ICS 23.020.10; 91.080.40                         CED 02

Revised Standard from Last Update.

1 SCOPE

1.1 This standard (Part 3) lays down requirements applicable specifically to design of prestressed concrete structures, intended for storage or retaining of aqueous liquids. A concrete structure or member can function as liquid retaining, when the amount of liquid permeating through its thickness, under hydraulic gradient, is practically negligible.

The recommendations are generally applicable to the storage/retaining of aqueous liquids having temperature not exceeding 50 °C and no detrimental action on concrete and steel or where sufficient precautions have been taken to ensure protection of concrete and steel from damage due to action of such liquids.

1.2 This standard does not cover the requirements for concrete structures for storage/retaining of hot liquids, hazardous materials and liquids of low viscosity and high penetrating power, such as petrol, diesel and oil. This standard also does not cover dams, pipes, pipelines, tunnels and damp-proofing of basements.

This standard does not cover all the requirements of pressurised tanks, floating structures and tanks having the additional requirement of gas tightness. The selection and design of coatings and linings are not covered in this standard.

1.3 This standard applies to members having prestress in one or more direction. For liquid retaining structures, members not prestressed in any direction shall be designed conforming to IS 456, IS 3370 (Part 1) and IS 3370 (Part 2), and additional requirements, if any, given in this standard for the junction of such members with liquid retaining members.

2 REFERENCES

The following standards contain provisions, which through reference in this text constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

456 : 2000 Plain and reinforced concrete - Code of practice (fourth revision)

1343 : 2012 Prestressed concrete - Code of practice (second revision)

3370 Concrete structures for retaining aqueous liquids - Code of practice:

(Part 1) : 2021 General requirements (second revision)

(Part 2) : 2021 Plain and Reinforced concrete (second revision)

(Part 4) : 2021 Design tables (first revision)

12330 :1988 Sulphate resisting Portland cement - Specification