Is 456 Latest Amendment Pdf 2021

You're looking for information on the latest amendments to IS 456, which is a Indian Standard code for plain and reinforced concrete.

4. Tension Reinforcement Limits (Clause 26.5.1.1)

• For beams, the maximum tension reinforcement (Ast) was not to exceed 4% of gross area. Amendment No. 4 reduced this to 2.5% for seismic zones III, IV, and V to avoid congestion and ensure ductility.

Frequently Asked Questions (FAQs)

Q1: Is IS 456 2000 still valid in 2025?

A: Yes. IS 456:2000 with Amendment No. 4 (Reaffirmed 2021) is the current valid code. The draft of IS 456:2024 is under review but not yet enforced. is 456 latest amendment pdf

Key Changes: The 2020 amendment introduces several changes to the standard. Some of the key changes include: You're looking for information on the latest amendments