Standards & Codes
The Indian concrete code family is a toolkit, not a single book — and using the wrong tool is how clauses get misquoted on site. This guide maps the family: IS 456:2000 for the code of practice, IS 10262:2019 for mix proportioning, IS 383:2016 for aggregates, the IS 516 family for hardened-concrete testing, IS 9103:1999 for admixtures and the IS 1199 parts for fresh concrete — and where ACI 211 or BS 8500 fit on international projects.
Each answer links into our full FAQ for the clause-level detail, and into the calculators that implement each code.
The 9 most-asked questions — click any question for the full code-referenced answer
- D-1 What is IS 456:2000 and what does it cover?
- D-2 What is the role of IS 10262 in concrete mix design?
- D-3 What is IS 383 and how does it classify aggregates?
- D-4 What is IS 516 and why is it the basis of cube testing in India?
- D-5 What is IS 9103 and how does it relate to admixtures?
- D-6 What is IS 1199 and what does it specify for fresh concrete?
- D-7 How does ACI 211 differ from IS 10262 in mix design approach?
- D-8 What is BS 8500 and how is it used in international projects?
- D-9 How are IS specifications updated and how often?
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