A REVIEW ON ADVANTAGES OF SELF HEALING CONCRETE

Self-healing concretes are being widely recognized as a remedial technique to improve the durability of concrete. Although, few review papers on self-healing concrete were published, a strong review on advantages of self-healing concrete cannot be found.. In fact, the interest on concrete’s self-healing process is increasing, due to the rapidly deterioration of that material which tends to crack and thus quickly deteriorate. In this paper, a review on advantages of self healing concrete and detail about self healing concrete. In Concrete, cracking is a common phenomenon developed due to relatively low tensile strength. High tensile stresses may be developed inconcrete due to external loads, imposed deformations, plastic shrinkage, plastic settlement and expansive reactions. Proper and immediate treatment should be done in order to prevent expansion of cracks which may eventually be of higher cost. Bacterially induced calcium carbonate precipitation has been proposed as an alternative and environmental friendly crack repair technique. It is expected that further development of this techniques will result in a more durable, sustainable and crack free concrete that can be used effectively for constructions. Thus this paper is an attempt to define self healing concrete, its classification and types, advantages and its applicatio