Concrete Technology

CE25C06:

Concrete Technology

Course objective:

To impart fundamental knowledge of concrete materials, mix proportioning, and testing as per IS codes, and to develop the ability to design, evaluate, and apply conventional and special concretes for safe, durable, and sustainable construction practices.

Concrete Materials: Cement types, composition, properties, tests as per IS codes; aggregates (fine and coarse), properties, grading, and tests; quality of water for concrete.

Practical:

1. Tests on Cement (fineness, consistency, setting time, specific gravity);

2. Tests on aggregate (grading, specific gravity, bulk density, impact, crushing, flakiness, elongation).

Admixtures and Fibres: Chemical admixtures (accelerators, retarders, plasticizers, superplasticizers, water proofers); mineral admixtures (fly ash, silica fume, GGBS, metakaolin); fibres and their effects on concrete properties.

Activity: Flipped classroom on mineral admixtures

Concrete Mix Design: Principles of mix proportioning, nominal and design mix (with and without admixtures), BIS method, material properties for mix design, quality control and assurance.

Activity: Concrete mix proportioning and fresh concrete testing (IS 516).

Fresh and Hardened Concrete: Workability tests (slump, compaction factor), segregation, bleeding, NDT tests (rebound hammer, UPV), compressive and flexural strength, modulus of elasticity, durability studies.

Practical:

3. Determination of slump of concrete

4. Determination of compressive strength of concrete

Special Concretes: High strength concrete, HPC, SCC, fiber reinforced concrete, ferrocement, ready mix concrete, shotcrete, polymer concrete, geopolymer concrete, sustainable concrete, 3D printing.

Activity: Poster presentation on special concretes.

Tasks:

1. Evaluate the properties of cement, aggregates, and water through laboratory testing and compare the results with IS code requirements.

2. Design and prepare a concrete mix for a specified grade using BIS guidelines and assess its fresh concrete properties.

3. Cast concrete specimens, determine compressive strength, and interpret the quality and durability characteristics of concrete.

4. Study a special concrete technology and present its materials, properties, applications, and sustainability benefits in construction.

Weightage: Continuous Assessment: 50%, End Semester Examinations: 50%

Methodology for Continuous Assessment: Quiz(5%),Project(15%), Assignment (25%), Practical (25%), Internal Examinations (30%)

References

1. Gupta.B.L., Amit Gupta, Concrete Technology, Jain Book Agency, 2010.

2. Shetty, M. S, Concrete Technology, Chand.S and Company Ltd, New Delhi, 2026

3. Neville, A.M; Properties of Concrete, Pitman Publishing Limited, London,2011

4. Gambhir.M.L., Concrete Technology,FifthEdition,McGrawHill Education,2017.

5. Job Thomas., Concrete Technology, Cencage learning India Private Ltd, New Delhi, 2018.

6. IS 456:2000 Plain and Reinforced Concrete – Code of Practice.

7. IS 10262:2019 Concrete Mix Proportioning – Guidelines.

8. IS 2386 (Part 4):1963 Methods of Test for Aggregates for Concrete – Mechanical Properties.

9. IS 516 (Part 1/Sec 1):2021 Methods of Tests for Strength of Concrete.

10. SP 23:1982 Handbook on Concrete Mixes.