Amendment 6 introduces several critical updates to the 2000 code:
The Bureau of Indian Standards (BIS) has released a draft for the , which represents the most significant change in 25 years. Key shifts include:
IS 456: 2000 Amendment No. 6 (2024) | PDF | Concrete - Scribd
BIS has circulated a draft in 2023-24. Experts expect the final publication by late 2025 or early 2026 . Until then, Amendment No. 4 remains the latest.
After the latest amendment, IS 456 aligns more closely with:
Adds restrictions on using certain cements in underground structures or contact with groundwater in cold climates (predominantly below 15°C).
As of early 2026, the Bureau of Indian Standards (BIS) is working on a revision of the code. However, until the official publication of a new "IS 456:2026" or "2025" version, the IS 456:2000 with amendments 1-6 is the applicable standard. 2. What are the Key Changes in the Latest Amendments?
Updates to the list of permitted cement types for RCC construction.
For legal and structural compliance, you must use the 2000 version including all six amendments: Amendment No. 6 (June 2024): Introduces specifications for composite cement and Portland calcined clay limestone cement
: Updated guidelines on the usage and proportions of mineral admixtures to improve concrete performance Testing Procedures
Expands beyond just "Strength" to include Robustness (fire/blast), Structural Integrity , and Restorability .
IS 456:2000 (Fourth Revision), reaffirmed in 2021. The Latest Amendment: Amendment No. 6 , issued in 2024.
Amendment 6 introduces several critical updates to the 2000 code:
The Bureau of Indian Standards (BIS) has released a draft for the , which represents the most significant change in 25 years. Key shifts include:
IS 456: 2000 Amendment No. 6 (2024) | PDF | Concrete - Scribd
BIS has circulated a draft in 2023-24. Experts expect the final publication by late 2025 or early 2026 . Until then, Amendment No. 4 remains the latest. is 456 latest amendment pdf
After the latest amendment, IS 456 aligns more closely with:
Adds restrictions on using certain cements in underground structures or contact with groundwater in cold climates (predominantly below 15°C).
As of early 2026, the Bureau of Indian Standards (BIS) is working on a revision of the code. However, until the official publication of a new "IS 456:2026" or "2025" version, the IS 456:2000 with amendments 1-6 is the applicable standard. 2. What are the Key Changes in the Latest Amendments? Amendment 6 introduces several critical updates to the
Updates to the list of permitted cement types for RCC construction.
For legal and structural compliance, you must use the 2000 version including all six amendments: Amendment No. 6 (June 2024): Introduces specifications for composite cement and Portland calcined clay limestone cement
: Updated guidelines on the usage and proportions of mineral admixtures to improve concrete performance Testing Procedures Experts expect the final publication by late 2025
Expands beyond just "Strength" to include Robustness (fire/blast), Structural Integrity , and Restorability .
IS 456:2000 (Fourth Revision), reaffirmed in 2021. The Latest Amendment: Amendment No. 6 , issued in 2024.