JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• 1. To determine the properties of concrete ingredients i.e., cement, sand, coarse aggregate by conducting different tests and decide the suitability
• 2. To recognize the effects of the rheology and early age properties of concrete on its longterm behavior
• 3. To design economic concrete mix proportions for the given exposure conditions and with the available materials, for the desired strength and performance criteria
• 4. To use advanced techniques for Service Life assessment of Concrete Structures

Course Outcomes

After completion of the course, students should be able to

• 1. Design an appropriate economic cementitious composite based on the performance requirements
• 2. Determine the characteristics of concrete making materials and decide it’s suitability
• 3. Judge and Resolve any controversy that arises regarding material suitability through required field and laboratory investigations
• 4. Assess the service life of an existing structure through determining the mechanical, durability and the current state of corrosion of reinforcement in concrete

UNIT - I

Fresh and Hardened Concrete: Fresh concrete - Workability tests on concrete- Workability tests on Self Compacting Concretes - segregation and bleeding. Hardened Concrete - Abram's law - Gel- space ratio - Maturity concept - Stress Strain behavior, Creep and Shrinkage.

UNIT - II

High Performance and High Strength Concretes: High performance concrete - Requirements and properties of high-performance concrete - Design considerations – High strength concrete – Design considerations.

UNIT - III

Advanced Concrete Design: Light weight concrete - Self Compacting concrete - Polymer concrete - Fiber reinforced concrete – Reactive powder concrete - Bacterial concrete-Geo-polymer concrete – Requirements and guidelines- Advantages and Applications – Porous pavement – White Topping – Roller compacted concrete

UNIT - IV

Concrete Mix Design: Quality control - Quality assurance - Quality audit - Mix design by various methods - BIS method - DOE method - ACI method - Erntroy & Shacklock’s method.

UNIT - V

Performance Evaluation of Reinforced Concrete Structures: Durability of concrete & Corrosion tests - Resistivity of concrete - Half Cell Potential - Rapid Chloride Penetration Test - Macro cell Corrosion - Effects of concrete exposed to acidic environment - Durability Factor - 7 Accelerated Corrosion Cracking Test - Non-destructive evaluation of concrete structures - Ultrasonic Pulse Velocity - Evaluation of Dynamic Shear & Young’s Modulus - Introduction to XRD & SEM Analysis.

TEXT BOOKS:

• 1. Properties of Concrete, A. M. Neville, Pearson Education
• 2. Concrete Microstructure, Properties and Materials, P. K. Mehta and Paulo J. M. Monteiro, McGraw Hill
• 3. Civil Engineering Materials by Shan Somayaji, Pearson Publishers, 2000

REFERENCES:

• 1. Corrosion of Steel in Concrete, P. Schiessl, Chapman & Hall
• 2. Concrete Making Materials, Sandor Popovics, Hemisphere Publishing Corporation
• 3. Aggregates in Concrete, Mark Alexander & Sydney Mindess, Taylor & Francis 4. Cement Based Composites, Andrzej M. Brandt M. Tech in COMPUTER AIDED STRUCTURAL ENGINEERING I YEAR II – SEMESTER