CN7001 Advanced Concrete Technology Lecture Notes (All Units) - Ashok Edition

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AFFILIATED INSTITUTIONS

ANNA UNIVERSITY :: CHENNAI 600 025

REGULATIONS - 2013

M.E. STRUCTURAL ENGINEERING

CN7001 Advanced Concrete Technology

Lecture Notes (All Units) - Ashok Edition

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Content: 
UNIT-1

Introduction
Cement Concrete:
Advantages of concrete:
Dis advantages:
AGGREGATES:
Requirements  of  good aggregates
Classification of aggregate:
    1. Based on nature of formation:
        a. Natural aggregates:
       b. Artificial aggregates(processed aggregates):
 Classification based on size:
According to size, aggregates are classified as :
Coarse aggregate:
1. graded aggregates:
   Single sizes aggregates:
2.Fine aggregates:
   Classification based on shape:
1. Rounded aggregates:
2. Irregular aggregates:
3. Angular aggregates:
Flaky aggregates 
Elongated aggregates:
Sources of aggregates:
1. River sand:
2. Pit sand: 
3. Sea sand:
4. Manufacture sand (M-sand):
Gradation
Need of grading aggregates –Grading curve
Measurement
Effects of properties of aggregates:
Cleanliness and deleterious materials.

TESTS ON AGGREGATE:
STRENGTH OF AGGREAGTE:
1. AGGREGATE CRUSHING VALUE (IS: 2386 (Part IV) – 1963)A:
Procedure:
2. AGGREGATE IMPACT VALUE [AIV Test] (IS: 2386 (Part IV) – 1963).
Preparation of Sample
3. Los Angels Abrasion Test:
    Stiffness:
    Bond strength:
    Shape and texture:
     Porosity
            Moisture content
     Soundness:
     Fineness modulus(FM):
     SPECIFIC GRAVITY:
      BULK DENSITY:
SIEVE ANALYSIS
Procedure to determine particle size distribution of Aggregates.
Fibers:
Effect of fibers in concrete
CEMENT:
Early uses:
Uses of cement:
Chemical composition of raw materials of Portland cement and their functions
Functions:
Manufacture of Ordinary Portland Cement(OPC):
Mixing of raw materials:  
Dry Process:
wet process:
Burning:
Grinding:
Grade of cement:
Bouge’s Compounds(Chemical composition of cement):
Hydration of Cement:
Water requirement for Hydration:
Structure of hydrated Cement:
Concrete Microstructure
Origin of Air in Concrete
Products of Hydration:
Calcium silicate hydrate:
Calcium hydroxide –
AFm and AFt phases:
Ettringite:
Monosulfate:  
Monocarbonate:
Transition Zone:
TYEPS OF CEMENT AND USES
1. Ordinary Portland Cement(OPC)
2. Rapid Hardening Cement(RHC)[IS 8041-1990]
3. Quick Setting Cement:
4. Portland Pozzolana Cement(PPC)[IS 1489-1991];
Advantages;
Application;
Air-Entraining Cement:
Colored Cement
White Cements:
Hydrophobic Cement(IS 8043-1991)
Masonry Cement(IS 3466-1988)
Oil-well Cement;(IS 8229-1986)
 Rediset Cement:
High Alumina Cement(IS 6452:1952):
Expansive cement:
Expansive cement:
 Super Sulphated Cement(IS 6909-1990):
Sulphate Resisting Cement(IS 12330-1988):
ASTM CLASSIFICATION OF CEMENT:
Effects of cements on concrete properties.
Hydration products:
TESTS ON CEMENT
a. INITIAL SETTING TIME
b. FINAL SETTING TIME
CONSISTENCY
SOUNDNESS
FINENESS
Heat of Hydration
QUALITIES OF WATER:
Types of Chemical  Admixtures
Factors affecting the Workability
Retarding Plasticizers
Mineral admixtures

UNIT-2 and 3:
Concrete Mix Design
Introduction
Requirements of concrete mix design
Factors affecting the choice of mix proportions
Grading and type of aggregate
Types of mixes:
Mix Proportion designation 
Mix Design Methods:
II. ACI method:
Rheology of concrete :
Properties of Fresh Concrete
Factors affecting concrete workability:
Tests on Fresh Concrete (Workability Tests):
TYPES OF SLUMP:
COMPACTING FACTOR TEST
Non-Destructive Tests(NDT)
Pulse velocity=(Path length/Travel time)
Creep in concrete
Types of Shrinkage in Concrete
Factors Affecting Shrinkage
Types of Durability of Concrete
Resistance to Alkali-Silica Reaction (ASR):
Chlorides
Corrosion:
QUALITY CONTROL OF CONCRETE  :
Stages of Quality Control

UNIT-3 and 5
Concrete manufacture:
Batching:
Mixing of concrete:
Classifications of Mixers:
Mixing Time
Overmixing  Concrete :
Transporting Concrete
Categories of Transportation
Ready Mix Concrete:
Pumped Concrete:
Techniques of concrete placement:
FERRO-CEMENT  
ROLLER COMPACTED CONCRETE   
Curing Methods - Methods of Curing of Concrete
Methods of Curing Concrete
Application of heat
Miscellaneous Methods of Curing
Curing Period:
Special Concreting Methods:
Problems Encountered in Cold Weather Concreting
Precautions  to be taken in Winter Concreting
Precautions  to be taken in Winter Concreting
UNDERWATER CONCRETING  
UNDERWATER CONCRETING  

UNIT-4
Special Concretes
Sprayed Concrete
LIGHTWEIGHT CONCRETE 
Types
HEAVY CONCRETE
High-performance concrete
Glass concrete
Polymer Concrete(PC)
Geopolymer or green concrete
Fiber-reinforced concrete (FRC):
Effects of fiber in concrete:
COLCRETE
Coarse Aggregate
VACUUM CONCRETE  
MASS CONCRETE   
High-Volume Fly Ash Concrete
The characteristics defining a HVFA concrete mixture :
Epoxy Resins:
Properties and Applications of epoxy resins:
Screeds for rehabilitation:
Emerging trends in replacement of fine aggregates:

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