air entrainment in garage slabs
air entrainment in garage slabs
(OP)
Hi all, new to forum. I am pouring a garage floor slab and need your thoughts on air. The IRC requires air entrainment in residential garage slabs. I specified 5 or 6% air, 4000 psi mix. The place and finish sub advised me not to go with a steel trowel finish with air because of risk of delamination and scaling. I've poured several slabs and never had a problem. Have I just been lucky. Is delamination of slabs with air and hard trowel finish a common problem? Just how serious is the risk? Would you recommend going to a broom finish or ditching the air. I'm in Maryland, freeze thaw is a concern. Your thoughts are appreciated.






RE: air entrainment in garage slabs
RE: air entrainment in garage slabs
RE: air entrainment in garage slabs
RE: air entrainment in garage slabs
Keep the w/c down, use a water-reducing admixture, air content at around 5%, keep the slump to 4" +/- 1" and have at it.
RE: air entrainment in garage slabs
RE: air entrainment in garage slabs
RE: air entrainment in garage slabs
RE: air entrainment in garage slabs