Publication result detail

DEGREE OF DEGENERATION EVALUATED BY NON DESTRUCTIVE TESTING METHODS

ŠTEFKOVÁ, D.; TIMČAKOVÁ, K.

Original Title

DEGREE OF DEGENERATION EVALUATED BY NON DESTRUCTIVE TESTING METHODS

English Title

DEGREE OF DEGENERATION EVALUATED BY NON DESTRUCTIVE TESTING METHODS

Type

Paper in proceedings (conference paper)

Original Abstract

This paper reports the results of measurements by Impact-echo method on two applications in civil engineering. The results are obtained in the laboratory during process in the degradation of concrete samples by corrosion caused by the action of chlorides and the degradation of composite materials based on cement by high-temperature (in the temperatures range from 200 °C to 1200 °C). The results of non-destructive testing of such samples by acoustic methods confirmed the differences in the structure of mortar specimens. A significant decrease of the absorbed frequencies was observed depending on the temperature. A shift of the dominant frequency to a lower value is a key indication of the presence of the flaw.

English abstract

This paper reports the results of measurements by Impact-echo method on two applications in civil engineering. The results are obtained in the laboratory during process in the degradation of concrete samples by corrosion caused by the action of chlorides and the degradation of composite materials based on cement by high-temperature (in the temperatures range from 200 °C to 1200 °C). The results of non-destructive testing of such samples by acoustic methods confirmed the differences in the structure of mortar specimens. A significant decrease of the absorbed frequencies was observed depending on the temperature. A shift of the dominant frequency to a lower value is a key indication of the presence of the flaw.

Keywords

Impact-echo, acoustic emission, high temperature degradation, mortar, frequencies

Key words in English

Impact-echo, acoustic emission, high temperature degradation, mortar, frequencies

Authors

ŠTEFKOVÁ, D.; TIMČAKOVÁ, K.

RIV year

2016

Released

01.12.2015

Location

Brno

ISBN

978-80-214-5315-9

Book

13 th. Workshop NDT 2015, NON-DESTRUCTIVE TESTING IN ENGINEERING PRACTICE

Pages from

82

Pages to

89

Pages count

7

BibTex

@inproceedings{BUT121732,
  author="Daniela {Kysilková} and Kristýna {Timčaková}",
  title="DEGREE OF DEGENERATION EVALUATED BY NON DESTRUCTIVE TESTING METHODS",
  booktitle="13 th. Workshop NDT 2015, NON-DESTRUCTIVE TESTING IN ENGINEERING PRACTICE",
  year="2015",
  number="1",
  pages="82--89",
  address="Brno",
  isbn="978-80-214-5315-9"
}