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Sidewalks have built-in cracks, often referred to as expansion joints, to allow for the natural expansion and contraction of the concrete due to temperature changes and moisture. These joints help prevent the concrete from cracking unevenly, which can lead to structural damage. Additionally, they facilitate drainage and can help manage the natural settling of the ground underneath. Overall, these cracks are essential for maintaining the longevity and safety of the sidewalk.
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If a sidewalk is 3 feet wide and 184 feet long how many expansion joints are needed?
The answer will depend on what material the sidewalk is made from and the maximum range in temperature.
How much concret for sidewalk 5 feet wide 120 feet long depth of 6 inch?
To calculate the volume of concrete needed for a sidewalk that is 5 feet wide, 120 feet long, and 6 inches deep, first convert the depth to feet: 6 inches is 0.5 feet. The volume in cubic feet is calculated as width × length × depth: 5 ft × 120 ft × 0.5 ft = 300 cubic feet. Therefore, you will need 300 cubic feet of concrete for the sidewalk.
How many square feet of a 4 inch sidewalk to a cubic yard of concrete?
81 Square feet.
Please show work. A sidewalk is 20 feet by 14 feet The width of the sidewalk is 2 What is the outside perimeter?
A 2-foot border around a 20 x 14 area makes the area 24 x 18 making the perimeter 84 feet.
How many square feet are in 10 miles of 15 feet wide sidewalks?
10 miles = 52,800 feet, thus there are 52,800 x 15 = 792,000 ft2 of sidewalk (or pavement)
Why does a sidewalk have built in cracks every few feet?
It is because if it was one big piece, the concrete would buckle and break just like bridges.
Sidewalks are built with cracks because in the summer something occurswhat is it?
they r called contraction joints. then every few of those then expansion joint. concrete is going to crack, so make it crack so it can't be seen,under the man made ones. concrete tends to crack symmetrically. so if ur sidewalk is 3 feet wide the contraction joints will be every 3 feet. then expansion joint, 3/4 inch with expansive material, every 4th one.
How many cubit feet in a four by twenty five feet sidewalk?
Impossible to answer - without knowing the depth of the sidewalk !
When you walk bearfoot across a hot sidewalk you feel heat on your feet. explain What is happening with the molecules in both the sidewalk and your feet and in which direction thermal energy is moving?
As you walk barefoot on a hot sidewalk, the sidewalk molecules vibrate more due to the heat, transferring thermal energy to your feet. The heat is moving from the sidewalk (higher temperature) to your feet (lower temperature), causing your feet to feel hot. The increased molecular vibrations in the sidewalk result in the sensation of heat on your feet as thermal energy is transferred.
A sidewalk borders a rectangle play area The play area measure 20 feet by 14 feet The width of the sidewalk is 2 ft What is the perimeter of the outside border of the sidewalk?
84
Why does a person move forward when he or she pushes on the sidewalk?
When a person pushes against the sidewalk, they exert a force in the opposite direction. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. This means the sidewalk exerts an equal and opposite force on the person, propelling them forward.
If you have 152 cubic yards of concrete you are building a sidewalk 6 feet wide by 6 high how many linear feet of sidewalk will you have?
152/(6*6) = 4.22... (recurring) feet.
Which explanation describes the forces involved for a person to walk down the sidewalk?
The person's feet push backward on the sidewalk; the sidewalk pushes forward on the person.
If a sidewalk is 3 feet wide and 184 feet long how many expansion joints are needed?
The answer will depend on what material the sidewalk is made from and the maximum range in temperature.
When heat is transferred from the sidewalk to your feet by what process?
conduction
How many feet before an expansion joint is installed in concrete sidewalk?
10 feet.
What is the average installation price of a concrete sidewalk per square foot?
Unanswerable - too little information on size of wall when finished - a wall 2 feet high would be built very differently to one 10 feet high.
