IS 457-1957

标准号：IS 457-1957
发布日期：1957/9/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This code covers general construction practices for plain and reinforced concrete used in dams and other massive structures and aims primarily at rigid control of concrete work with a view to ensuring durability, strength, impermeability and uniformity.1.1.1 Provisions specified in this code are intended to secure for every part of the work homogeneous concrete, which when hardened shall have the desired properties.1.2 This code requires to be supplemented by special instructions, if any, for each job.