Concrete Technology

CET-226

Concrete Technology

Internal Marks: T P

40

L

External Marks: 1 0

60

3

Total Marks:

100

UNIT-I (11 Hours) Introduction: Concrete as a Structural material, constituent materials of concrete. Cement: Types of cements, basic chemistry, heat of hydration, Testing of cement, Fineness, consistency, setting times, strength, types of Portland cements, expansive cements. Pozzolanic materials : Various types, Fly ash - its types, properties, applications & limitations. Aggregates: Classification of aggregates, Mechanical properties: Bond, strength, toughness, hardness, physical Properties, Specific Gravity, Bulk density, porosity and absorption, Moisture content, bulking of sand, sieve analysis, fineness modulus, grading of aggregate, maximum aggregate size.

UNIT-II

(11 Hours)

Mix Design: Factors to be considered: water/cement ratio, durability, workability, cement and aggregate content, Design of mix by IS & ACI methods. Physical Properties of Fresh Concrete: Workability, factors affecting, methods of determination of workability, Density of fresh concrete. Strength of concrete: Porosity, Gel/space ratio, Total voids in concrete, factors affecting strength: Water/cement ratio, relation between tensile & compressive strengths; bond to reinforcement. Admixtures and Super Plasticizers: Functions, classification, accelerating admixtures, retarding admixtures, air containing admixtures

UNIT-III

(11 Hours)

Mixing, Handling, Placing & compaction of concrete: Mixers, mixing time, ready mixed concrete, pumped concrete, vibration of concrete, internal & external vibrators, re-vibration, shot-crete. Permeability and Durability: Permeability, sulphate attack, action of frost, frost resistance concrete. Special concretes: Polymer – Concrete composites, fibre reinforced concrete Ferrocement, Roller compacted concrete, very high strength concrete. Books Recommended:

1. Neville A M and Brookes J J “Concrete Technology” Pearson Publishers, New Delhi,1994. 2. Neville A M “Properties of Concrete” Pearson Publishers, New Delhi, 2004. 3. Gambhir M L “Concrete Technology” Tata McGraw Hill, New Delhi, 1995. 4. Shetty M S “Concrete Technology” S. Chand & Company, New Delhi, 2002. 5. Mehta P K “Microstructure of Concrete” Indian Concrete Institute and ACC, Bombay, 1997.

CEP-227 Fluid Mechanics-II Lab

Internal Marks: 30 L T P External Marks: 20 0 0 2 Total Marks:

50

1. Verification of Stoke’s Law 2. Boundry layer development on a flat plate 3. Determination of drag on a body in a wind tunnel. 4. Determination of manning’s coefficients of rugosity. 5. Determination of elements of hydraulic jump. 6. Discharge and flow profile over a broad crested weir.

Books Suggested: Experimental Fluid Mechanics: G.L.Asawa Open Channel Hydraulics: V.T.Chow

CEP-228 Surveying-II Lab

Internal Marks: 30 L T P External Marks: 20 0 0 2 Total Marks:

50

1. Measurement of horizontal angles by repetition and reiteration methods using a theodolite. Measurement of vertical angle by theodolite.

2. Determination of tacheometric constants. Determination of reduced levels by tacheometric observations.

3. Determination of height of an inaccessible object with instrument axis in the same plane as the object.

4. Determination of height of an inaccessible object with instrument axis in different planes as the object. 5. Setting out a transition curve. Setting out of circular curves in the field using different methods

CE-313 CONCRETE LAB

Internal Marks: 30 P

LT

External Marks: 20 2

00

Total Marks: 50

1. To Determine the Specific Gravity of cement. 2. To Determine the Standard Consistency, Initial and Final Setting Times of Cement. 3. To Determine Soundness of Cement. 4. To Determine the Compressive Strength of Cement. 5. To Determine the Compressive Strength of Bricks/Tiles. 6. To Determine the Fineness Modulus of Fine and Coarse Aggregates. 7. To Determine the Bulk Density, Water Absorption and Sp. Gr. of Fine and Coarse Aggregates. 8. To Determine the Slump, Compaction Factor and Vee-Bee Time of Concrete. 9. Mix Design of Concrete. 10. To Determine the Compressive Strength of Concrete by Cube and Cylinder. 11. To carry out the Tensile and Flexural tests of Concrete. 12. To determine the Compressive Strength of hardened Concrete by NonDestructive Test

Books/Manuals :1. Concrete Manual By Dr. M.L. Gambhir, Dhanpat Rai & Sons Delhi. 2. Concrete Lab Manual by TTTI Chandigarh