax the prints on the sidewalk. Use the tape and cardboard to build a small wall (about 2″ high) around the prints. Use tape to seal the bottom of the wall as well. Mix the POP according to the manufacturer’s instructions and pour into the hand prints.
Is Clay a good base for concrete?
The clay can compress under the weight of the concrete, causing the slab to shift or sink over time. It also can leach moisture from the concrete itself, resulting in uneven curing and a brittle base. With proper preparation, however, it’s possible to pour a slab on clay soil without encountering these problems.
When should I start stamping concrete?
“But, in general, when you can touch the concrete and not have any sand on your hand, it’s about time, when that laitance is crusted enough, to put a release agent on there. Generally, it’s within an hour or two.” Frazier recommends getting enough stamps to cover at least the width of the slab.
How do you write on concrete?
Outline Poems
- Choose an object to be the subject for your poem. Good suggestions for beginners could be favorite animals or favorite foods.
- Draw a simple outline of its shape on paper or on the computer. If you’re using paper, draw with a pencil not a pen.
- Write your poem normally.
Do you have to put rebar in concrete?
This strength is crucial for things like buildings, roads and driveways. Rebar is not necessary for every concrete project. The general rule of thumb is that if you are pouring concrete that is more than 5 inches in depth, you are probably going to want to add in some rebar to help reinforce the entire structure.
Can you stamp old concrete?
CAN YOU DO STAMPED CONCRETE OVER OLD CONCRETE? Stamped concrete overlays can be used on new or existing concrete and on interior or exterior surfaces. They can even be applied to walls and other vertical surfaces.
Is sand a good base for concrete?
Pour concrete over a solid, well-drained base of sand or gravel over clay and other poorly draining soils to provide even support.
What are the 3 parts of a concrete detail?
Concrete is made up of three basic components: water, aggregate (rock, sand, or gravel) and Portland cement.
Can you put a layer of concrete over concrete?
There are situations when pouring new concrete isn’t the most suitable option. For instance, surfaces with larger cracks, heaving or settling conditions, or where height cannot be raised, replacement is a better solution. However, in most cases, you can pour a new layer of concrete onto the existing one.
How do you color concrete?
You can use dyes to color concrete, such as food coloring or fabric dye. The method for coloring concrete this way is to add the dye to the water before mixing it into the dry concrete mix. Adding a food coloring dye won’t make the concrete color as concentrated as it would with a fabric dye.
What is better for concrete patio rebar or mesh?
wire mesh, the short answer is: use both! Concrete driveways that need to carry a heavy load should have both rebar and wire mesh to reinforce the concrete. For a patio, you might be able to get away with using welded wire mesh. But remember, all concrete will crack and all concrete will shrink.
What happens if you don’t seal stamped concrete?
An unsealed, decorative stained concrete surface will show faded colors in a matter of a few months. You could advise your customer that’s what happens with an unsealed project and let them make the decision about sealing, but rest assured that an “I told you so,” from you when the fading happens will not comfort them.
What size rebar do I need for a concrete slab?
Common Rebar Sizes Rebar in patios, basement floors, footings and driveways may vary from size 3 to 6. Contractors sometimes use the “1/8 Rule,” meaning the size of the rebar is 1/8 the thickness of the slab. For example, a slab that is 6 inches thick might have rebar marked as size 6 or 3/4-inch.
What is concrete release agent?
Concrete form release agent, or form release for short, is a product that’s applied to concrete molds, frames and forms to prevent the concrete from sticking as it cures. Don’t forget to apply form release oil to your concrete forms before pouring, even if you cannot find it on the market.
Does stamping concrete weaken it?
Stamped concrete is just regular concrete with dye added & stamped with a pattern. Additional water weakens the concrete bond, AND too fast drying also. The concrete needs to retain its moisture for about 30 days to properly form the crystaline structure that gives it strength.
Should I stamp my concrete?
Generally, you should stamp in the same sequence that you placed and finished the concrete. Start stamping by placing the stamps in the same sequence that you placed and finished the concrete. The stamping crew should complete the first row of stamps before moving on to the next one.
Can you pour concrete over dirt?
Long story short, yes you can pour concrete over dirt.