What is the minimum grade of concrete for precast wall panels?

M25, as specified in Clause 6.1.

What is the maximum allowed water absorption?

10 percent by mass, as per Table 2.

What is the dimensional tolerance for the length and thickness of a panel?

The tolerance is ±5 mm for length/width and ±3 mm for thickness, according to Table 1.

What is the minimum required concrete cover for the reinforcement?

The nominal cover to all reinforcement shall not be less than 15 mm (Clause 5.3).

IS 17564

: 2021

Precast Concrete Compound Wall Panels - Specification

CurrentSpecializedSpecificationBIMMaterials Science · Precast and Prefabricated Concrete

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This standard specifies the requirements for materials, dimensions, physical properties, and testing of precast concrete panels used for compound or boundary walls. It covers aspects like dimensional tolerances, transverse strength, water absorption, and marking for quality assurance.

Covers the requirements for precast concrete panels specifically designed for compound wall construction.

Quick Reference Values

Minimum grade of concreteM25

Minimum nominal cover to reinforcement15 mm

Maximum water absorption by mass10 %

Minimum transverse strength at 28 days4.0 kN

Dimensional tolerance for length/width± 5 mm

Dimensional tolerance for thickness± 3 mm

Practical Notes

Ensure proper handling and erection procedures are followed to avoid cracking the panels, as they are primarily designed for transverse loads (like wind) and not for heavy loads during handling.

Verify the manufacturer's test certificates for compliance with this standard before accepting material delivery.

The stability of the wall system depends critically on the correct installation of supporting columns and foundations, which are outside the scope of this panel-specific standard.