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When concrete dries, it shrinks and then cracks. Without the lines, cracks would form randomly in the concrete causing it to break apart. By having the lines, the cracks follow the lines since that is where the slab is the thinnest.
AnswerBecause the sidewalk is made of millions of squares of cement put together and it would be too much work to fill all the lines.
Because the sidewalk is not a continuous pour. They can only pour a few sections at a time. The lines are where one pour ended and another started. Highways and driveways are poured the same way. WITH lines. These lines are also known as stress points, due to expansion and contraction, the weather and the seasons, this keeps the concrete from cracking in the solid portion of the poured form.
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How many syllables does sidewalk have?
The word sidewalk has two syllables. The syllables are side-walk.
Is 3 yards greater than the width of a sidewalk?
Yes. I guess it depends on which sidewalk you're talking about.
Why is important to place gaps at regular intervals in sidewalks?
To prevent sidewalks from cracking in random spots and breaking apart, builders make lines in sidewalks. The technical term for sidewalk lines is contraction joints. Contraction joints are placed in fresh concrete before the concrete dries and has a chance to create its own joints, which we call cracks.
Perimeter of a rectangular sidewalk is 40 ft. The length of the sidwalk is 4 times the width. Find the length and width of the sidewalk?
The width is 4ft the length is 16ft
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.
What is the rhyme scheme in Where the Sidewalk Ends?
The rhyme scheme in "Where the Sidewalk Ends" by Shel Silverstein is AABB, meaning that the first two lines rhyme with each other and the second two lines rhyme with each other.
What are the lines called in the sidewalk?
The separation between squares of sidewalk cement is usually referred to as a crack, although I think that gap might be more accurate.
Do double yellow lines in a residential area with no sidewalk pose a danger to pedestrians?
no they mean that there is no parking
What is a sentence using segment?
When I was walking the lines on the sidewalk reminded me of a segment because theydid not cross.
Is it legal to ride 49cc Pocketbike that goes 30 mph on the sidewalk or just beyond the separating white lines.?
yes
When there are two white lines painted from one sidewalk to the opposite side What is it?
It's called a crosswalk, and it serves as a designated area for pedestrians to cross the roadway.
Is sidewalk Biotic or abiotic?
sidewalk is abiotic
What does a sidewalk mean?
yes sidewalk is an American word.mean to say pavement. sidewalk:-pavement,root
What is the meaning of sharp lines?
When one says "sharp lines," they usually mean lines that have hard and crisp edges, like an ink line made with a full sable brush or a fountain pen. A crayon will give you a chunkier line, one with craggy edges. Similarly, chalk on a sidewalk will not give you "sharp lines."
Suppose that you fall on a sidewalk while rollerblading Do you exert a force on the sidewalk Does the sidewalk exert a force on you Which of these forces may injure you?
Both, you exert a force onto the sidewalk, and the sidewalk "pushes back" with an equal, but opposite force.
What biome is a earthworms biome?
sidewalk in the mornin
What part of speech is the word sidewalk?
Sidewalk is a noun.
