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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What are the causes of deterioration? Discuss about the quality of supervision to be followed at a site. Define physical inspection of damaged structure.
Discuss about the environment effects which leads to deterioration of concrete structure. Continue with Google or Continue with Facebook. What are the possible decisions that can be made after evaluating the strength of a structure?
CE Repair and Rehabilitation of Structures Lecture Notes – Edition
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 ce20711 may be, obtained.
Define the fixed percentage method of evaluating the strength of existing structure. Ntoes is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. What do I get? What are the factors to be considered by the designer at the construction site. How xe2071 we determine the cause for deterioration of concrete structure? Salinity causes corrosion of reinforcing bars as well as deterioration of concrete. What are the two facets of maintenance?
What are the steps in selecting a repair procedure?
REPAIR AND REHABILITATION OF STRUCTURES – Question and answer
To stop further damages, preventive measure necessary may be planned which may warrent urgent execution. The beam-column joints are particularly prone to defective concrete, if detailing and placing of reinforcement is not done properly. Alkali-aggregate reaction and sulphate attack results in early deterioration.
Discuss about the design and construction errors leading to deterioration of a structure. 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.
Clayey materials in the fine aggregates weaken the mortar aggregate bond and reduce the strength. What is the effect of selecting poor quality material for construction?
REPAIR AND REHABILITATION OF STRUCTURES – Question and answer Civil Engineering (CE) Notes | EduRev
How deterioration occurs due to corrosion? It has gotten views and also has 4. Quality of materials, to be used in construction, should be ensured by means various tests as specified in the IS codes. Design of concrete structures governs the performance of concrete structures. Rehabilitation is the process of returning a building or an area to its previous good conditions. What are the steps in repair aspect? Well designed and detailed concrete structure will show less deterioration in comparison with poorly designed and detailed concrete, in the similar condition.
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. In aggressive environme4nt concrete structure will be severely reduces. Repair is the process of restoring something that is damaged or deteriorated or broken, to good condition.
Why do I need to sign in? Maintenance is the act of keeping something in good condition by checking or repairing it regularly. Insufficient vibration may result in porous and honey combined concrete, whereas excess vibration may cause segregation.
Inadequate concrete cover may lead to carbonation depth reaching up to the reinforcement, thus, increasing the risk of corrosion of the reinforcement.