来自MSN1 个月
How to Finish Concrete
Step 3: Float the surface of the concrete before bleed water appears. Floating concrete embeds the aggregate and begins to pull excess water to the top of the concrete. A handheld float or darby ...
Excess concrete at end of screed pass slows placement. Use evaporation retarders correctly. They need to be applied after initial float pass and not worked into the surface as a finishing aid.