Is IS 11466 still a valid standard for use?

No, it has been officially withdrawn by BIS and is replaced by the IS 16860 series of standards published in 2018. It should not be used for new designs.

What is the primary test specified in this code?

The primary test is the pull-out test, detailed in Annex A, which measures the anchor's load-carrying capacity and displacement under tensile load.

What material is specified for the anchor bolts?

The standard specifies steel conforming to standards like IS 2062 or IS 1570, with minimum tensile and yield strengths defined in Table 1.

What is the minimum concrete strength required for testing anchors as per this code?

The test block for anchor performance evaluation should be made of concrete with a minimum characteristic compressive strength of M20 grade.

IS 11466

: 1995

Mechanical Anchor Fasteners for Use in Concrete - Specification

CurrentSpecializedSpecificationBIMStructural Engineering · Fasteners, Bolts and Anchors

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This standard specifies requirements for materials, dimensions, and performance of mechanical anchor fasteners used in concrete. It details test methods, like the pull-out test, to verify their load capacity and displacement characteristics, ensuring safety and reliability of structural and non-structural connections.

Specifies the requirements for mechanical anchor fasteners intended for use in concrete.

Quick Reference Values

Minimum grade of concrete for testingM20

Minimum tensile strength of steel (e.g., IS 2062 E250)410 MPa

Minimum proof load for testingTwice the safe working load

Maximum displacement under proof load0.8 mm (for M12 bolt size)

Minimum thickness of zinc coating (hot-dip)45 microns

Practical Notes

CRITICAL: This standard has been withdrawn and superseded by the IS 16860 series (2018). For all new projects, the IS 16860 series must be used.

Anchor performance is highly dependent on correct installation. Strictly follow manufacturer's instructions for hole diameter, cleaning, and tightening torque.

The performance values in this standard are for uncracked concrete. For seismic zones or areas where concrete cracking is expected, refer to modern codes like EOTA technical reports or the superseding IS 16860.