ANNA UNIVERSITY NOTES FOR CIVIL ENGINEERING EVEN SEMESTER CE REPAIR AND REHABILITATION OF STRUCTURES 2. Structures-Lecture-Notes-Shivaram-Edition#.VTO31yGqqko. CE REPAIR AND REHABILITATION OF STRUCTURES. UNIT 1. MAINTENANCE AND REPAIR . Uploaded by.
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Maintenance is the act cr2071 keeping something in good condition by checking or repairing it regularly. Discuss about the design and construction errors leading to deterioration of a structure. What do I get? Alkali-aggregate reaction and sulphate attack results in early deterioration.
Clayey materials in the fine aggregates weaken the mortar aggregate bond and reduce the strength. Why do I need to sign in? What are the causes of deterioration? What are the steps in repair aspect? Repair is the process of restoring something that is damaged or deteriorated or broken, to good condition.
CE2071 Repair And Rehabilitation Of Structures Important 16 Mark Questions
Well designed and detailed concrete structure will show less deterioration in comparison with poorly designed and detailed concrete, in the similar condition. What are the factors to be considered by the designer at the construction site. Quality of materials, to be used in construction, should be ensured by means various tests as specified in the IS codes.
Construction work should be carried out as per the laid down specification.
CE Repair and Rehabilitation of Structures Lecture Notes – Edition
Already Have an Account? EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. What are the two facets of maintenance?
The beam-column joints are particularly prone to defective concrete, if detailing and placing of reinforcement is not done properly. Discuss about the quality of supervision to be followed at a site. What is the effect of selecting poor quality material for construction?
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CE REPAIR AND REHABILITATION OF STRUCTURES Syllabus ~ Online Virtual-Tutor
How deterioration occurs due to corrosion? Spalling of concrete cover Cracks parallel to the reinforcement Spalling at edges Swelling of concrete Dislocation Internal cracking and reduction in area of steel reinforcement. Continue with Google or Continue with Facebook. Micro-cracks present in the concrete are the sources of ingress of moistures atmospheric carbon di-oxide into the concrete which attack reinforcement and with various ingredients of concrete. Some of the use full in formation may be obtained from the physical inspection of damaged structure, like nature of distress, type of distress, extent damage and its classification etc, their causes preparing and documenting the damages, collecting the samples for laboratory testing and analysis, planning for in situ testing, special environmental effects which have not been considered at the design stage and information on the loads acting on the existing structure at the time of damage may be, obtained.
To stop further damages, preventive measure necessary may be planned which may warrent urgent execution.
Design of concrete structures governs the performance of concrete structures. Insufficient vibration may result in porous and honey combined concrete, whereas excess vibration may cause segregation.
Discuss about the environment effects which leads to deterioration of concrete structure. Define physical inspection of damaged structure. Salinity causes corrosion of reinforcing bars as well as deterioration of concrete.
Adherence to specified water-cement ratio controls strength, permeability durability of concrete. Inadequate concrete cover may lead to carbonation depth reaching up to the reinforcement, thus, increasing the risk of corrosion of the reinforcement. What are the possible decisions that can be made after evaluating the strength of a structure?
In aggressive environme4nt concrete structure will be severely reduces. How can we determine the cause for deterioration of concrete structure?
Define the fixed percentage method of evaluating the strength of existing structure. The two facets of maintenance are i Prevention ii Repair 5. What are the steps in selecting a repair procedure?