Is 456 Latest Amendment Pdf Jun 2026

To ensure your designs comply with the most recent Indian Standards, you must use the original IS 456:2000 document in conjunction with all six published amendments 1. Key Updates in Amendment No. 6 (April 2024) New Cement Types : Inclusion of Composite Cement (IS 16415) and Portland Calcined Clay Limestone Cement (IS 18189) for use in reinforced concrete Mineral Admixtures

The amendment tightens the controls on the use of Fly Ash and Ground Granulated Blast Furnace Slag (GGBS) to prevent durability failures like carbonation:

To ensure consistent concrete quality, the amendment now mandates that the amount of admixture added to a mix must be recorded in the production record. Furthermore, . is 456 latest amendment pdf

A comprehensive "Fifth Revision" is currently being finalized by the Bureau of Indian Standards (BIS) . Key features expected in this major update include: Performance-Based Design

Focused on initial minor corrections to typos and cross-references. To ensure your designs comply with the most

Expands beyond just "Strength" to include Robustness (fire/blast), Structural Integrity , and Restorability .

| Criteria | Description | | :--- | :--- | | | Ensures the structure can withstand all design loads without collapsing (i.e., strength). | | 2. Serviceability | Limits deflection, cracking, and vibration to ensure the structure is functional and comfortable for users. | | 3. Durability | A new core requirement ensuring long-term performance against environmental exposure, like carbonation and chloride attack. | | 4. Robustness | Requires designs to resist accidental actions like fire, blast, and impact, preventing disproportionate collapse. | | 5. Integrity | Ensures the structure can maintain its load-carrying capacity even after a local failure. | | 6. Restorability | Addresses the ability of a structure to be easily repaired and restored to its original condition after an extreme event. | Furthermore,

The IS 456:2019 amendment introduces several key changes, including:

While IS 456:2000 remains the legally binding code of practice, structural engineers and construction professionals must stay informed about the latest updates, specifically and the upcoming IS 456:2025 Draft . Current Status: IS 456 Amendments at a Glance