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Why should large concrete slabs be laid with expansion so that they are not touching?
Wiki User
∙ 12y ago
because large slabs of concrete have expansion joints between them.
Wiki User
∙ 12y ago
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Can concrete shrink after it is cured?
Once the moisture is out of the concrete and it is cured it should not shrink - it is however in a state of stress so make sure control joints are added to any large concrete areas that are poured and placed.
Will placing a magnet on concrete damage it?
I don't have an answer but we have several large magnets in the shop I work in. It would appear that when we lower the cranes down and place the magnets directly on the concrete floor it tends to weaken them. I have always heard that placing a car battery on concrete would weaken the battery . Does a magnet act in the same fashion?
Why do concrete roads have gaps between large pieces of concrete?
As the weather varies the concrete expands and contracts. If there were no gaps the concrete would buckle and crack.
What is the advantages of using plum concrete?
Also known as Cyclopean Concrete, this is a variety of concrete consisting of large sized stones(Plums) with interstices filled with concrete. Used mostly in mass concrete works like concrete gravity dams
What is the applications of prestressed concrete?
Applications of prestressed concrete:Used in large diameter concrete pipesUsed in railway sleepersWater tanksPrecast concrete piles to counter tensile stress during transport and erection. used in bridges construction
Why do roads have the gaps between the large pieces of concrete?
They are expansion gaps that allow for the expansion and contraction of the concrete.
Can concrete shrink after it is cured?
Once the moisture is out of the concrete and it is cured it should not shrink - it is however in a state of stress so make sure control joints are added to any large concrete areas that are poured and placed.
Will placing a magnet on concrete damage it?
I don't have an answer but we have several large magnets in the shop I work in. It would appear that when we lower the cranes down and place the magnets directly on the concrete floor it tends to weaken them. I have always heard that placing a car battery on concrete would weaken the battery . Does a magnet act in the same fashion?
What should I be watching for my 5 year old hit his head on concrete has a large goose egg.?
Take him to the hospital!! DUUUH
Why do concrete roads have gaps between large pieces of concrete?
As the weather varies the concrete expands and contracts. If there were no gaps the concrete would buckle and crack.
How might the expansion of water when it freezes explain the cracking of concrete and pothole formation?
Because as a liquid, the water will run into small cracks on concrete or a road surface. When this water freezes it will expand and exert large forces on the sides of the crack, forcing it apart. This freezing and unfreezing cycle may continue several times, causing weaknesses in roads and concrete to break apart over time.
Why underestimate the resistance of concrete to such a large extent when you design concrete columns?
The designers calculate the potential effects of cracking on the concrete columns.
What is dry lean concrete?
A plain concrete with a large ratio aggregate to cement than structural concrete. It is used for filling and not structural duties
What is it about cities that make them micro-climates?
Large areas of asphalt and concrete make cities microclimates.
How much copper sulfate is needed to make the water in concrete pond clear?
HOW LARGE IS THE CONCRETE POND?
As the temperature increases materials with large coefficients of linear expansion increase a lot in size while materials with small coefficients of linear expansion increase a in size?
Large
What state has four large lakes touching it?
Asia and Africa
