Is this standard still valid for use?

No, IS 15000:2001 has been superseded and replaced by IS 15000:2019. The 2019 version should be used.

How do I test if the coating is properly bonded to the concrete?

Using a pull-off adhesion test as described in Annex B. A common minimum requirement is a strength of 1.5 N/mm².

What is a 'breathable' coating according to this code?

A coating is considered 'breathable' or water vapour permeable if its equivalent air layer thickness for water vapour diffusion (Sd-value) is less than 5 meters.

Does this code specify which brand of coating to use?

No, it is a performance-based specification. It defines the minimum performance criteria that any coating product must meet to be compliant, regardless of the manufacturer.

IS 15000

: 2001

Surface protective coatings for concrete - Specification

CurrentSpecializedSpecificationBIMMaterials Science · Admixtures and Chemical Products for Concrete

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This standard specifies performance requirements and test methods for surface protective coating systems applied to concrete. It provides a framework for classifying coatings based on their ability to resist chemical attack, bridge cracks, control moisture ingress, and withstand abrasion, aiding in the selection of appropriate protection for concrete structures in various environments.

Specifies requirements for various types of surface protective coatings applied to concrete to enhance durability and appearance.

Quick Reference Values

Minimum Pull-off Adhesion Strength (typical)1.5 N/mm²

Minimum Water Vapour Diffusion Resistance (Sd) for Breathable Coatings< 5 m

Maximum Water Vapour Diffusion Resistance (Sd) for Vapour Barrier> 50 m

Crack Bridging Capability (Class A2)> 0.5 mm at -10°C

Chemical Resistance Test Immersion Period7 days

Impact Resistance (Class II)10 Nm

Practical Notes

Surface preparation is the most critical factor for coating performance; the concrete substrate must be clean, dry, and have a suitable profile (e.g., via grit blasting).

Always consult the manufacturer's technical data sheet for specific application parameters like pot life, re-coating intervals, and required Dry Film Thickness (DFT).

Crucially, this 2001 version is obsolete. For all new projects and specifications, refer to its replacement, IS 15000:2019.