# How many feet before an expansion joint is installed in concrete sidewalk?

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10 feet.
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# What should be the thickness of a concrete sidewalk?

Answer . It depends on the size of the sections, but generally, no less than 4 inches.

# What is the use of expansion joints in reinforced concrete structures?

Bridges are subjected to incredible forces of wind heat and cold. They need to expand and contract to prevent them cracking or buckling. Expansion joints are devices that are

3.50

# What is expansion contraction joint how concrete expands contracts?

Concrete expands as it gets warmer and contracts as it gets colder. Left to itself these size changes can lead to cracks occurring, if different parts of the structure heats u

# If a sidewalk at your house measures 48 wide 4-inches thick and is 40-feet long how many cubic feet of concrete are in the sidewalk?

53 and 1/3 cubic feet, concrete is normally sold buy the cubic yard, this would be 1.975 cubic yards. Figure on 2.25 CU yards to be safe. You do not want to run short when pou

# Why do concrete roads have compression expansion joints?

Concrete pavement always develops cracks. Unless expensiveadditives are included, the pavement block will shrink slightlyduring curing - and soon crack. Pavement expands when

# If a sidewalk is 110 feet long by 4 feet wide and 4 inches deep how many cubic feet of concrete will be required for the driveway?

147 cubic feet of cement are required.

# Why are many bridges built with expansion joints in them?

Hot weather causes the metal the bridges are made of to heat up and expand. If there was no space for them to expand then the bridge would either crack it's foundations or tea

81 Square feet.

# Does concrete paint need to be removed from concrete before installing self adhesve tile?

No, it's okay to leave on.

# When installing a new PC should you install expansion cards before of after you install the OS?

Usually after. Install the basic or minimum components first: motherboard, CPU, RAM, hard-drive and optical drive. If the motherboard does not have built-in graphics (most do

# How do expansion joints in a sidewalk keep the concrete from cracking?

Expansion joints allow the concrete to expand and contract with temperature changes which prevents it from cracking.

# Why does the expansion joints in a sidewalk get narrow in the summer and get wider in the winter?

In heat the sidewalks contract as when the winter comes the coolness cause's the sidewalks to contrast.

# A new sidewalk will be 4 feet wide 200 feet long and filled to a depth of 6 inches with concrete. how many cubic yards of concrete are needed?

Approximately 15 cubic yards of concrete are needed for the new sidewalk. Volume of concrete needed = 4 feet x 200 feet x .5 feet = 400 cubic feet 400 cubic feet = 400/27 cubi

15

# How many yards of concrete do you need for sidewalk that is 4 inches deep by 4 feet wide by 100 feet long?

Five. 100 feet times 4 feet times 1/3 foot (4") is 100*4/3=133.33...cubic feet I believe a "yard of concrete" is a cubic yard and so = 3 3 = 27 cubic feet 133.33 / 27 = almo

# How do you install expansion joint in reinforced concrete?

Expansion joint's specification depends structure to structure. It depends upon its use rather the purpose it is for. Material used for expansion joint is Neoprene sheet of 5