Construction
AEA
FEATURES
General Properties: Anionic surfactants (e.g., vinsol resin, alkyl sulfates); typically dark amber liquids or powders.
Synergistic Role: This is a delicate "bubble sizing" synergy. The AEA creates the necessary micro-foam (10-100 µm), while the defoamer selectively collapses the unstable macro-bubbles (>1 mm) generated by mixing, without destroying the AEA's beneficial micro-bubbles.
Performance Benefits:
Optimizes Air Void System: Ensures the correct air content and spacing factor for maximum freeze-thaw durability.
Removes Macro-Bubbles: Eliminates large, unstable voids that would otherwise weaken the concrete structure.
Stabilizes Fresh Concrete: Prevents excessive air fluctuations during pumping and transport, ensuring consistent slump and air content at the job site.
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