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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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REPAIR AND REHABILITATION OF STRUCTURES – Question and answer

The two facets of maintenance are i Prevention ii Repair 5. 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.

What are the possible decisions that can be made after evaluating the strength of a structure? Quality of materials, to be used in construction, should be ensured by means various tests as specified in the IS codes. Discuss about the design and construction errors leading to deterioration of a structure. Inadequate concrete cover may lead to carbonation depth reaching up to the reinforcement, thus, increasing the risk of corrosion of the reinforcement.

Already Have an Account? Continue with Google or Continue with Facebook. What ve2071 the steps in selecting a repair procedure? Insufficient vibration may result in porous and honey combined concrete, whereas excess vibration may cause segregation. Well designed and detailed concrete structure will show less deterioration in comparison with poorly designed and detailed concrete, in the similar condition. It has gotten views and also has 4.

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What is the effect of selecting poor quality material for construction? Maintenance is the act of keeping something in good condition by checking or repairing it regularly. How can we determine the cause for deterioration of concrete structure? How deterioration occurs due to corrosion? Define physical inspection of damaged structure. What do I get? Why do I need to sign in? Clayey materials in the fine aggregates weaken the mortar aggregate bond and reduce the strength.

Salinity causes corrosion of reinforcing bars as well as deterioration of concrete. Repair is the process of restoring something that is damaged or deteriorated or broken, to good condition. Define the fixed percentage method of evaluating the strength of existing structure.

What are the steps in repair aspect? Adherence to specified water-cement ratio controls strength, permeability durability of concrete. By continuing, I agree that I am at least 13 years old and have read and agree to xe2071 terms of service and privacy policy. What are the causes of deterioration?

CE REPAIR AND REHABILITATION OF STRUCTURES Syllabus ~ Online Virtual-Tutor

Share with a friend. Discuss about the environment effects which leads to deterioration of concrete structure. 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.

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.

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To stop further damages, preventive measure necessary may be planned which may warrent urgent execution. Alkali-aggregate reaction and sulphate attack results in early deterioration.

Rehabilitation is the process of returning a building or an area to its previous good conditions. Continue with Google Continue with Facebook. What are the factors to be considered by the designer at the construction site.

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.

Design of concrete structures governs the performance of concrete structures. What are the two facets of maintenance? In aggressive environme4nt concrete structure will be severely reduces.

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.