Development of an inline water mains inspection technology: Detection of acidic deterioration in cement-based water pipes with ultrasonic pulse-echo technique

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    Abstract

    The condition of a great part of the drinking water network in the Netherlands is unknown. In order to efficiently identify the assets that are close to their lifetime expectancy, a non-destructive evaluation method was developed based on ultrasonic testing. The water network is composed mostly by polyvinyl chloride (~50%) and cement-based (~30%) pipes. In this work, the degradation due to acidic attack in cement-based drinking water pipes was investigated. Mortar blocks were manufactured and degraded in a hydrochloric acid solution. The amount of degradation was derived by measuring the overall ultrasonic pulse velocity in the specimen. Moreover, two factors played a vital role in the detection of acid induced damage: the high damping of the piezoelectric element, resulting in low resonance and the processing algorithm. A 0.5 MHz central frequency transducer is found to be the most suitable to detect acidic damage in cement-based structures.
    Original languageEnglish
    Title of host publicationProceedings of 2016 IEEE International Ultrasonics Symposium (IUS)
    PublisherIEEE
    Number of pages4
    ISBN (Print)978-1-4673-9897-8
    DOIs
    Publication statusPublished - 18 Sep 2016
    EventIEEE International Ultrasonics Symposium, IUS 2016 - Tours, France, Tours, France
    Duration: 18 Sep 201621 Sep 2016

    Conference

    ConferenceIEEE International Ultrasonics Symposium, IUS 2016
    Abbreviated titleIUS
    CountryFrance
    CityTours
    Period18/09/1621/09/16
    Other18-09-2016 - 21-09-2016

    Keywords

    • METIS-320991
    • IR-103478

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