Cách thức và thời điểm sử dụng chất làm chậm hơi (ACI 302.1)

Jason Spangler, Phó Chủ tịch Kinh doanh của Wagner Meters, trình bày hướng dẫn ACI 302.1 của Viện Bê tông Hoa Kỳ về thời điểm cần thiết phải sử dụng lớp cản hơi nước cho sàn bê tông và vị trí đặt lớp cản hơi nước đó.

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