期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：3
页码：4407
DOI：10.15680/IJIRSET.2016.0503244
出版社：S&S Publications
摘要：Cracking is one of the major challenge faced by Civil Engineer is to carry out suitable repairs andremedial measures for cracks. For repairs and remedies to be effective, it is essential that the engineer should haveproper understanding of various causes of cracking. For investigating the causes it is necessary to observe carefullylocation, shape, size, depth, behaviour and other characteristics of the cracks, and to collect information aboutspecifications of the job, time of construction and past history of the structure. It will also be necessary for the engineerto know as to when the cracks first came to notice and whether the cracks are structural or non-structural.Structuralcracks are those which are due to incorrect design, faulty construction, poor workmanship, Poor Quality & Material,overloading and these may endanger the safety of a building. Non-structural cracks which are due to moisture changes,thermal variations, elastic deformation, creep, chemical reaction, foundation movement and settlement of soil,vegetation, etc. Non-structural cracks are mostly due to internally induced stresses in building materials and thesegenerally do not directly result in structural weakening. In course of time however, sometimes these cracks may,because of penetration of moisture through cracks or weathering action, result in corrosion of reinforcement and thusmay render the structure unsafe.Therefore a study was conducted on cracks and repairing by bacteria based healing wasinvestigated.
