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Review Article

JCR. 2020; 7(18): 1992-1997


Self Repairing Techniques of Concrete and Cementitious Materials: A Critical Literature Review

Anikait Gupta, Sanjeev Naval.

Abstract
Micro cracks formation is one of the frequent problem found in concrete. This problem is relatively due to low tensile strength. One of the major causes for reduced service life of concrete structures is due to the formation of cracks. In moist conditions, it has been observed the durability of the concrete structures have been reduced and this happened due to the entrance of chemicals through micro pores that results in low permeability. It is advisable to prevent these cracks and treat them at the initial stage because treating these cracks at the later stage involve cost crisis. Self repairing techniques are endorsed to overcome these situations. Self repairing concrete has great potential to heal itself when cracks occurred in concrete structures. There will be gain in strength of concrete when bio concrete is used. The cost of bio concrete is high due to which it is difficult to use at the large scale but researches are trying their best efforts so that cost issues will overcome and it will be available for construction purposes soon.

Key words: Autogenous self repairing; Autonomous self repairing; Bio Concrete; Cracks; Durability; Strength; Bacteria



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