IS 457 : 1957 Code of practice for general construction of plain and reinforced concrete for dams and other massive structures

1 Scope

1.1 This code covers general construction practices for plainand reinforced concrete used in dams and other massive structuresand aims primarily at rigid control of concrete work with a view toensuring durability, strength, impermeability and uniformity.

1.1.1 Provisions specified in this code are intended to securefor every part of tile work homogeneous concrete, which whenhardened shall have the desired properties.

1.2 This code requires to be supplemented by specialinstructions, if any, for each job.

2 References

IS 2 : 1949Rules for rounding off numerical values

IS 226 : 1955Specification for structural steel

IS 269 : 1951Specification for ordinary, rapid-hardening and low heatportland cement

IS 383 : 1952Specification for coarse and fine aggregates from naturalsources for concrete

IS 432 : 1953 Specification for mild steel and hightensile steel barsand hard-drawn steel wire for concrete reinforcement

IS 455 : 1953Specification for portland blast furnace slag cement

IS 456 : 1957 Code ofpractice for plain and reinforced concrete forgeneral building construction

IS 460 : 1953 Specification for test sieves

IS 515 : 1959Specification for natural and manufactured aggregates for use in mass concrete

IS 516 : 1959 Methodsof test for strength of concrete