What are the key performance aspects covered by this code?

The code covers mechanical resistance, serviceability (e.g., deflection), durability, geometrical tolerances, and surface finish (Clause 5).

Does this code specify the concrete mix design?

No, it specifies performance requirements like minimum grade and durability properties (Table 1). Mix design should be done as per IS 10262 to meet these requirements.

What are the tolerance limits for precast elements?

Permitted deviations for dimensions like length, height, and straightness are detailed in Clause 6 and Table 2.

Is this standard applicable to all precast concrete products?

No, its scope is limited to precast concrete products intended for the construction of swimming pools and sports facilities.

IS 16704

: 2018

Performance Requirements for Precast Concrete Products

CurrentSpecializedSpecificationBIMStructural Engineering · Swimming Pools and Sports Facilities

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This standard specifies the performance requirements for precast concrete products used in the construction of swimming pools and other sports facilities. It covers materials, geometrical properties, mechanical resistance, durability, and testing methods. The code ensures that precast elements meet the necessary quality and safety standards for these specialized applications.

Specifies performance requirements for various precast concrete products, including those used in construction of sports facilities.

Quick Reference Values

Minimum concrete strength class for structural elementsM35

Maximum water absorption by mass6%

Minimum cement content for 'Very Severe' exposure340 kg/m³

Maximum w/c ratio for 'Very Severe' exposure0.45

Permitted deviation in length of element (up to 6m)±10 mm

Minimum nominal cover for 'Very Severe' exposure50 mm

Practical Notes

Pay close attention to specified geometrical tolerances (Clause 6) as they are critical for the assembly and water-tightness of pool structures.

Ensure all materials, especially admixtures and jointing materials, are certified as compatible with chlorinated pool environments to prevent degradation.

Surface finish requirements are stringent; verify finishes upon delivery before installation to avoid aesthetic and functional issues like algae growth or injury.