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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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CE Repair and Rehabilitation of Structures Lecture Notes – Edition

How deterioration occurs due to corrosion? Clayey materials in the fine aggregates weaken the mortar aggregate bond and reduce the strength.

The beam-column joints are particularly prone to defective concrete, if detailing and placing of reinforcement is not done properly. Define the fixed percentage method of evaluating the strength of existing structure. The two facets of maintenance are i Prevention ii Repair 5. Design of concrete structures governs the performance of concrete structures.

Some of nottes 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 notea the existing structure at the time of damage nottes be, obtained.

Discuss about the design and construction errors leading to deterioration of a structure. What are the steps in selecting a repair procedure? What are the possible decisions that can be made after evaluating the strength of a structure? By continuing, I agree that Nktes am at least 13 years old and have read and agree to the terms of service and privacy policy.

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Discuss about the quality of supervision to be followed at a site.

What are the causes of deterioration? Continue with Google or Continue with Facebook. What are the two facets of maintenance? What are the steps in repair aspect? Rehabilitation is the process of returning a building or an area to its previous good conditions.

Already Have an Account? Repair is the process of restoring something that is damaged or deteriorated or notss, to good condition. 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. 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 factors to be considered by the designer at the construction site. Alkali-aggregate reaction and sulphate attack results in early deterioration.

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REPAIR AND REHABILITATION OF STRUCTURES – Question and answer

It has gotten views and also has 4. Maintenance is the act of keeping something in good condition by checking or repairing it regularly. Construction work should be carried out as per the laid down specification.

EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. Quality of materials, to be used in construction, should be ensured by means various tests as specified in the IS codes. Insufficient vibration may result in porous and honey combined concrete, whereas excess vibration may cause segregation. In aggressive environme4nt concrete structure will be severely reduces. Why do I need to sign in? 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.

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What is the effect of selecting poor quality material for construction? Continue with Google Continue with Facebook. What do I get? Well designed and detailed concrete structure will show less deterioration in comparison with poorly designed and detailed concrete, in the similar condition.

To stop further damages, preventive measure necessary may be planned which may warrent urgent execution. Adherence to specified water-cement ratio controls strength, permeability durability of concrete. How can we determine the cause for deterioration of concrete structure? Salinity causes corrosion of reinforcing bars as well as deterioration of concrete. Share with a friend. Discuss about the environment effects which leads to deterioration of concrete structure.

Define physical inspection of damaged structure.

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