The small holes or pits on old concrete statues are likely due to a natural process called spalling. This occurs when water seeps into the concrete, freezes, and expands, causing small pieces of the surface to break off over time. Additionally, environmental factors such as air pollution or weathering can contribute to the deterioration of the concrete surface.
not normally. it depends on what you are trying to accomplish. if you need a thin layer than you can pour a thin set layer which hardens and adheres better than concrete. if the added part is thicker you can drill holes in the old and put re bar in then pour on top to help tie the two together.
Most Greek statues are broken because they are thousands of years old
Black holes came from old big stars that went supernova as it dies. Supernova causes the star to collapse into a black hole
stress in old concrete
yes,you use acid
It depends on how large a hole you want to leave One way is to get the smallest concrete cutting disk you can hire and cut a square piece of concrete with the old anchor in it drill some holes in the side of the newly exposed concrete put pins in them sticking out so that when you refill the hole with new concrete and the new anchors the new concrete can't start moving. Use stainless steel for the pins, they can be bolts or any thing you can find, so long as they don't rust and are reasonably strong.
The main character in the book "Holes," Stanley Yelnats, is fifteen years old.
None. All old statues or idols were removed when prophet Muhammad (PBUH) got control of Makkah (or Mecca).
Statues get worn out because the acid is like rain to the statues sometimes it can be more acidic than other times, it also depends on the type of rock that gets worn out.:)
In the novel of Holes Stanley Yelnats is fifteen years old...
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