Moisture under hairline cracks.
The lime content that is found in cement causes cement to heat.
1. What are the causes of unsoundness of cement?
Could be a number of reasons but most common ocur's during the cold winter months. the cold causes the skin around the nail to crack and peel.
you peel away the skin of an onion. to do this you get a knife and peel away the skin just like you peel an apple. but if you mean in a scientific way, i got no idea
Cement can wick moisture from outside that will cause your paint to peel off. Look for a primer that will seal it first, then paint it.
Go to the doctor. You could have a STD.
Improper tampering, bad cement mixture, improper mixture of cement and water during laying.
concrete
cats
Your nail bed may peel away for several reasons, one being that your cuticles are not healthy. You may also have dry skin, or a kidney problem.
No
spray to close..dries to quick.paint to thick