DCE SYLLABUS: ENGINEERING MATERIALS

 Engineering Materials

EG 1202 CE

Year: I                                                                                                                                   Semester: II 

Course Contents:

Theory

Unit 1 Stones:                                                                                                                     [10 Hours]

1.1 Introduction to stones as building units

1.2 Stones as various forms of engineering materials

1.3 Formation of rocks and its classification

1.4 Geological classification of stones

1.5 Availability of stones in Nepal

1.6 Physical and Chemical properties of stones

1.7 Quarrying of stones – Excavation, wedging and blasting,

1.8 Blasting of stones – Precautions

1.9 Preparing building units from stones- Dressing, Sawing, Polishing, and seasoning.

1.10 Method of laying stones as building units-natural bed of stones and construction

technique with various stones

1.11 Testing of stones for-

1.11.1 Weathering

1.11.2 Durability,

1.11.3 water absorption and porosity,

1.11.4 specific gravity,

1.11.5 Compressive strength

1.12 Characteristics of good building stones.

Unit:2 Bricks:                                                                                                                     [10 Hours]

2.1 Introduction

2.2 Classification

2.3 Brick earth: Composition of brick earth, functions of various constituent of brick earth,

harmful constituents.

2.4 Preparation of brick earth for making bricks: digging, weathering, blending and temping.

2.5 Moulding of bricks and various methods of moulding

2.6 Drying of moulded bricks,

2.7 Burning of bricks: Intermittent and continuous kilns

2.8 Quality of good bricks

2.9 Tests of bricks: Compressive strength, Water absorption and Efflorescence.

Unit:3 Clay and Clay Products:                                                                                             [6 Hours]

3.1 Various clay products: Roofing Tiles, wall tiles, clay pipes etc

3.2 Tiles: different types and uses in construction

3.2 Types of tiles: Roofing and Paving tiles.

3.4 Manufacturing of tiles

3.5 Properties of tiles

3.6 Characteristics of machine made tiles

Unit:4 Lime:                                                                                                                             [8 Hours]

4.1 Introduction

4.2 Properties of limes

4.3 Classification of limes: Fat Lime (white lime), Lean lime, and Hydrated lime.

4.4 Setting action of lime

4.5 Manufacturing of lime

4.6 Raw materials, burning, slaking and setting.

4.7 local and other methods of manufacture

4.8 Testing of Limes: Visual examination test, acid test, ball test, impurity test and working

test

Unit: 5 Cement:                                                                                                                     [10 Hours]

5.1 Introduction

5.2 Uses of Cement in Construction

5.3 Raw materials (Ingredients) of Cement

5.4 Manufacturing process

5.5 Wet process of manufacturing

5.6 Flow diagram of wet process manufacturing

5.7 Various types of cement and their properties

5.8 Storage and transportation

5.9 Various admixtures

5.10 Standards test on Cement

Unit: 6 Timber and Timber products:                                                                                     [10 Hours]

6.1 Introduction

6.2 Definition and sources of timber

6.3 Classification of trees

6.4 Growth of trees

6.5 Structure of tree, hard wood and soft wood and their characteristics,

6.6 Defects in timber, Felling of timber, Conversion of Timber,

6.7 Various method of Sawing,

6.8 Seasoning of Timber, Objectives of Seasoning, Various methods of seasoning, Prevention

of drying of logs, Preservation of Timbers,

6.9 Plywood, Lamina Boards, Block boards, Hard boards, Fiber boards

Unit: 7 Metals and Alloys:                                                                                                     [10 Hours]

7.1 Ferrous and Non-ferrous metals

7.2 Uses of different metals in construction

7.3 Occurrence of Iron: Pig iron

7.4 Properties and uses of:

- Cast iron

- Wrought iron

7.5 Comparison with wrought iron with cast iron in similar headings

7.6 Steel: Composition, properties and uses, different types of steels

7.7 Corrosion in ferrous metals

7.8 Protection of ferrous metals

7.9 Alloys: composition, properties and uses.

Unit: 8 Paints and Varnishes:                                                                                                     [6 Hours]

8.1 Introduction – Paints and Varnishes

8.2 Uses of Paints and Varnishes

8.3 Types of Paints

8.4 Composition of various types of Paints: Oil paint, Water Paint, Cement paints and

Acrylic paints

8.5 Preparation techniques of various paints

8.6 Methods of application on various construction locations

Unit: 9 Miscellaneous Materials:                                                                                                [5 Hours]

9.1 Asbestos (source, properties, types and hazards)

9.2 Glass (Constituents, types, properties, applications and limitation in use)

9.3 Plaster of Paris

9.4 Insulation Boards

9.5 Terrazzo tiles

9.6 Vinyl tiles

Practical (Laboratory)                                                                                                             (15 Hours)

1. Test fineness of cement

2. Test consistency of cement

3. Determine initial and Final setting time of cement

4. Perform compressive test of cement

5. Perform tensile test of cement

References:

1. Chong, C.V.Y., (1977). Properties of Materials, MacDonald and Evans Ltd. Estover, Plymouth,

UK

2. Gupta, R. B. , (1974). Material Science and Processes, Satya Prakashan, Inc. Tech India

Publication, New Delhi.