0
penis
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
How long must concrete dry before it rains on it?
First of all, concrete does not "dry" to become hard. It cures, which is a chemical interaction between its water and its portland cement. Usually, a couple of hours is plenty of time for concrete to 'set' enough to not be damaged by rain. The best and strongest concrete never dries out for the first 28 days from pouring it.
How long for bagged concrete to cure?
Concrete never fully cures, but a non-quicksetting concrete should be firm on the surface in about 4-8 hours, and usable for foot traffic or post setting in 36 hours.
One should never cut or weld directly against?
You should not weld on concrete, as it can explode if heated
How can you permanently retard fresh concrete?
Regular sugar will cause the concrete to never set.
How big can a floating concrete slab be?
no matter how big the concrete slab is, it will never float
Is concrete a homogeneous?
Within the concrete, there is cement, aggregate, and water. Cement is simply a glue that holds the rock or other aggregate together. Water activates the cement. Even cement itself isn’t a homogenous mixture, which means concrete could never be homogenous.
Can white cement be used for filling cracks in cement wals etc?
I've never heard the term 'white cement', but there are many good cement crack fillers available. I have used 'Stone Mason Liquid Crack Filler' and DAP Liquid Cement Crack Filler and been satisfied with both. You should look in the cement and concrete aisle in Home Depot. -
How long must concrete dry before it rains on it?
First of all, concrete does not "dry" to become hard. It cures, which is a chemical interaction between its water and its portland cement. Usually, a couple of hours is plenty of time for concrete to 'set' enough to not be damaged by rain. The best and strongest concrete never dries out for the first 28 days from pouring it.
How long for bagged concrete to cure?
Concrete never fully cures, but a non-quicksetting concrete should be firm on the surface in about 4-8 hours, and usable for foot traffic or post setting in 36 hours.
One should never cut or weld directly against?
You should not weld on concrete, as it can explode if heated
How can you permanently retard fresh concrete?
Regular sugar will cause the concrete to never set.
How big can a floating concrete slab be?
no matter how big the concrete slab is, it will never float
What are the treatments for intake of cement from humans through esophagus?
never heard.
Did the Russian gov resolve the Chernobyl accident by covering Chernobyl with cement?
No Covering it with cement will Never work, because the cement can only absorb a certain amount of radiation before it starts leaking through, and this will always happen because there is no way to completely contain it. If you imagine a piece of foam and you run it under a tap, what happens here is it absorbs water, but it can only absorb so much before it starts to leak out. Radiation works in a similar way. Materials like concrete and cement can only absorb so much radiation before it starts to leak through.
Does it expand and contract Even after concrete is dry?
No. Concrete never gets any bigger than the day it is poured.
What materials were used to build the lighthouse?
Wood lighthouses were common before the 19th century because wood was readily available. It was phased out as a primary material due to the susceptibility to fire. Masonry towers were made from rubble stone, cut stone, brick and concrete. Sometimes lighthouses are made with Rubble stone, cut stone, brick, and concrete.
Can you lay a penny floor over laminate?
I'm guessing that you mean penny round tile. If so, no should never lay this over a laminate floor. Laminate floors are floating, so they move and your tile/grout will crack. You are also not supposed tile on top of any form of wood (laminate is recycled hardwood), because it expands and contracts so it will also cause the tile and grout to crack. You should remove the laminate. And then install on top of either smooth concrete, level it or add in cement board. If, however, you actually mean vinyl, then it depends the condition of the vinyl. It's usually better to remove it, but you might be able to get instead pour 1/2 self leveling cement or put cement board on top and then install. Your floor should be smooth and level before installing the tile.
