Washington · answered by Verika · verified against sources
What are the curing requirements for concrete pavement in Washington?
Curing must meet one of these methods: (1) Curing Compound: Type 2 liquid membrane-forming compound (1 gal/150 sq ft) applied immediately after finishing (after bleed water disappears) with wind protection; reapply if damaged by rain or traffic. Protect until 2,500 psi strength is reached [1,2]. (2) White Polyethylene Sheeting: Overlap sheets ≥2 ft, secure edges, maintain until 2,500 psi [1,2]. (3) Wet Curing: Continuous fog/mist until 2,500 psi; sprinkling allowed if no runoff [1,2]. Avoid traffic/injury to curing film until strength requirement met [2].
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