IS Code Library.
30+ Indian Standards relevant to ready-mix concrete. Quick reference. Key clauses. Cross-referenced. Updated for current versions.
Concrete Mix Proportioning - Guidelines
Step-by-step procedure for designing concrete mixes for normal, high-strength, and self-compacting concrete. Replaces the 2009 edition with updated tables for blended cements and admixtures.
Fresh Concrete - Sampling and Testing
Methods for sampling fresh concrete and conducting fresh property tests. Replaces IS 1199:1959 in modern multipart format.
Fresh Concrete - Slump Test
Specifies the slump cone test procedure — apparatus, filling, lifting, measurement, and types of slump (true, shear, collapse).
Fresh Concrete - Density Test
Procedure for measuring fresh concrete density using a calibrated container. Used for yield calculation and air content cross-check.
Granulated Slag for Manufacture of Portland Slag Cement
Specification for granulated blast furnace slag — chemical, physical, and grading requirements for use in PSC and as a SCM.
Ordinary Portland Cement, 53 Grade - Specification
Specification for high-strength 53-grade OPC. Used for M45+ concrete, prestressed work, fast-track construction, and high-rise structures.
Sulphate Resisting Portland Cement
Specification for SRC with low C3A content (<5%) for use in sulphate-rich environments — coastal soils, sewage works, industrial floors.
Non-Destructive Testing - Ultrasonic Pulse Velocity
Procedure for UPV testing of concrete — equipment, calibration, measurement modes, and quality classification based on velocity.
Non-Destructive Testing - Rebound Hammer
Procedure for rebound hammer (Schmidt hammer) testing — calibration, surface preparation, reading, and strength estimation.
Falsework for Concrete Structures - Guidelines
Guidelines for design, erection, and removal of formwork and falsework. Covers loads, materials, safety, and stripping times.
Portland Pozzolana Cement - Fly Ash Based
Specification for PPC where fly ash is the pozzolanic material (15-35% replacement). Lower heat, better durability, popular for marine and large pours.
Determination of Water Soluble & Acid Soluble Chlorides in Mortar and Concrete
Test methods for chloride content in fresh and hardened concrete — water-soluble (free) and acid-soluble (total) chloride.
Hardened Mortar and Concrete - Test Methods Part 2
Test procedures for hardened concrete durability — sulphate, alkali, and other ionic content determinations.
Methods of Test for Aggregates for Concrete
Eight-part standard covering all test procedures for aggregates: particle size, specific gravity, mechanical properties, soundness, alkali reactivity, and more.
Ordinary Portland Cement - Specification
Consolidated specification for OPC 33, 43, and 53 grades. Replaces IS 8112 and IS 12269 in updated format. Defines chemical composition, physical requirements, and testing.
Pulverized Fuel Ash - Use as Pozzolana in Cement and Concrete
Specification for fly ash used as a pozzolana — fineness, lime reactivity, soundness, and chemical composition limits.
Coarse and Fine Aggregates for Concrete - Specification
Specification for natural and manufactured aggregates used in concrete. 2016 revision permits manufactured sand (M-sand), recycled aggregates, and updates grading limits.
Portland Slag Cement - Specification
Specification for PSC containing 25-70% granulated blast furnace slag. Excellent sulphate and chloride resistance, low heat — ideal for marine and aggressive environments.
Plain & Reinforced Concrete - Code of Practice
The foundational Indian Standard for design and construction of plain and reinforced concrete structures. Covers materials, workmanship, inspection, durability, and structural design. Every concrete project in India references IS 456.
Ready-Mixed Concrete - Code of Practice
Code of practice for ordering, manufacture, transport, and acceptance of ready-mixed concrete. The reference standard for RMC operations in India.
Hardened Concrete - Methods of Test
Standard test methods for hardened concrete — cube and cylinder compressive strength, flexural strength, splitting tensile strength.
High Alumina Cement for Structural Use
Specification for calcium aluminate cement. Very high early strength and chemical resistance, but prone to conversion-related strength loss in warm humid conditions.
Sulphate Resisting Portland Cement - Tests
Test methods for evaluating sulphate resistance of cement — accelerated mortar bar expansion test.
Hot Weather Concreting - Recommended Practice
Practical recommendations for concreting in hot weather — temperature control, scheduling, ice use, curing protection. Critical for Bangalore April-October.
Cold Weather Concreting - Recommended Practice
Recommendations for concreting below 5°C — protection from freezing, accelerated curing, insulated formwork. Limited application in Bangalore.
Rapid Hardening Portland Cement
Specification for RHC, designed for high early strength. Used for road repairs, precast, and emergency works where 1-day strength matters.
Ordinary Portland Cement, 43 Grade - Specification
Specification for 43-grade OPC, the workhorse cement for general RCC construction. Defines chemical, physical, and testing requirements.
Code of Practice for Design Loads (Other than Earthquake)
Five-part code defining dead, live, wind, snow, and special loads on buildings and structures. Foundational for structural design.
Concrete Admixtures - Specification
Specification for chemical admixtures: water reducers, retarders, accelerators, superplasticizers. Defines performance requirements and tests.
Artificial Sand for Concrete - Specification
Specification for crushed-rock fine aggregate (manufactured sand). Part 1 covers source rock; Part 2 covers the M-sand product itself.