Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

Evaluation of Fatigue Damage of Concrete using Impact Echo Method

Char Ai, Tan (2004) Evaluation of Fatigue Damage of Concrete using Impact Echo Method. Universiti Teknologi Petronas. (Unpublished)

[img] PDF
Download (1506Kb)


The impact echo technique is traditionally used to determine position of defects within concrete structures. Impact echo technique is non-destructive, non-intrusive, and cost and time efficient. In this paper, application of impact echo in assessing crack development n concrete structures subjected to cyclic load is discussed. Research work is carried out by performing impact echo test on concrete plain beam 150mm x 150mm x 750mm subjected to cyclic load. Mechanical stress wave is generated by striking the concrete surface with 7mm diameter steel ball. The reflected stress wave is then detected by accelerometer and displayed result in the form of amplitude-frequency waveform on the screen of an oscilloscope. The waveform recorded at certain interval of cyclic loading is analysed to estimate the crack development in concrete. It is found that impact echo result has a strong correlation with the concrete fatigue life. There is also a great potential of using Impact echo method to predict the remaining service life of a concrete structure subjected to cyclic load. However many parameters can affect the accuracy of impact echo result, more research need to be done and many conditions need to be taken into consideration when implementing this method in predicting the remaining service life of concrete structure.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Structures, materials and construction
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:55
Last Modified: 25 Jan 2017 09:46
URI: http://utpedia.utp.edu.my/id/eprint/7848

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...