Concrete Mix and AE?
Concrete Mix and AE?
(OP)
I will admit that I really don’t know that much about concrete mixes so please forgive my question.
I have a project that is in the design phase in the north east. We will soon be issuing drawings in a dramatic race to beat the cold weather. The project is going to be constructed of tilt up panels. Due to the small site the panels are going to be cast on the SOG for the final building meaning that after the foundation is poured the SOG is coming next.
My concern is in the concrete mix for the slab. Usually we specify an air entrained concrete for concrete exposed to freezing and thawing temperatures during construction or during the life of the concrete. However, we avoid using an AE mix for slabs due to creating serviceability issues. Should I be concerned about not using an AE concrete mix for the SOG when it is will most likely be exposed to the freeze thaw cycles during construction?
I have a project that is in the design phase in the north east. We will soon be issuing drawings in a dramatic race to beat the cold weather. The project is going to be constructed of tilt up panels. Due to the small site the panels are going to be cast on the SOG for the final building meaning that after the foundation is poured the SOG is coming next.
My concern is in the concrete mix for the slab. Usually we specify an air entrained concrete for concrete exposed to freezing and thawing temperatures during construction or during the life of the concrete. However, we avoid using an AE mix for slabs due to creating serviceability issues. Should I be concerned about not using an AE concrete mix for the SOG when it is will most likely be exposed to the freeze thaw cycles during construction?






RE: Concrete Mix and AE?
With air entrainment the bleedwater comes up slower than without air so this sometimes fools the finishers who get on the slab for troweling too soon.
RE: Concrete Mix and AE?
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Concrete Mix and AE?
If you have the potential for freeze thaw, use the AE mix.