5 to 8% air entrainment
5 to 8% air entrainment
(OP)
If I am desiging a 100 feet long and 2 feet high retaining wall with 5 to 8% air entrained concrete for freezing and thawing, do I still need contraction joint?
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RE: 5 to 8% air entrainment
With normal amounts of steel, I would recommend contraction joints at about 25 feet.
RE: 5 to 8% air entrainment
RE: 5 to 8% air entrainment
RE: 5 to 8% air entrainment
RE: 5 to 8% air entrainment
RE: 5 to 8% air entrainment
By the way if the contractor does not pour this whole 100 feet long wall in one pour and does it in the stages with construction joints so than we will NOT need any contraction joint as there isn't a large chunk of concrete setting at any given time?
RE: 5 to 8% air entrainment
I would still insist on 10 foot spacing for contraction joints but the contractor may substitute a construction joint for any contraction joint. Provide an expansion joint at 20 foot spacing.