Title : COMBINED USE OF NON-DESTRUCTIVE TESTING AND FACTOR BASED SERVICE LIFE ANALYSIS FOR ASSESSING THE STATE-OFHEALTH OF CONCRETE STRUCTURES
Authors : Sreejith Nanukuttan(1), Colleen Green(1), Pejwak Pouryahya(1), Bryan Magee(1), Muhammed Basheer(1), Jonathon Backus(1) and Luping Tang
Publication : 13th – 16th February 2013
Volume :
Pages : 10-Jan
Price : 250
Abstract : There are several sophisticated methods for assessing the durability of concrete structures. Each of these methods identifies a specific aspect or a property pertaining to the structure such as chloride diffusivity, crack width and rate of corrosion of rebar. Using limiting values for these properties it is possible to predict the state-of-health of the structure. However, such predictions are limited for the finite area where the property was determined. In this paper the authors present an assessment method which combines the information gathered using nondestructive tests with the help of a factor based service life method. This approach allows users to interpret data for a much large area of the structure, thereby avoiding the scale effect. The proposed method can be expanded to structures in any exposure environment. In this paper the method is validated for a structure exposed to a marine chloride environment