Causes and Repair Techniques for Distresses in Concrete Pavements

Authors

  • Rajbir Singh
  • Sachin Dhull

Abstract

Concrete pavements are designed on the basis of fatigue of concrete, taking traffic and environmental factors into considerations. It is expected that if designed properly, concrete pavements should not suffer from any major form of distress and cracking. Global and limited Indian experience on design, construction and performance of concrete pavements have shown widely different performance of such pavements. Some have performed extremely well and have served beyond their design service life. Some have shown severe signs of distress and premature failure. Some distresses especially related to joints are bound to occur during the service life of the pavements but sometimes it may happen that concrete pavements crack even before its opening to traffic. An engineer who is concerned with the design, construction and maintenance of rigid pavement, must be able not only to evaluate fully the factors that affect the design of pavement but it is also necessary to have an understanding of types of pavement distresses and their causes. In particular, it is important to ascertain whether certain types of distress are progressive, leading to eventual failure of the road, or whether they are non-progressive. Timely repair of distressed pavements with proper technique and material may arrest further deterioration. The paper will discuss different types and causes of distresses of concrete pavements. Repair techniques such as full depth repair, slab replacement, crack sealing, joint resealing etc, which have recently been adopted at some of the project sites will also be discussed in detail.

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Published

2022-06-04 — Updated on 2022-06-15

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