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What would expect to happen to a sidewalk over the course of years when rainwater continues to soak in to concrete and freeze?
If water is allowed to get into a concrete sidewalk and not allowed to drain and it freezes, the expansion of the water/ice as it crystallizes causes the concrete to crack. If more water settles in the crack and freezes, the crack gets bigger. Each year the increase in the size of the crack is greater because a greater amount of water can fit in the crack, and a greater amount of water has a greater amount of expansion when it freezes.
What else can I help you with?
Who built the Grand Canyon sidewalk?
Sidewalk elves of course! Some of them are buried in the concrete to this day.
Can you really cook an egg on a sidewalk?
Yes of course.
Can you use rainwater to water the garden?
Of course. It is done naturally that way.
What is asphalt concrete type 1 surface course and asphalt concrete type 2 intermediate course and asphalt concrete base and tack coating between courses?
can we use polypropline fibre in concrete
Do hobo's exist?
you idiot of course they do!Every see the guys on the sidewalk who beg for money? that's them!!
I am building a 2'6 wall for a garden that will be filled with dirt should i re-bar the wall?
Yes, if you are constructing this wall with concrete block you will need #5 rebar dowels stubbed out of the foundation at 32" on center. You will also need one #5 rebar running continues in the top course and fill all cells with dowels and top course with either structural grout or concrete.
What do you mean by blinding concrete and mass concrete?
Concrete used as a profile course as blinding concrete Invented in 1964 by a man named Daniel Brady.
What kind of concrete to use for crafts?
I took an art course using concrete and it was normal everyday concrete. We were making stepping stones.
Is sunglass concrete?
Sunglasses are a concrete noun- you can touch them. They are, of course, not made out of concrete. They would be very hard to see through. And rather heavy.
What is the advantage of adding both fine and course aggregate to cement when making concrete?
they give a goodstrength for concrete
What number continues the sequence?
Another invisible number, of course!
How do rivers carry rainwater from the mountains to the Pacific Ocean?
The water course is driven by the force of gravity. Steep in the headwaters, and flatter in the plainlands.
