International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 08 Issue: 05 | May 2021
p-ISSN: 2395-0072
www.irjet.net
Evaluating Structural Integrity of Concrete Structures by using NonDestructive -Testing Shabnum Masood 1, Dr.Sanjay Sharma2, Er.Shabina Masoodi3, Er.Irtiza khurshid4 1B.E
Student, Civil Engineering Department, SSM College of Engineering, Kashmir, India 2Head of Civil Engineering Department, NITTTR Chandigarh, India 3Head of Civil Engineering Department, SSM College of Engineering, Kashmir, India 4Assistant Professor, Civil Engineering Department, SSM College of Engineering, Kashmir, India -------------------------------------------------------------------------***-----------------------------------------------------------------------Abstract concrete being a high durable construction Material Shows some signs of deterioration in its whole Life span. Damage may occur from a variety of causes like accidental overloading, foundation settlement, poor Workmanship And corrosion of concrete cover which Leads to cracking and Spalling of concrete cover. These Deteriorations effect the structural integrity of a structure which leads a way towards structural failure. Thus concrete Structures that are in use need to be Specifically inspected to determine the extent of damage and Integrity of such Structure’s. Non –Destructive Testing is one of the technique that can be used for Evaluating the structural integrity of such concrete structures that are in use. With the help of this technique we can rule out the various damages present in our structures. By this technique we can find the structural Stability of our existing structures. This technique helps us in assessing The condition of our structure’s which gives an idea about What steps should be taken to save a structure from any kind of failure in future. Without destroying whole structure NDT gives us the result whether the structure is stable or not.
Fig 1 . Residential houses of sector 30
Fig 2 . Conducting Non-destructive testing
Key words; Concrete, Non Destructive testing, Structural failure, Deterioration, stability, repairing etc. 1. Introduction The objective of the investigation was to carry out Nondestructive testing on single storey houses in sector 30 0f Chandigarh so as to assess the present strength of R.C.C members and various masonry structures.
2. SCOPE OF THE STUDY The aim of the investigation was;
To identify the cause of damage and source Of problem. To determine the extent of damage . To assess the safety and serviceability of the structure. To provide recommendations on remedial And preventive measures.
Non - destructive testing of various members along with the condition survey was carried out to assess integrity of these residential houses.
3. METHODOLOGY
Investigations were carried out to locate cracks, leakage points, concrete quality, corrosion in reinforcing bars, carbonation of concrete and ingress of salts in concrete. The strength , integrity of concrete ,presence of voids , cracks or other imperfections were found by using various Non-destructive tests like rebound hammer test, Ultra sonic pulse velocity test etc. The visual Examination was carried out to find out dampness and other defects in the houses.
Visual inspection is the starting point of any investigation. Cracks, rust staining and spalling are the most obvious defects which can be identified by visual inspection. Often the location of these can give a good indication of the cause of the problem. Visual defects may be related to poor workmanship or material deterioration.
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