Unit 1 Introduction

4 lecture hours

• Introduction of health monitoring of civil structures
• Need and objectives of condition assessment of structures
• Overview of various evaluation techniques for evaluating performance of structures
• Introduction of performance indices or rating system of the structures

Unit 2 Durability and serviceability of structures

6 lecture hours

• Construction materials characteristics and properties
• Quality assurance criterion of construction materials and construction practices
• Factors influencing durability and serviceability of the structures
• Stages of distress in structures

Unit 3 Condition assessment of structures

• Condition Survey: Preliminary Inspection
• Planning of condition assessment of the structure
• Visual Inspection
• Field/Laboratory Testing
• damage rating system of the structures
• considerations for repair strategy
• Evaluation techniques for condition assessment: Concrete Strength Assessment: Rebound hammer test
• Ultrasonic pulse velocity test
• Penetration resistance
• Pullout test
• Core sampling and testing
• Chemical Tests: Carbonation test
• Chloride content
• Sulphate attack test 7 17.5% Corrosion Potential Assessment: Cover meter survey
• Half-cell potential survey
• Resistivity measurement
• Fire Damage Assessment: Differential Thermal Analysis (DTA)
• X-ray Diffraction (XRD) Structural Integrity/Soundness Assessment: Radiography
• Impact-echo test
• Dynamic Testing of Structures Present condition of structures: Rating system of the structure

Unit 4 Selection of repair materials for concrete

• Essential parameters for repair materials
• Criteria for material selection
• Methodology of selection
• Health and safety precautions for handling and applications of repair materials Materials for repair: Premixed cement concrete/mortars
• Polymer modified mortars and concrete
• Epoxies and epoxy systems including epoxy mortars/concretes
• Polyester resins
• Surface coatings
• Grouting materials
• Bonding agents. 5 12.5%

Unit 5 Rehabilitation and retrofitting methods

• Repair options
• Important factors to be considered for selection of repair methods
• Performance requirements of repair systems
• Repair stages
• Repair Methods: Repairs using mortars
• Dry pack and epoxy bonded dry pack
• Pre-placed aggregate concrete (PAC)
• Concrete replacement
• Epoxy bonded concrete
• Silica fume concrete
• Polymer concrete system
• Strengthening concrete by surface impregnation using vacuum methods
• Thin polymer overlays
• Thin epoxy overlay
• Resin/polymer modified cement slurry injection
• Protective seal coats on the entire surface
• Plate bonding
• RCC jacketing
• Propping and supporting
• Fiber wrap technique
• Foundation rehabilitation methods
• Chemical and electro-chemical methods of repair 7 17.5%

Unit 6 Repair/Rehabilitation Strategies

40 lecture hours

• Stress reduction
• Repair/Strengthening of columns
• base isolation
• Structural repair work and its specifications: General
• Surface preparation
• Crack/Honeycomb area repair
• Bonding coats
• Structural repair items
• Water proofing & protective coatings
• Masonry repairs
• Chhajja/sunshades repair
• Testing of materials and Pre /Post repair testing of structure. 6 15% 5 Strengthening of Earthquake damaged buildings
• Condition assessment of buildings
• Retrofit of non-engineered buildings
• Retrofit of masonry buildings
• Retrofit of historical and heritage structures
• Retrofit of steel buildings
• Retrofit of foundations
• efficiencies in structure requiring seismic retrofit
• Design philosophy
• Techniques to enhance the seismic resistance of structures
• Advanced techniques for making seismic resistant structures. 5 10% Reference/Books:  Failures and repair of concrete structures by S.Champion
• John Wiley and Sons
• 1961  “Earthquake resistant design of structures” by Pankaj agarwal
• Manish shrikande, PHI, 2006.  Concrete repair and maintenance Illustrated by Peter.H.Emmons
• Galgotia publications Pvt
• 2001.  Repair and protection of concrete structures by Noel P.Mailvaganam
• CRC Press
• 1991.  Diagnosis and treatment of structures in distress by R.N.Raikar Published by R & D Centre of Structural Designers and Consultants Pvt.Ltd
• Mumbai.  Handbook on repair and rehabilitation of RCC buildings
• Government of India  Handbook on SEISMIC Retrofit of buildings
• Government of India  Handbook on seismic retrofit of buildings, A