The Indian Standard IS 456 Amendment No. 6, released in 2024, updates the code of practice for plain and reinforced concrete by incorporating new sustainable cement types like LC3 and revising mineral admixture limits, such as limiting fly ash to 35%. The amendment also introduces high-strength concrete grades up to M100 and reinforces restrictions on using sea water to enhance structural durability. For a detailed breakdown of the amendment, see this Scribd document .
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Recommends enhanced guidelines for using materials like Silica Fume, Metakaolin, and Ground Granulated Blast Furnace Slag. The Indian Standard IS 456 Amendment No
This is a deep report regarding the search query For a detailed breakdown of the amendment, see
While IS 456:2000 remains the active base code, the Bureau of Indian Standards (BIS) has also circulated a , titled IS 456:2025 ("Structural Concrete: Code of Practice"), which is expected to eventually replace the current standard. Key Highlights of Amendment No. 6 (June 2024)
The BIS periodically "reaffirms" standards. The latest reaffirmation in 2021 confirms that Amendment No. 4 remains current without technical changes. No new numbered amendment has been issued after 2013 as of 2026.
: Updates to characteristic compressive strength compliance and sampling frequencies. www.scribd.com How to Get the "Good" Version
