Book Details

Concrete Technology

Concrete Technology

Published by uLektz

Course Code:RT22015

Author:uLektz

University: JNTU Kakinada

Regulation:2013

Categories:Civil

Format : ico_bookePUB3 (DRM Protected)

Type :eBook

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Description :Concrete Technology of RT22015 covers the latest syllabus prescribed by JNTU Kakinada for regulation 2013. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

Topics
UNIT - I INGREDIENTS OF CONCRETE

1.1 CEMENTS & ADMIXTURES: Portland cement – Chemical composition – Hydration, Setting of cement, Fineness of cement, Structure of hydrate cement – Test for physical properties – Different grades of cements –

1.2 Admixtures – Mineral and chemical admixtures – accelerators, retarders, air entrainers, plasticizers, super plasticizers, fly ash and silica fume.

1.3 AGGREGATES: Classification of aggregate – Particle shape & texture – Bond, strength & other mechanical properties of aggregates – Specific gravity, Bulk density, porosity, adsorption & moisture content of aggregate – Bulking of sand –Deleterious substance in aggregate – Soundness of aggregate – Alkali aggregate reaction – Thermal properties – Sieve analysis – Fineness modulus – Grading curves – Grading of fine & coarse Aggregates – Gap graded and well graded aggregate as per relevant IS code

UNIT – II FRESH CONCRETE

2.1 FRESH CONCRETE: Steps in Manufacture of Concrete–proportion, mixing, placing, compaction, finishing, curing – including various types in each stage

2.2 Properties of fresh concrete-Workability – Factors affecting workability – Measurement of workability by different tests, Setting times of concrete, Effect of time and temperature on workability – Segregation & bleeding

2.3 Mixing and vibration of concrete, Ready mixed concrete, Shotcrete

UNIT – III HARDENED CONCRETE

3.1 HARDENED CONCRETE: Water / Cement ratio – Abram’s Law – Gelspaoe ratio

3.2 Nature of strength of concrete –Maturity concept – Strength in tension & compression – Factors affecting strength – Relation between compression & tensile strength – Curing

3.3 Testing of Hardened Concrete:Compression tests – Tension tests – Factors affecting strength – Flexure tests –Splitting tests – Non-destructive testing methods – codal provisions for NDT

UNIT – IV ELASTICITY, CREEP & SHRINKAGE

4.1 ELASTICITY, CREEP & SHRINKAGE– Modulus of elasticity – Dynamic modulus of elasticity – Poisson’s ratio

4.2 Creep of concrete – Factors influencing creep – Relation between creep & time – Nature of creep – Effects of creep

4.3 Shrinkage –types of shrinkage.

UNIT – V MIX DESIGN

5.1 MIX DESIGN: Factors in the choice of mix proportions – Durability of concrete – Quality Control of concrete – Statistical methods – Acceptance criteria

5.2 Concepts Proportioning of concrete mixes by various methods – BIS method of mix design.

UNIT – VI SPECIAL CONCRETES

6.1 SPECIAL CONCRETES: Ready mixed concrete, Shotcrete -Light weight aggregate concrete – Cellular concrete – No-fines concrete, High density concrete

6.2 Fibre reinforced concrete – Different types of fibres – Factors affecting properties of F.R.C

6.3 Polymer concrete – Types of Polymer concrete – Properties of polymer concrete

6.4 High performance concrete – Self consolidating concrete, SIFCON, self healing concrete

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