95
4.1

CONCRETE TECHNOLOGY
L T P
3 - 3

RATIONALE
Diploma holders in Civil Engineering are supposed to supervise concreting operations
involving proportioning, mixing, transporting, placing, compacting, finishing and curing
of concrete. To perform above functions, it is essential to impart knowledge and skills
regarding ingredients of concrete and their properties; properties of concrete in plastic
and hardened stage, water cement ratio and workability; proportioning for ordinary
concrete; concreting operations and joints in concrete.
DETAILED CONTENTS
THEORY
1.

Introduction: Definition of concrete, brief introduction to properties of concrete,
advantages of concrete, uses of concrete in comparison to other building materials
(2 hrs)

2.

Ingredients of Concrete:
2.1

Cement: physical properties of cement; different types of cement:

2.2

Aggregates:

(7 hrs)

2.2.1 Classification of aggregates according to size and shape
2.2.2

Characteristics of aggregates: Particle size and shape, surface
texture, specific gravity of aggregate; bulk density, water
absorption, surface moisture, bulking of sand, deleterious materials
soundness
2.2.3 Grading of aggregates: coarse aggregate, fine aggregate; All-inaggregate; fineness modulus; interpretation of grading charts

2.3
3.

Water: Quality requirements as per IS:456-2000

Properties of Concrete:

(7 hrs)

3.1

Properties in plastic state, Workability, Segregation, Bleeding and
Harshness

3.2

Properties in hardened state: Strength, Durability, Impermeability,
Dimensional changes;

96
4.

5.

6.

7.

8.

Water Cement Ratio:

(2 hrs)

4.1

Principle of water-cement ration law/Duff Abram’s Water-cement ratio
law: Limitations of water-cement law

4.2

Definition of strength of concrete, relation between water cement ratio and
strength of concrete

Workability:

(3 hrs)

5.1

Definition, phenomenon of workability, concept of internal friction,
segregation and harshness; factors affecting workability

5.2

Measurement of workability: slump test, compacting factor and vee bee
consistometer; recommended slumps for placement in various conditions
as per IS:456-2000 and SPECIFICATIONS-23-1982

Proportioning for Normal Concrete:

(4 hrs)

6.1

Objectives of mix design, introduction to various grades as per IS:4562000; proportioning for normal mix as prescribed by IS”456-2000

6.2

Adjustment on site for: Bulking of fine aggregate, water absorption of
aggregate, workability

6.3

Difference between normal and controlled concrete

Admixtures (Introduction as per IS:456-2000)

(3 hrs)

7.1

Chemical admixtures (Plasticizers, Accelerators and Retarders, Waterreducing admixtures, Air-entraining admixtures)

7.2

Mineral admixtures

7.3

Fly ash

7.4

Silica fumes

7.5

Rice husk ash

7.6

Meta Kaolin

Special Concretes
8.1

Concreting under special conditions
8.1.1 Cold weather concreting

(6 hrs)

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8.1.2 Under water concreting
8.1.3 Hot weather concreting

9.

8.2

Fibre reinforced concrete

8.3

Fly ash concrete

8.4

Silica fume concrete

8.5

Polymer concrete

Conducting Operations:
**9.1

(12 hrs)

Storing of Cement:
9.1.1 Storing of cement in a warehouse
9.1.2 Storing of cement at site
9.1.3 Effect of storage on strength of cement
9.1.4 Determination of warehouse capacity for storage of Cement

9.2

Storing of Aggregate: Storing of aggregate on site

9.3

Batching:
9.3.1 Batching of Cement
9.3.2 Batching of aggregate by:
9.3.2.1 Volume, using gauge box (farma) selection of proper gauge
box
9.3.2.2 Weight spring balances and by batching machines
9.3.3 Measurement of water

** 9.4

Mixing:
9.4.1 Hand mixing
9.4.2 Machine mixing - types of mixers, capacities of mixers, choosing
appropriate size of mixers, operation of mixers
9.4.3 Maintenance and care of machines

**9.5

9.6

Transportation of concrete: Transportation of concrete using pans, wheel
barrows, transit mixers, chutes, belt conveyors, pumps, tower crane and
hoists etc.
Placement of concrete:
Checking of form work, shuttering and precautions to be taken during
placement

98

** 9.7

Compaction:
9.7.1

Hand compaction

9.7.2 Machine compaction - types of vibrators, internal screed vibrators
and form vibrators
9.7.3

Selection of suitable vibrators for different situations

9.8

Finishing concrete slabs - screeding, floating and trowelling

9.9

Curing:
9.9.1

Objective of curing, methods of curing like ponding, membrane
curing, steam curing etc.

9.9.2

Duration for curing and removal of form work

9.10

Jointing: Location of construction joints, treatment of construction joints,
expansion joints in buildings - their importance and location

9.11

Defects in concrete: Identification of and methods of repair

NOTE: **

A field visit may be planned to explain and show the relevant things

PRACTICAL EXERCISES:
i)

To determine the physical properties of Cement as per BIS Codes

ii)

To determine flakiness and elongation index of coarse aggregates

iii)

Method to determine silt in fine aggregate

iv)

Determination of specific gravity and water absorption of aggregates

v)

Determination of bulk density and voids of aggregates

vi)

Determination of particle size distribution of fine, coarse and all in aggregate by
sieve analysis (grading of aggregate)

viii)

To determine necessary adjustment for bulking of fine aggregate

ix)

To determine workability by slump test:

99
a)
b)

To verify the effect of water, fine aggregate/coarse aggregate ratio and
aggregate/Cement ratio on slump
To test compressive strength of concrete cubes with varying water
cement ratio

x)

Compaction factor test for workability

xi)

Non destructive test on concrete by:
a)
b)
c)

xii)

Rebound Hammer Test
Ultrasonic Pulse Velocity Test
Profometer/covesometer

Tests for compressive strength of concrete cubes for M-15 or M-20

INSTRUCTIONAL STRATEGY
This subject is of practical nature. While imparting instructions, teachers are expected to
organize demonstrations and field visits to show various stages of concreting operations.
While working in the laboratory, efforts should be made to provide extensive practical
training to students so as to make them confident in the preparation and testing of
concrete. Teachers should also organize viva examination so as to develop understanding
about concepts and principles involved.
RECOMMENDED BOOKS
i)

Sood, Hemant, Mittal LN and Kulkarni PD; "Laboratory Manual on Concrete
Technology", CBS Publishers, New Delhi, 2002

ii)

Kulkarni, PD; Ghosh, RK and Phull, YR; "Text Book of Concrete Technology";
New Delhi Oxford and IBH Publishing Co.

iii)

Krishnamurthy, KT; Rao, A Kasundra and Khandekar, AA; "Concrete
Technology"; Delhi, Dhanpat Rai and Sons.

iv)

Gupta BL; "Text Book of Concrete Technology"; Standard Publishers
Distributors

v)

Varshney, RS;"Concrete Technology";New Delhi, Oxford and IBH Publishing

vi)

Neville, AM; "Properties of Concrete" London, Pitman (ELBS Edition available)

vii)

Orchard; "Concrete Technology"; Vol I, II, and III

viii)

Handoo, BL; and Puri, LD;"Concrete Technology"; New Delhi, Satya Prakashan

100
ix)

Vazirani, VN; and Chandola, SP; "Concrete Technology"; Delhi, Khanna
Publishers

x)

Gambhir, ML; "Concrete Technology"; New Delhi, MacMillan India Ltd.

xi)

Siddique, R., “Special Structural Concretes”, New Delhi, Galgotia Publishers Pvt.
Ltd. Delhi

101
4.2

WATER SUPPLY AND WASTE WATER ENGINEERING
L T P
4 - 2

RATIONALE
One of the basic necessities of life is potable water, which is not easily available to most
of the people. Providing potable water, collection and disposal of waste water are
important activities in the field of civil engineering. This subject imparts basic knowledge
and skills in the field of water supply and waste water disposal engineering. Classroom
instructions should be supplemented by field visits to show functional details of water
supply and waste water disposal systems. It is also recommended to invite professionals
from field to deliver extension lectures on specialized operations
DETAILED CONTENTS
THEORY
PART-A: WATER SUPPLY
1.

Introduction

(1 hr)

Water as a natural resource importance of hydrological cycle, significance of
water quality and various components of public water supply scheme
2.

3.

Quantity of Water

(5 hrs)

2.1

Water demand for domestic, commercial, industrial and public utility
purposes as per BIS standards

2.2

Per capita demand

2.3

Variations in rate of demand – hourly, daily, weekly and seasonal

2.4

Methods of population forecasting and related numericals

2.5

Design period and estimation of water requirement for public water supply
scheme

Sources of Water Supply

(3 hrs)

3.1

Various sources of water (surface and underground sources)

3.2

Quantity and quality of water from various sources, selection of a suitable
source

102
3.3
4.

5.

6.

Development of springs, infiltration galleries and various types of wells,
rain water harvesting and recharge of ground water

Intakes and Conveyance of Water

(3 hrs)

4.1

Various types of intakes and their locations

4.2

Materials for conveyance of water: cast iron, GI, Steel, PVC, asbestos,
cement, concrete timber etc. Suitability of various materials as per BIS
specifications

4.3

Joints in various types of pipes

4.4

Numerical on conveyance of water

Quality of Water

(3 hrs)

5.1

Impurities in water

5.2

BIS standards of potable water

5.3

Necessity for the analysis of water

5.4

Sampling techniques, physical, chemical and bacteriological tests and their
significance

Treatment of Water

(5 hrs)

6.1

Objectives of water treatment and various types of treatment processes

6.2

Purpose and types of screening, aeration, straining and sedimentation

6.3

Coagulation and flocculation: common coagulants, optimum dose and
feeding devices

6.4

Filtration: significance and theory of filtration; types, working, suitability
and operational problems of filters

6.5

Disinfection: necessity, types of disinfectants, and requirements of a good
disinfectant, chlorination: practices of chlorination, break point
chlorination, residual chlorine and chlorine demand, application of
chlorine

6.6

Flow diagram of various treatment processes

103
7.

Storage and Distribution of Water
7.1
7.2

8.

9.

(5 hrs)

Clear water reservoir site selection and determination of its capacity by
mass-curve method
Adequate pressure in distribution pipes, layouts of distribution systems
along with their merits and demerits

7.3

Systems of water supply: continuous and intermittent, their advantages
and disadvantages

7.4

Appurtenances sluice, reflux and air relief valves, bib cock, stopcocks, fire
hydrants, water meters and their working

7.5

Pumps and pumping of water, estimation of HP of pumps for water supply

7.6

Detection and prevention of leakage of water, maintenance of distribution
network

Laying of Pipes:
8.1

Setting out alignment of pipes

8.2

Excavation for laying of pipes and precautions to be observed

8.3

Handling, lowering, laying and jointing of pipes

8.4

Testing of pipe lines

8.5

Back filling and restoration to original surface

Plumbing and Water Supply Installations
9.1

General principles as per BIS standards

9.2

Service connections

9.3

Water supply fixtures and installations

9.4

Hot and cold water supply

9.5

Estimation of pipe sizes

(3 hrs)

(3 hrs)

104
PART-B: WASTE WATER ENGINEERING
10.

11.

12.

13.

Introduction

(2 hrs)

10.1

Purpose of sanitation, necessity of systematic collection and disposal of
waste water

10.2

Definition of terms in waste water engineering

10.3

Systems of sanitation: conservancy and water carriage systems, their
advantages and disadvantages

10.4

Systems of sewerage: advantages, disadvantages and their suitability

Design of Sewers

(5 hrs)

11.1

Quantity of sanitary and storm sewage, variation in flow and their
importance, dry weather flow

11.2

Form and materials of sewers and BIS specifications

11.3

Conditions of flow, self-cleansing and limiting velocities, hydraulic
formulae for flow of sewage in sewers

11.4

Numerical on design of sewers by use of nomograms

11.5

Sewer appurtenances: location, function and construction features,
manholes, drop manholes, catch basin inverted siphon, flushing tanks,
greese and oil trap, storm water regulators and ventilating shafts

Construction and Laying of Sewers

(3 hrs)

12.1

Setting out alignment of sewers

12.2

Excavation, setting the gradient with boning rod, preparation of bed,
handling and jointing, testing, back filling and restoration to original
surface

Characteristics and Testing of Waste Water

(3 hrs)

13.1

Composition and decomposition of waste water

13.2

Sampling; physical, chemical and bacteriological analysis of waste water

105
14.

15.

16.

17.

18.

Natural Methods of waste water Disposal

(3 hrs)

14.1

Decomposition of waste water

14.2

Waste water disposal methods: disposal by dilution and self-purification
of stream, disposal by land treatment

14.3

Nuisance due to disposal

Waste Water Treatment

(4 hrs)

15.1

Meaning and principles of primary and secondary treatment

15.2

Constructional details of screens, grit chambers, skimming tanks and
primary clarifiers

15.3

Trickling filters, activated sludge process and their merits and demerits.
Secondary clarifiers and oxidation ditch

Treatment and Disposal of Sludge
16.1

Disposal of wet sludge

16.2

Sludge digestion, sludge drying and its disposal

Building Drainage
17.1

Aims of building drainage and its principles

17.2

General layout of house drainage as per BIS specifications

17.3

Different sanitary fittings

17.4

Traps, seals, causes and prevention of breaking of water seals

17.5

Testing of house drainage

Rural Sanitation

(2 hrs)

(6 hrs)

(4 hrs)

18.1

Drainage, topography, alignments of lanes and by-lanes, storm water,
natural drainage, development of drains, size and gradient of drains

18.2

Disposal of night soil, collection and disposal of garbage and refuse, septic
tanks, cess pools, pit privies, bore hole latrines and soak pits

18.3

Biogas plant: construction details, use and maintenance

106
PRACTICAL EXERCISES
1.

To determining pH value, conductivity and turbidity of water sample along with
their field applications of water sample and their field applications

2.

To determine optimum alum dose for coagulation of raw water

3.

To determine residual chlorine and chloride demand of water

4.

Threading/Joining of GI, CI, and plastic pipes

5.

Installation of the following
a)
Service connection: water supply to the building
b)
Water meter
c)
Valves and fittings

6.

Water supply connection to bathrooms, bath tubs, showers and geysers

7.

To determine total, dissolved and suspended solids in a given waste water sample

8.

To determine chemical oxygen demand (COD)

9.

To determine Biochemical oxygen demand (BOD)

10.

Installation of sanitary fittings: wash basin, water closets (Indian and European),
flushing cisterns and their connections to anti-syphonage pipe

11.

Installation and testing of house drainage

12.

Construction of inspection chamber

13.

Laying and testing of sewers

14.

Assembling parts of a septic tank

15.

Assembling parts of a Biogas plant

INSTRUCTIONAL STRATEGY
As the subject is of practical nature, classroom instructions be supplemented by field
visits. Visits to water and waste water treatment plants will motivate the students for
learning in the classroom. Collection of information, pamphlets and catalogues from the
manufacturers of water supply and sanitary fittings will be very helpful for the students.

107
RECOMMENDED BOOKS
1.

Kshirsagar, SR; “Water Supply Engineering”, Roorkee Publishing House,
Roorkee

2.

Kshirsagar, SR; “ waste water and waste water Treatment”, Roorkee Publishing
House, Roorkee

3.

Garg, SK; “Water Supply Engineering”, Khanna Publisher, Delhi

4.

Garg, SK; “ waste water and Waste Water Disposal”, Khanna Publishers, Delhi

5.

Deswal, SS and Deswal S; “Environmental Engineering”, Dhanpat Rai and Co.
(P) Ltd., New Delhi

6.

Bridie, GS; “Water Supply and Sanitary Engineering”, Dhanpat Rai and Co., (P)
Ltd., New Delhi

7.

Kamala, S; “Environmental Engineering”, Tata McGraw Hill Co., Delhi

8.

Mathur RP, “Water and Waste Water Testing Laboratory Manual”, Nem Chand
and Brothers, Roorkee

9.

Duggal, Ajay K, “Laboratory Manual in PHE for Polytechnic Students”,
Technical Teachers’ Training Institute, Chandigarh

10.

BIS Code related to Water Supply & Waste Water

11.

Water Supply Manual issued by M/O Urban Development

108
4.3

SOIL AND FOUNDATION ENGINEERING
L
3

T P
1 3

RATIONALE
Civil Engineering diploma engineers are required to supervise the construction of roads
and pavements, dams, embankments, and other Civil Engineering structures. As such the
knowledge of basic soil engineering is the pre-requisite for these engineers for effective
discharge of their duties. This necessitates the introduction of Soil Engineering subject in
the curriculum for Diploma Course in Civil Engineering.
The subject covers only such topics as will enable the diploma engineers to identify and
classify the different types of soils, their selection and proper use in the field for various
types of engineering structures..
The emphasis will be more on teaching practical aspect rather than theory.
DETAILED CONTENTS
THEORY
1.

2.

3.

Introduction:

(3 hrs)

1.1

Importance of soil studies in Civil Engineering

1.2

Geological origin of soils with special reference to soil profiles in India:
Residual and transported soil, Alluvial deposits, lake deposits, dunes and
loess, glacial deposits, conditions in which above deposits are formed and
their engineering characteristics.

1.3

Names of organizations dealing with soil engineering work in India, soil
map of India

Physical Properties of Soils:

(4 hrs)

2.1

Constituents of soil and representation by a phase diagram

2.2

Definitions and meaning of void ratio, porosity, degree of saturation,
water content, specific gravity, unit weight, dry unit weight of soil grains

2.3

Simple numerical problems with the help of phase diagrams

Soils Classification and Identification:
3.1

(4 hrs)

Particle size, shape and their effect on engineering properties of soil

109

4.

5.

6.

3.2

Gradation and its influence on engineering properties

3.3

Relative density and its use in describing cohesionless soils

3.4

Behaviour of cohesive soils with change in water content, Atterberg
limits-definitions, use and practical significance

3.5

Field identification tests for soils

3.6

BIS soil classification system as per IS 1498; basis, symbols, major
divisions and sub divisions, groups, plasticity chart; procedure to be
followed in classifying a given soil into a group

3.7

Black cotton soils: Properties and their effect on construction of buildings
and other structures

Flow of Water Through Soils:

(4 hrs)

4.1

Concept of permeability and its importance

4.2

Darcy's law, coefficient of permeability, seepage velocity and factors
affecting permeability

4.3

Comparison of permeability of different soils as per BIS

4.4

Measurement of permeability in the laboratory

Effective Stress: (Concept only)

(4 hrs)

5.1

Stresses in subsoil

5.2

Definition and meaning of total stress, effective stress and neutral stress

5.3

Principle of effective stress

5.4

Importance of effective stress in engineering problems

Deformation of Soils
6.1

(4 hrs)

Meaning, conditions/situations of occurance with emphasis on practical
significance of:
a)
Consolidation and consolidation settlement
b)
Creep
c)
Plastic flow
d)
Heaving
e)
Lateral movement

110

7.

8.

9.

6.2

Definition and practical significance of compression index, coefficient of
consolidation, degree of consolidation.

6.3

Meaning of total settlement, uniform settlement, differential settlement
and rate of settlement and their importance

6.4

Settlement due to construction operations and lowering of water table

6.5

Tolerable settlement for different structures as per BIS

Strength Characteristics of Soils:

(5 hrs)

7.1

Examples of shear failure in soils

7.2

Factors contributing to shear strength of soils, Coulomb's law

7.3

Determination of shearing strength, vane shear test, direct shear test and
unconfined compression test. Brief idea about triaxial shear test.

7.4

Drainage conditions of test and their significance

7.5

Stress and strain curve, peak strength and ultimate strength, their
significance

7.6

Numerical problems

Soil Compaction:

(4 hrs)

8.1

Various terms used to discuss degree of compaction and necessity of
compaction

8.2

Laboratory compaction test (standard and modified as per BIS) definition
and importance of optimum water content, maximum dry density;
moisture dry density relations for typical soils with different compactive
efforts

8.3

Field compaction; methods and equipment, choice of equipment

8.4

Compaction control; Density control, field density test,(sand replacement),
moisture control, Proctor's needle and its use, thickness control, jobs of an
embankment supervisor in relation to compaction

Bearing Capacity
9.1

Concept of bearing capacity

(6 hrs)

111
9.2

10.

9.3

Definition and significance of ultimate bearing capacity, net safe bearing
capacity and allowable bearing pressure
Bearing capacity from building BIS codes (IS 6403)

9.4

Factors affecting bearing capacity

9.5

Concept of vertical stress distribution in soils due to foundation loads,
pressure bulb

9.6

Plate load test (no procedure details) and interpretation of its results,
limitations of plate load test

9.7

Application of SPT and unconfined compression test and direct shear test
in estimation of bearing capacity

9.8

Soil properties governing choice of foundation type

9.9

Improvement of bearing capacity (elementary), sand drain method
compaction, use of geotextiles, grouting.

Soil Exploration:

(4 hrs)

10.1

Purpose and scope of soil exploration, economical aspects

10.2

Undertaking planning of subsurface investigations

10.3

Influence of soil conditions on exploratory programme

10.4

Possibility of misjudgment of subsoil conditions

10.5

Location, depth and spacing of exploration

10.6

Influence of size of project and type of structure on exploratory
programme

10.7

Methods of soil exploration; Reconnaissance, Trial pits, borings, (Auger,
wash, rotary, percussion to be briefly dealt), SPT (Brief description and
information collected)

10.8

Groundwater level measurement

10.9

Sampling; undisturbed, disturbed and representative samples; selection of
type of sample; thin wall and piston samples; area ratio, recovery ratio of
samples and their significance, number and quantity of samples, resetting,
sealing and preservation of samples.

10.10 Presentation of soil investigation results

112

11.

Foundation Engineering:

(8 hrs)

Concept of shallow and deep foundation; types of shallow foundations and their
suitability. Factors affecting the depth of shallow foundations, deep foundations,
type of piles and their suitability; constructional features of pile foundations, pile
classification on the basis of material, method of load transmission, method of
installation..
PRACTICAL EXERCISES
i)

Auger Boring and Standard Penetration Test
a)
b)
c)
d)
e)

ii)

Identifying the equipment and accessories
Conducting boring and SPT at a given location
Collecting soil samples and their identification
Preparation of boring log and SPT graphs
Interpretation of test results

Extraction of Disturbed and Undisturbed Samples
a)
b)
c)
d)

Extracting a block sample
Extracting a tube sample
Extracting a disturbed samples for mechanical analysis, Compaction and
limit test
Field identification of samples

iii)

Determination of water content by oven drying method and rapid moisture meter

iv)

Field Density Measurement (Sand replacement and core cutter method)
a)
b)
c)
d)

v)

Calibration of sand
Conducting field density test at a given location
Determination of water content
Computation and interpretation of results

Liquid Limit and Plastic Limit Determination:
a)
b)
c)
d)
e)

Identifying various grooving tools:
Preparation of sample
Conducting the test
Observing soil behaviour during tests
Computation, plotting and interpretation of results

113
vi)

Specific gravity of soil solids by pycnometer

vii)

Mechanical Analysis
a)
b)
c)
d)
e)

viii)

Laboratory Compaction Tests
a)
b)
c)
d)
e)

ix)

Preparation of sample
Conducting the test
Observing soil behaviour during test
Computation of results and plotting
Determination of Optimum Moisture Content and maximum dry density

Determination of permeability of soil samples by constant head and falling head
methods
a)
b)
c)
d)
e)

x)

Preparation of sample
Conducting sieve analysis
Computation of results
Plotting the grain size distribution curve
Interpretation of the curve

Preparation of sample
Preparing set up
Conduct the test
Determination of permeability
Interpretation of results

Unconfined Compression Test
a)
b)
c)
d)

Specimen preparation
Conducting the test
Plotting the graph
Interpretation of results and finding bearing capacity

xi)

Direct shear test on sandy soil samples

xii)

Conduct of standard penetration test

xiii)

Vane shear test on cohesive soils

INSTRUCTIONAL STRATEGY
The teacher while imparting instructions are expected to lay greater emphasis on the
practical aspects rather than theory and mathematical treatment. To bring clarity
regarding concepts and principles involved, teachers should organize demonstrations in

114
the laboratories and fields. It is necessary to create understanding that soils fail either
under shear or settlement due to heavy loads. This can be shown by making use of
photographs on working models of such failures. Efforts should be made in the practical
classes that students perform practical exercises individually. Conduct of viva
examination at the end of each practical work will develop clear understanding about the
concepts and principles related to this subject.
RECOMMENDED BOOKS
i)

Punmia, BC; "Soil Mechanics and Foundations"; Delhi Standard Publishers
Distributors.

ii)

Bharat Singh and Shamsher Prakash; "Soil Mechanics and Foundations
Engineering"; Roorkee, Nem Chand and Bros.

iii)

Sehgal, SB; "A Text Book of Soil Mechanics"; Delhi, CBS Publishers and
Distributors

iv)

Bowles,Joseph E; "Engineering Properties of soils and their Measurement";
McGraw Hill.

v)

Gulati, SK; "Engineering Properties of Soils", Tata McGraw Hill

vi)

Ramana, TR.,Krishnamurthy, S., Duggal, AK., "Soil Sampling and Testing - A
Laboratory Manual, TTTI, Chandigarh CBS Publishers

vii)

Khan, Iqbal H, “A Text Book of Geotechnical Engineering”, Delhi, Prentice Hall
of India

viii)

Ranjan Gopal and Rao ASR “Basic and Applied Soil Mechanics”, New Age
Publication (P) Ltd., New Delhi

ix)

S Mittal and JP Shukla, “Soil Testing for Engineers”, Khanna Publishers Ltd.

x)

BIS Codes IS 6403 (latest edition) and IS 1498 (latest edition)

115
4.4

SURVEYING – II
L T P
2 - 6

RATIONALE
The important functions of a civil technician includes the jobs of detailed surveying,
plotting of survey data, preparation of survey maps and setting out works
While framing the curriculum for the subject of surveying, stress has been given to the
development of the skill in each type of survey like chain surveying, compass surveying
and levelling that the Civil Engineering diploma holder will normally be called upon to
perform. Plane table surveying, contouring, theodolite surveying, curves and use of minor
instruments have been also included in this subject.
Field work should be a selected one so that student can check his work and have an idea
of the results the extent of error in the work done by him. As far as possible, the surveys
done should be got plotted, as this will also reveal errors in the work and develop skill in
plotting.
DETAILED CONTENTS
1.

Contouring:

(6 hrs)

Concept of contours, purpose of contouring, contour interval and horizontal
equivalent, factors effecting contour interval, characteristics of contours, methods
of contouring: Direct and indirect, use of stadia measurements in contour survey,
interpolation of contours; use of contour map, Drawing cross section from a
contour map; marking alignment of a road, railway and a canal on a contour map,
computation of earth work and reservoir capacity from a contour map
2.

Theodolite Surveying:

(8 hrs)

Working of a transit vernier theodolite, axes of a theodolite and their relation;
temporary adjustments of a transit theodolite; concept of transiting, swinging, face
left, face right and changing face; measurement of horizontal and vertical angles.
Prolonging a line (forward and backward) measurement of bearing of a line;
traversing by included angles and deflection angle method; traversing by stadia
measurement, theodolite triangulation, plotting a traverse; concept of coordinate
and solution of omitted measurements (one side affected), errors in theodolite
survey and precautions taken to minimize them; limits of precision in theodolite
traversing.
3.

Tacho-metric surveying

(4 hrs)

Tachometry, Instruments to be used in tachometry, methods of tachometry, stadia
system of tachometry, general principles of stadia tachometry, examples of stadia
tachometry

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4. Curves:
Simple Circular Curve:

(6 hrs)

4.1

Need and definition of a simple circular curve; Elements of simple circular
curve - Degree of the curve, radius of the curve, tangent length, point of
intersection (Apex point), tangent point, length of curve, long chord
deflection angle, Apex distance and Mid-ordinate. Setting out of simple
circular curve:
a)
By linear measurements only:
Offsets from the tangent
Successive bisection of arcs
Offsets from the chord produced
b)
By tangential angles using a theodolite

4.2

Transition Curve:

4.3

Need (centrifugal force and super elevation) and definition of transition
curve; requirements of transition curve; length of transition curve for
roads; by cubic parabola; calculation of offsets for a transition curve;
setting out of a transition curve by tangential offsets only
Vertical curve
Setting out of a vertical curve

5.

Minor Instruments:

(4 hrs)

Study and use of the instruments given below to be explained in addition to
providing practice:
a)
b)
c)
d)
f)
6.

Abney level
Tangent clinometer
Ceylon Ghat Tracer
Pentagraph
Planimeter

Study and Use of Modern Surveying equipment such as:
a)
b)
c)
d)
e)
f)
g)

(4 hrs)

Auto level
Digital planimeter
Micro-optic theodolite
Digital theodolite
EDM
Total station
Introduction to GIS

NOTE:
a)
For various surveying equipment relevant Indian Standards should be followed
b)
No sketch of the instruments may be asked in the examination

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PRACTICAL EXERCISES
I.

II.

III.

Contouring:
i)

Preparing a contour plan by radial line method by the use of a Tangent
Clinometer/Tachometer

ii)

Preparing a contour plan by method of squares

iii)

Preparing a contour plan of a Road/Railway track/Canal by taking cross
sections.

Theodolite:
i)

Taking out the Theodilite, mounting on the tripod and placing it back in
the box

ii)

Study of a transit vernier theodolite; temporary adjustments of theodolite

iii)

Reading the vernier and working out the least count, measurement of
horizontal angles by repetition and reiteration methods

iv)

Measurement of vertical angles and use of tachometric tables

v)

Measurement of magnetic bearing of a line

vi)

Running a closed traverse with a theodolite (at least five sides) and its
plotting

Curves
i)

Setting out of a simple circular curve with given data by the following
methods
a)
b)

ii)
IV.

Offsets from the chords produced
One theodolite method

Setting out a circular curve with transition length by linear measurements

Demonstration of digital instruments like Autolevel, digital Planimeter,
microoptic theodolite, digital theodolite

INSTRUCTIONAL STRATEGY
This is highly practice-oriented course. While imparting theoretical instructions, teachers
are expected to demonstrate the use of various instruments in surveying, stress should be

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laid on correct use of various instruments so as to avoid/minimize errors during
surveying. It is further recommended that more emphasis should be laid in conducting
practical work by individual students
RECOMMENDED BOOKS
i)

Narinder Singh; "Surveying"; New Delhi, Tata McGraw Hill Publishing Co Ltd.

ii)

Hussain, SK and Nagraj, MS; "Text Book of Surveying"; New Delhi, S Chand
and Co Ltd.

iii)

Deshpande, RS; "A Text Book Surveying and Levelling"; Poona, United Book
Corporation

iv)

Kocher, CL; "A Text Book of Surveying"; Ludhiana, Katson Publishing House

v)

Kanetkar,TP and Kulkarni, SV., "Surveying and
Parkashan

vi)

Kanetkar, TP; and Kulkarni, SV; "Surveying and Leveling-Vol.2" Poona, AVG
Prakashan

vii)

Punima, BC; "Surveying and Leveling - Vol. 2", Delhi Standard Publishers
Distributors, Delhi

viii)

Shahai, PB; "A Text Book of Surveying Vol. 2", Oxford and IBH Publishing
Co.

Leveling", Poona, AVG

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4.5

STRUCTURAL MECHANICS
L T P
3 1 2

RATIONALE
This is a basic engineering subject. The purpose of the subject is to impart basic
knowledge and skill regarding properties of materials, concept of stresses and strains,
bending moment and shear force diagrams, second moment of area, bending and shear
stresses, slope and deflection and analysis of trusses. The above knowledge will be
useful for designing simple structural components. This subject is very important to
develop basic concepts and principles related to structural mechanics. This subject will
also enable the students to continue their further education.
DETAILED CONTENTS
THEORY:
1.

2.

Properties of Materials

(2 hrs)

1.1

Classification of materials, elastic materials, plastic materials, ductile
materials, brittle materials.

1.2

Tensile test, compressive test, impact test, fatigue test, torsion test.

Simple Stresses and Strains:

(8 hrs)

2.1

Concept of stress, normal and shear stresses, stresses due to torsion.

2.2

Concept of strain and deformation, longitudinal and transverse strain,
poisson's ratio, volumetric strain

2.3

Hooke's law, modulii of elasticity and rigidity, Bulk modulus of elasticity,
relationship between the elastic constants.

2.4

Stresses and strains in bars subjected to tension and compression.
Extension of uniform bar under its own weight, stress produced in
compound bars (two or three) due to axial load.

2.5

Stress-strain diagram for mild steel, mechanical properties, factor of
safety.

2.6

Temperature stresses and strains

2.7

Concept of principal plains, principal stresses and strains

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3.

Bending Moment and Shear Force:
3.1
3.2

4.

5.

6.

(12 hrs)

Concept of a beam and supports (Hinges, Roller and Fixed), types of
beams: simply supported, cantilever, propped cantilever, fixed and
continuous beams.
Types of loads (dead load, live load, snow load, wind load etc) and types
of loading (point, uniformly distributed and uniformly varying loads)

3.3

Concept of bending moment and shear force, sign conventions

3.4

Bending Moment and shear force diagrams for cantilever, simply
supported and overhanging beams subjected to concentrated, uniformly
distributed and uniformly varying loads

3.5

Relationship between load, shear force and bending moment, point of
maximum bending moment and contraflexure.

Second Moment of Area:

(3 hrs)

4.1

Concept of second moment of area, radius of gyration

4.2

Theorems of parallel and perpendicular axes

4.3

Second moment of area for sections of: Rectangle, Triangle, Circle,
Trapezium, Angle, Tee, I, Channel and, Compound. (No Derivation)

Bending and Shear Stresses:

(6 hrs)

5.1

Theory of simple bending

5.2

Assumptions and Application of the equation M/I = F/Y = E/R (no
derivation)

5.3

Moment of resistance, sectional modulus and maximum/permissible
bending stresses in circular, rectangular, I,T and L sections; Comparison
of strengths of the above sections.

5.4

Concept of shear stresses in beams, shear stress distribution in rectangular,
I and T section (Formula to be stated, no derivation)

Slope and Deflection:
6.1

Necessity for determination of slope and deflection

6.2

Moment area theorems (no derivation)

(6 hrs)

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6.3

Computation of slopes and deflections using moment area theorems for:
(a)
(b)

7.

Simply supported beam with UDL over entire span and
concentrated load at any point
Cantilever with UDL over entire span and concentrated load at free
end

Columns and Struts

(4 hrs)

Theory of columns, Euler's critical load, empirical design formulae, Rankine’s,
secant and parabolic formulae, I.S. formulae (Rankin’s - Merchant formulae)
8.

9.

Combined Direct and Bending Stresses:

(3 hrs)

8.1

Concentric and eccentric loads, eccentricity

8.2

Effect of eccentric load on the section, stresses due to eccentric loads,
examples in the case of short columns.

Analysis of Trusses:

(4 hrs)

9.1

Concept of a frame, perfect, redundant and deficient frame, end supports,
ideal and practical trusses.

9.2

Analysis of trusses by:
(a)
(b)
(c)

Method of joints
Method of sections and
Graphical method

PRACTICAL EXERCISES
i)

Determination of yield stress, ultimate stress, percentage elongation and plot the
stress strain diagram and compute the value of young's modulus on mild steel

ii)

Determination of Young's modulus of elasticity for steel wire with searl's
apparatus

iii)

Determination of modulus of rupture of a timber beam

iv)

Determination of maximum deflection and young's modulus of elasticity in
simply supported beam with load at middle third

v)

Verification of forces in a framed structure

122
INSTRUCTIONAL STRATEGY
Teachers are expected to give simple exercises involving the applications of various
concepts and principles being taught in the subject. Efforts should be made to prepare
tutorial sheets on various topics and students should be encouraged/guided to solve
tutorial sheets independently. In the practical works, individual students should be given
opportunities to do practical work, make observations and draw conclusions. Teachers
should also conduct viva examination in which stress should be given on the
understanding of basic concepts and principles.
RECOMMENDED BOOKS
i)

Vazirani, VN and Ratwani, MM., "Analysis of Structures Vol. I", Delhi, Khanna
Publishers.

ii)

Ramamrutham, S., "Strength of Materials", New Delhi Dhanpat Rai and Sons.

iii)

Punmia, BC., "Strength of Materials", Delhi, Standard Publishers Distributors.

iv)

Natrajan, V., "Elements of Strength of Materials", New Delhi, Oxford and IBH
Publishing Co.

v)

Ram Chandra, "Applied Mechanics and Strength of Materials", Delhi: Standard
Publishers.

vi)

VS prasad “Structural mechanics; Galgotia publications Pvt ltd.

vii)

Chakarborty, ‘Strength of Materials; SK Kataria and Sons

viii)

RK Dhawan, ‘A Text Book on Strength of Materials”, Jalandhar IPH

ix)

SS Bhavikatti, “Structural Analysis” Vol. I & II, Vikas Publishing House Pvt.
Ltd., New Delhi

x)

Sadhu Singh “Strengths of Materials” Standard Publishers, New Delhi

123
4.6

PUBLIC HEALTH ENGINEERING DRAWING
L
-

T
-

P
3

RATIONALE
Diploma holders in Civil Engineering are expected to supervise construction of water
supply and waste water treatment works. They are also responsible for waste disposal
activities. This subject aims at imparting skills for preparing water supply and waste
water engineering drawings to develop competencies for reading the drawings, and their
execution in their field
DETAILED CONTENTS
1.

Drains and Sewers
1.1
1.2
1.3

2.

Traps, manholes and inspection chamber
2.1
2.2
2.3

3.

Cross section of standard types of open drains (circular, v-shaped and µshaped) with their foundations
Cross section of earthen ware and RCC sewer pipes
Cross sections of masonry sewers (circular and egg shaped)

Detailed section of floor trap and gully trap
Detailed plan and section of an inspection chamber
Detailed plan and section of a manhole

Septic Tank and Soak Pit
Detailed plan and cross sections of a domestic septic tank and soak pit for 5-10
users with details of open jointed pipes as per BIS Code

4.

Bath room and W.C connections:
4.1

Cross-section through the external wall of lavatories at ground and first
floor showing the single and double pipe system and the connections of
the lavatory to inspection chamber

4.2

Plan of a bathroom showing positions of lavatory, bath tub, wash-basin,
taps and showers

5. Draw the plan and section of a two bed roomed single and double storeyed residential
building showing details of water supply and waste water installation and drainage
systems. Show the drainage and water supply up to the municipal systems on the site
plan also.

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6.

Practice of reading water supply and sanitary engineering drawings (PWD/urban
Development agencies) including hot water and cold water supply system

INSTRUCTIONAL STRATEGY
Teachers are expected to develop skills in preparation of water supply and waste water
engineering drawings as per BIS codes of practice. Attention must be paid towards line
work, specifications writing, dimensioning, proportioning and accuracy at different
intervals of time. Reading and interpreting actual field drawings should also be practiced
so as to develop necessary competency in the students.
RECOMMENDED BOOKS
1.

Civil Engineering Drawings by RP Chandel

2.

Civil Engineering Drawing by NS Kumar; IPH, New Delhi

3.

Civil Engineering Drawing by RS Malik and GA Meo; Asian Publishing House,
New Delhi