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How do you put concrete on concrete and make it stick?
you need to have a ''keyway''---that is a groove in the base concrete,can be cut in if concrete has set,if not set,oil a 2x4lightly(lightly) & imbed it into the base concrete flush.
Do vinyl fence posts need to be set in concrete?
yes they need to be set in concrete. depending on your fence, one bag of concrete per post should be enough.
What is the setting time of concrete?
The length of time that concrete takes to set, will depend on the temperature. It would take approximately 4 hours for concrete to set at a temperature of 80 degrees.
How can you permanently retard fresh concrete?
Regular sugar will cause the concrete to never set.
What is the main use of anchor bolts in construction?
Anchor bolts are used to secure items to concrete. They can be wet-set meaning inserted into the concrete while it is still hardening or the concrete can be drilled and the anchors set in to them.
Why does a flash set happen in concrete?
A flash set can occur in concrete when the cement mixture hardens rapidly due to factors like high temperatures, improper mixing, or the use of certain additives. This can result in decreased workability and potentially compromise the overall strength and durability of the concrete.
Why 2 gypsum is added in the cement?
The construction industry uses both the natural and the synthetic forms of gypsum in Portland cement manufacturing. Although the amount of gypsum used in the mix represents a small percentage of the volume of all ingredients, gypsum has important functions.
How do you put concrete on concrete and make it stick?
you need to have a ''keyway''---that is a groove in the base concrete,can be cut in if concrete has set,if not set,oil a 2x4lightly(lightly) & imbed it into the base concrete flush.
Can you set mailbox post in concrete?
Yes, you can set a mailbox post in concrete for added stability and durability. To do this, dig a hole about one-third the length of the post, place the post in the hole, and then fill the hole with concrete mix, ensuring the post is level. Allow the concrete to cure according to the manufacturer's instructions before attaching the mailbox. This method helps prevent the post from leaning or being easily knocked over.
How do you prevent concrete honeycomb?
Honeycombs in concrete are empty spaces that decrease the structural integrity of the concrete. These can be eliminated by rolling the concrete tight after pouring it.
Do vinyl fence posts need to be set in concrete?
yes they need to be set in concrete. depending on your fence, one bag of concrete per post should be enough.
How can I effectively use concrete molds for my project?
To effectively use concrete molds for your project, follow these steps: Prepare the mold by cleaning and lubricating it to prevent sticking. Mix the concrete according to the instructions, ensuring it is the right consistency. Pour the concrete into the mold, tapping it to remove air bubbles. Allow the concrete to set and cure according to the recommended time. Carefully remove the mold to reveal the finished concrete piece.
Can ants damage concrete?
Over time, ants can damage concrete. However, if you keep all the cracks in concrete caulked, it will prevent the ants from damaging the concrete.
Why should defective concrete be immediately repaired on new or old concrete?
to prevent further damage
What is the setting time of concrete?
The length of time that concrete takes to set, will depend on the temperature. It would take approximately 4 hours for concrete to set at a temperature of 80 degrees.
What is the best method to prevent tile debonding?
This answer pertains to tile set on a concrete substrate! Assuming your thin-set is properly mixed with correct water ratio, the substrate is free of any bond breakers, and it is troweled for the type of tile your using, the most common problem is moisture coming up through the slab collecting at the tile/substrate interface. If you are in a humid climate the HVAC will pull moisture out of a concrete into the less humid interior. Water breaks down the thin-set bond to the tile and emulsifies other mastic's/glues intended to secure a VCT product. The best way to prevent moisture from wicking through a slab is to waterproof the concrete substrate with a product that will will stop this moisture transfer. It will also prevent the alkali in a concrete from coming out to a surface where it reacts with an atmosphere. Alkali burn causes a paint to bubble, peel and blister off a concrete. With a waterproofed concrete this alkali does not migrate out and form efflorescence salts. When you stabilize concrete, contaminates don't enter and moisture doesn't travel to a surface.
How do you produce concrete blocks?
You pour liquid concrete into a frame and let it set.
