Plain & Reinforced Concrete — Code of Practice

Covers design and construction of plain and reinforced concrete structures. The primary structural design code for all RCC construction in India.

Key clauses — Rebota's plain-English summary

Paraphrased for working engineers, not a verbatim reproduction of the standard. For compliance documentation, tender submissions, or any use requiring the exact clause text, refer to the official IS 456:2000 document published by the Bureau of Indian Standards (BIS) — this summary is an interpretation aid, not a substitute for it.

• Clause 26.4 — Nominal cover to reinforcement (moderate exposure: 30mm for columns/beams)
• Clause 26.1 — Development length: Ld = φ·σs / (4·τbd)
• Table 5 — Maximum water-cement ratio by exposure condition
• Table 11 — Minimum grade of concrete for reinforced members (M20 minimum)
• Clause 32.5 — Slenderness limits for columns