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Civil Engineering
Concrete Technology- BE03006021


Syllabus GTU PYQ Papers  IMP Question Bank/Paper Solution  Study Material: Assignment/Video Lectures


Syllabus Detail

*AY-Academic Year*

New Syllabus (AY-2024-25)

Old Syllabus (AY-2018-19)

What’s Changed?

GTU Winter Exam Previous Year Question Papers

Winter-2025

Winter-2022 TO 2025 (3150610)

GTU Summer Exam Previous Year Question Papers

Summer-2022 TO 2026 (3150610)

Summer-2026 

Important Question Bank 

 Everything you need to get started with exam preparation.


Compiled GTU Question Papers: S22 to W25 (Question Bank)

Compiled GTU Question Papers: S22 to W25 (Answer Bank)

GTU Winter Exam Solved Papers


Winter-2025

Winter-2024

GTU Summer Exam Solved Papers

Summer-2025

Summer-2024

Study Material: Assignment


Assignments ( Coming Soon )

Study Material: Video Lessons & Tutorials


The video library is currently being finalized and will go live shortly.

Subtopic Key Concepts Video Focus Areas
1.1 History of Modern Cement & Concrete Early history: Egyptians, Romans (Pozzolana), John Smeaton, Joseph Aspdin (Portland cement). Composition of concrete. Advantages of concrete over other materials.
1.2 Advances, Future Trends & Sustainability Advances in concrete: High-performance concrete, self-compacting concrete, 3D printing. Sustainability: Carbon footprint of cement, use of industrial by-products (fly ash, GGBS), green concrete.
Subtopic Key Concepts Video Focus Areas
2.1 Cement: Manufacturing & Chemical Composition Manufacturing of Portland cement: Wet process, Dry process (preferred). Chemical composition: Tricalcium silicate (C₃S), Dicalcium silicate (C₂S), Tricalcium aluminate (C₃A), Tetracalcium aluminoferrite (C₄AF). Bogue's compounds.
2.2 Cement: Hydration & Structure Hydration of cement: Formation of C-S-H gel, Portlandite (Ca(OH)₂). Heat of hydration. Structure of hydrated cement paste.
2.3 Types of Cement & Tests on Cement Types: Ordinary Portland Cement (OPC), Portland Pozzolana Cement (PPC), Rapid Hardening Cement, Sulphate Resistant Cement. Tests: Fineness (Blaine's air permeability), Standard consistency, Setting time (Initial & Final), Soundness (Le-Chatelier), Compressive strength.
2.4 Aggregates: Classification & Properties Classification by size: Coarse aggregate, Fine aggregate. Classification by source: Natural, Artificial. IS specifications (IS 383). Physical properties: Specific gravity, Bulk density, Water absorption. Mechanical properties: Crushing value, Impact value, Abrasion value.
2.5 Aggregates: Shape, Grading & Testing Effect of shape (angular, rounded, flaky) and grading on concrete. Sampling and testing of aggregates (sieve analysis, flakiness index, elongation index).
2.6 Water & Admixtures Water quality requirements for mixing and curing (IS 456). Limiting values of impurities (chlorides, sulphates). Additives vs. Admixtures. Classification of admixtures: Chemical and Mineral.
2.7 Chemical Admixtures Accelerators (CaCl₂), Retarders (sugar), Water-reducing admixtures (lignosulphonates), Plasticizers, Superplasticizers (Sulphonated naphthalene formaldehyde, Polycarboxylate ethers). Dosage and application.
2.8 Mineral Admixtures Fly ash (Class F, Class C), Silica fume, Ground Granulated Blast Furnace Slag (GGBS), Rice husk ash. Pozzolanic materials. Damp proofing and water proofing admixtures.
Subtopic Key Concepts Video Focus Areas
3.1 Properties & Workability of Fresh Concrete Definition: Fresh concrete is plastic and workable. Workability: Definition. Measurement of workability: Slump test (IS 7320, ASTM C143), Compaction factor test, Vee-Bee consistometer.
3.2 Segregation, Bleeding & Slump Loss Segregation: Separation of coarse aggregate from mortar. Bleeding: Water rising to the surface. Slump loss: Loss of workability over time. Re-tempering: Adding water to regain workability (not recommended).
3.3 Site Preparations & Concreting Operations Site preparation: Formwork, reinforcement placement, cleaning. Mixing: Hand mixing, Machine mixing. Conveying, Placing, Compaction (vibration), Finishing of concrete.
3.4 Curing of Concrete Definition: Maintaining adequate moisture and temperature. Importance of curing for strength and durability. Various methods: Ponding, Spraying, Wet covering, Membrane curing, Steam curing.
Subtopic Key Concepts Video Focus Areas
4.1 Strengths of Hardened Concrete Compressive strength (cube, cylinder tests). Tensile strength (split tensile test, flexural strength test). Bond strength. Standard test methods (IS 516, ASTM).
4.2 Stress-Strain Behaviour & Modulus of Elasticity Stress-strain curve for concrete. Modulus of elasticity (E): Static and Dynamic. Factors affecting E.
4.3 Failure Mechanisms & Dimensional Stability Failure mechanism under compression: Micro-cracking, formation of cracks parallel to the direction of loading. Failure under tension: Brittle fracture. Creep: Time-dependent deformation under sustained load. Shrinkage: Drying shrinkage, Autogenous shrinkage.
Subtopic Key Concepts Video Focus Areas
5.1 Causes of Deterioration & Durability Problems Causes: Physical (freeze-thaw, abrasion, fire), Chemical (sulphate attack, acid attack, alkali-aggregate reaction, carbonation, corrosion of reinforcement). Factors affecting durability.
5.2 Carbonation & Corrosion Induced Cracking Carbonation: CO₂ penetrating concrete and reacting with Ca(OH)₂, lowering pH. Corrosion of reinforcement: Depassivation of steel, rust formation, volume expansion, cracking and spalling.
5.3 Alkali-Aggregate Reaction (AAR) & Freeze-Thaw Alkali-Silica Reaction (ASR): Reaction between alkalis in cement and reactive silica in aggregates, causing expansion and cracking. Freeze-thaw damage: Water in the pores expands upon freezing, causing cracking.
5.4 Sulphate Attack & Marine Environment Sulphate attack: Reaction of sulphates with C₃A forming ettringite, causing expansion and cracking. Durability under sea-water: Marine environment (chlorides, sulphates). Problems in mass concrete: Thermal cracking.
Subtopic Key Concepts Video Focus Areas
6.1 Concept, Objectives & Principles of Mix Design Concept of mix design: Selection of suitable ingredients and their proportions to produce concrete of desired strength and durability. Objectives: To achieve the required workability, strength, and durability economically. Principles: Water-cement ratio law.
6.2 Factors Influencing Mix Design & IS Methods Factors: Water-cement ratio, workability, aggregate grading, shape and size, cement content. IS methods of mix design: IS 10262 (Guidelines for concrete mix proportioning).
6.3 Acceptability Criteria & Variability Acceptability criteria for concrete (IS 456). Variability of results: Standard deviation. Quality control.
6.4 Provisions of IS Code for Sound Concrete IS 456 provisions: Minimum cement content, maximum w/c ratio, durability requirements, cover to reinforcement, etc.
Subtopic Key Concepts Video Focus Areas
7.1 High Strength & High Performance Concrete High Strength Concrete (HSC): > M60. High Performance Concrete (HPC): High durability, high strength, high workability.
7.2 Special Concretes Fiber Reinforced Concrete (FRC): Steel fibers, glass fibers, polypropylene fibers. Bacterial concrete (self-healing). Polymer modified concrete. Geopolymer concrete (alkali-activated materials). Self-compacting concrete (SCC). Lightweight concrete, High density concrete, High volume fly ash concrete.
7.3 Special Concrete Methods Pumped concrete, Ready Mix Concrete (RMC), Under-water concreting (tremie method), Hot weather concreting, Cold weather concreting, Pre-cast concrete, Pre-placed concrete.
Subtopic Key Concepts Video Focus Areas
8.1 Introduction to Testing Methodology Destructive testing (core samples). Semi-destructive testing. Non-Destructive Testing (NDT): Testing without damaging the structure. Problems faced during NDT evaluation.
8.2 Rebound Hammer Test Rebound hammer (Schmidt hammer) test: Measures surface hardness. Correlation with compressive strength.
8.3 Ultrasonic Pulse Velocity Test Ultrasonic pulse velocity (UPV) test: Pulse velocity through concrete. Used to assess homogeneity, detect cracks, and estimate strength.
8.4 Penetration, Carbonation & Pull-out Tests Penetration tests (Windsor probe). Carbonation test: Phenolphthalein indicator. Pull-out tests: To determine in-situ strength.

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