Methods of Rebar Protection and Repair Techniques on Concrete Structures
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 137 | Views: 373

Informative Article | Civil Engineering | India | Volume 6 Issue 6, June 2017 | Popularity: 6.6 / 10


     

Methods of Rebar Protection and Repair Techniques on Concrete Structures

Dr. S. Vijaya Mohan Rao


Abstract: The major factors leading to the deterioration of reinforced concrete are poor construction practice and the environment. Rebar corrosion is widely regarded as the most common cause of deterioration and premature failure of reinforced concrete (RC) structures These factors are interrelated, for example inadequate depth of cover to rebars, or excessively porous concrete, may allow penetration of atmospheric contaminants such as carbon dioxide or chlorides to reach the steel. In the presence of oxygen and moisture, this will cause it to corrode. Sooner or later, cracking and spalling of the concrete cover will occur as the expanding rust products build up bursting stresses around the rebars. It is therefore of great importance in aggressive environments to provide a sufficient cover of high quality concrete to all embedded steel. This is particularly so in coastal and marine structures, where chloride contamination from wind-borne salt spray can be severe. The primary methods commonly used to treat concrete which is suffering, or threatened by corrosion damage to embedded steel are patch repairs or partial rebuild, Protective coatings, Cathodic protection. Cathodic protection has become accepted and widely used as a means of halting corrosion of steel in deteriorating reinforced and prestressed concrete structures. The advantage of Cathodic Cathodic Protection exhibits long-term economical advantages when discounted over the design life of the system. In many cases, the first cost may be less than a conventional patch repair, with a life four to five times longer. It is also recognized as a means of prevention of corrosion damage in new structures, where for a small percentage of the capital cost the design life expectations can be met without repeated and expensive repairs


Keywords: Steel, Carbonation, Chloride, Corrosion, Concrete, Cracks, Spalls, CP systems


Edition: Volume 6 Issue 6, June 2017


Pages: 958 - 961



Make Sure to Disable the Pop-Up Blocker of Web Browser


Text copied to Clipboard!
Dr. S. Vijaya Mohan Rao, "Methods of Rebar Protection and Repair Techniques on Concrete Structures", International Journal of Science and Research (IJSR), Volume 6 Issue 6, June 2017, pp. 958-961, https://www.ijsr.net/getabstract.php?paperid=ART20173656, DOI: https://www.doi.org/10.21275/ART20173656

Similar Articles

Downloads: 121

Research Paper, Civil Engineering, Iraq, Volume 6 Issue 5, May 2017

Pages: 1150 - 1157

Response of Laced Reinforced Concrete Beams to Fatigue Loading

Hayfaa Dhumad Hasan Al-Abboodi, Abass Abdulmajeed Allawi, Chai Hwa Kian

Share this Article

Downloads: 114

Research Paper, Civil Engineering, Iraq, Volume 6 Issue 4, April 2017

Pages: 2398 - 2405

Experimental Behavior of Laced Reinforced Concrete Beams under Static Loading

Hayfaa Dhumad Hasan Al-Abboodi, Abass Abdulmajeed Allawi, Chai Hwa Kian

Share this Article

Downloads: 265 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1

Research Paper, Civil Engineering, India, Volume 9 Issue 6, June 2020

Pages: 954 - 955

Bamboo as a Building Material in North East of India

Nafisa Nazneen Choudhury

Share this Article

Downloads: 189

Case Studies, Civil Engineering, India, Volume 8 Issue 4, April 2019

Pages: 141 - 154

Case Study Papers on Practical Guidelines for the Inspection and Repair of Hot Dip Galvanized Coatings

Harshal S Khode

Share this Article

Downloads: 1 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1

Research Paper, Civil Engineering, Nigeria, Volume 12 Issue 6, June 2023

Pages: 2656 - 2661

Locally Manufactured Steel Reinforcing Bars Used in the Nigerian Construction Industry

Boku-Oriseh Ogheneyole Precious, Prof. J.O Onyeka

Share this Article
Top