ACI 306.1-90 (R2002) PDF Download

ACI 306.1-90 (R2002) standard focuses on the necessary preparations and measures to be taken before and after the placement of concrete in cold weather conditions. The standard is designed to assist engineers and architects in selecting the appropriate requirements for a specific project by providing a comprehensive set of mandatory and optional guidelines.

Before the placement of concrete, the standard emphasizes the importance of thorough preparations. This includes determining the appropriate concrete mix design and its constituents, as well as addressing any potential issues related to low temperatures. The standard also provides recommendations for the protection of concrete during the curing process. This is crucial in cold weather conditions because low temperatures can negatively affect the strength development of concrete.

Furthermore, the standard also includes provisions for the protection of newly placed concrete. It provides guidance on effective techniques to prevent the detrimental effects of freezing and thawing on freshly poured concrete. These measures include the use of insulating materials, temperature monitoring, and the application of suitable protective covers.