Laboratories

Concrete Technology Lab

The lab enables students to carry various experiments regarding compressive strength of concrete, tensile strength of concrete, workability test, design mix, modulus of rupture of concrete. All these experiments intended to determine the quality of concrete.

Concrete is one of the important construction materials. Study of its constituents and their properties is essential for preparing desired mix so as to develop required strength necessary for various types of Structures. The durability of the structures depends upon the care with which ingredients of concrete are selected, mixed, placed, compacted and cured. Concrete is used not only for construction of building, but also for concrete roads, gravity dams, retaining walls, water tanks, airport runway pavements, etc.

The information regarding various properties of concrete in its plastic stage as well as hardened Stage is necessary to enable the engineer for quality control during construction work. Knowledge of the subject is essential for the Design of Concrete Structures. Strength, workability, durability are important characteristics of concrete. Compressive strength of concrete describes the load caring capacity, workability is the indicator of ease with which we work on concrete, Where as durability shows the resistance of concrete to environmental attack.

After performing the experiments the students will be able to assure the quality of concrete and its ingredients. Also they able to design various grades of concrete by DOE, ACI and Indian method of concrete mix design.

Equipments:

  • Vicat apparatus
  • Le Chatlier Mould
  • Length gauge
  • Thickness gauge
  • Slump cone apparatus
  • Sieve shaker
  • Density basket
  • Measuring cylinders
  • Compression testing machine

Basic principles: Equivalent force system; Equations of equilibrium; Free body diagram; Reaction; Static indeterminacy. Structures: Difference between trusses, frames and beams, Assumptions followed in the analysis of structures; 2D truss; Method of joints; Method of section; Frame; Simple beam; types of loading and supports; Shear Force and bending Moment diagram in beams; Relation among load, shear force and bending moment. Friction: Dry friction; Description and applications of friction in wedges, thrust bearing (disk friction), belt, screw, journal bearing (Axle friction); Rolling resistance. Virtual work and Energy method: Virtual Displacement; Principle of virtual work; Applications of virtual work principle to machines; Mechanical efficiency; Work of a force/couple (springs etc.); Potential energy and equilibrium; stability. Center of Gravity and Moment of Inertia: First and second moment of area; Radius of gyration; Parallel axis theorem; Product of inertia, Rotation of axes and principal moment of inertia; Moment of inertia of simple and composite bodies. Mass moment of inertia. Kinematics of Particles: Rectilinear motion; Curvilinear motion; Use of Cartesian, polar and spherical coordinate system; Relative and cons trained motion; Space curvilinear motion. Kinetics of Particles: Force, mass and acceleration; Work and energy; Impulse and momentum; Impact problems; System of particles. Kinematics and Kinetics of Rigid Bodies: Translation; Fixed axis rotational; General plane motion; Coriolis acceleration; Work-energy; Power; Potential energy; Impulse-momentum and associated conservation principles; Euler equations of motion and its application.

The Environmental Engineering Laboratory in the Department of Civil Engineering provides good testing, teaching and research facilities. These laboratories are recently constructed and contain modern analytical instruments and facilities to carry out simple to sophisticated experiments i.e. Physico-chemical and Biological parameters testing for Water and Wastewater, Air pollutants testing in stack and environment etc. The Laboratory has sophisticated equipment to analyze pollution parameters in water and waste water, soil and air.

The sophisticated instrument list includes:

Sr No Practical Name Reference Application
1 pH test IS 3025 (part 11) To determine concentration of hydrogen ion in water and waste water sample
2 Alkalinity test IS 3025 (part 23) Determination of alkalinity in water and waste water sample
3 Acidity test IS 3025(part 22) Determination of acidity in water and waste water sample
4 Turbidity test IS 3025 (part 10) Determination of turbidity in water and waste water sample
5 Chlorides test IS 3025 (part 32) Determination of chlorides in water and waste water sample
6 Residual chlorine test IS 3025 (part 26) Determination of residual chlorine in water sample
7 Dissolved oxygen test IS 3025 (part 38) Determination of Dissolved oxygen concentration in water and waste water sample
8 Total hardness IS 3025 (part 23) Determination of total hardness in water sample
9 Calcium Hardness IS 3025 (part 23) Determination of calcium hardness in water sample
10 Conductivity test IS 3025 (part 14) Determination of conductivity in water sample
11 BOD test IS 3025 (part 44) Determination of biochemical oxygen demand in waste water sample
12 COD test IS 3025 (part 58) Determination of chemical oxygen demand in waste water sample
13 Oil and grease test IS 3025 (part 39) Determination of oil and greese in waste water sample
14 Particulate matter (PM10) test IS 5182 (part 23) To determine particulate matter in ambient air

The student will gain hands-on experience in conducting soil laboratory tests to determine soil parameters needed for geotechnical engineering design, and to communicate this information with others. Further the laboratory involves determination of moisture content, density, plastic limit, and liquid limit, shrinkage limit, bearing capacity, grain size distribution and specific gravity of soil.

A typical geotechnical engineering laboratory helps in identifying the engineering behavior of geomaterials (soils and rocks) and byproducts such as fly ash etc. There are different physical, chemical and geotechnical properties determined in the laboratory that is required for identifying the geomaterials. This information is used by geotechnical engineer for designing the type of foundations, earthworks such as dams, embankments, tunnels, reservoirs, pavement subgrades, and specialized applications like waste containment systems. The preciseness of such design is entirely based on the experimental information obtained from a geotechnical laboratory. Therefore, geotechnical engineering laboratory has a great role to play in rendering the subsurface a safe and stable load bearing medium.

This laboratory gives the basic understanding of structural member under the action of loads. The students will experience the changes in behaviour of structure due to application of loads. Basics of determinate structures will be introduced through experiment.

The main purpose of any structure is to support the loads coming on it by properly transferring them to the foundation. The students will be able to compute internal, external forces and displacements produced by the application of loads to make the structure safe. Detailed analysis is to be performed to determine the bending moments, shear force, axial forces etc at the required section.

Equipments:

  • Polygon law of forces
  • Parallelogram law of forces
  • Bell crank lever apparatus
  • Parallel forces apparatus
  • Jib crane apparatus
  • Fletchers Trolley apparatus
  • Centrifugal force apparatus
  • Board Model gears

List of Experiments:

  • Verification of law of polygon of forces
  • Moment of inertia of flywheel
  • Belt friction
  • Single purchase crab or spur gear pulley block
  • Different axle and wheel of differential pulley block
  • Worm and worm wheel
  • Screw Jack

It includes essential measurements to determine the relative position of points or physical and cultural details above, on, or beneath the surface of the Earth, and to depict them in a usable form, or to establish the position of points or details.

Surveying takes the foremost place in planning, designing and execution of any kind of construction work. Moreover, knowledge in surveying plays a vital role in the professional practice of civil engineers and architects. Hence, the students are introduced to a course on surveying, provided with ample time and equipments to perform the field exercises on their own.

Equipments:

  • Metric Chain
  • Ranging Rods
  • Cross Staff
  • Optical square
  • Dumpy Level
  • Auto Level
  • Tilting Level
  • Transit Theodolite
  • Plane Table
  • Alidade
  • Spirit Level
  • Plumb bob
  • Digital Planimeter

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FOR STUDENTS