CONCRETE TECH-TIP 13atlanticconcrete.ca/images/Concrete_Tips/Tip_13_Concrete... · Design mix to...
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CONCRETE TECH- TIP 13 Concrete Blisters 1. WHAT are Blisters?
Transcript of CONCRETE TECH-TIP 13atlanticconcrete.ca/images/Concrete_Tips/Tip_13_Concrete... · Design mix to...
2. WHY Do Blisters Form?
3. HOW To Prevent Blisters
Follow These Rules to Avoid Blisters
1. Do not seal surface before air or bleed frombelow have escaped.
2. Avoid dry shakes on air-entrained concrete.3. Use heated or accelerated concrete to
promote even setting throughout the depth ofthe slab.
4. Do not place slabs directly on polyethylenesheeting.
5. Design mix to minimize bleeding.
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