Need Info On Cement Properties
Four months ago I had a contractor build a new concrete front stairway and landing to the main entrance door. The landing is 4 1/2' long with 6 steps. My problem...in the time that has passed,
the landing is starting to show hairline fractures about 12" to 24" long. Also the steps have nickel size craters where the "skin" flaked out and these are 1/8" deep. In the Chicago land area where I live, winter and these problems do not go well together. Frost wedging is what destroyed the original stairs. I'm having the contractor come back to see these problems and need to be armed with information as to why his work is doing this. BTW, the stairs were poured in May, it's now September. They haven't even seen winter yet.
Thanks In Advance, Dv