Detail publikace

Efect of Chemical Aggressive Media on the Flexural Properties of Cured-In-Place Pipes Supported by Microstructure Observation and Acoustic Emission

HODUL, J. MAJEROVÁ, J. DROCHYTKA, R. DVOŘÁK, R. TOPOLÁŘ, L. PAZDERA, L.

Originální název

Efect of Chemical Aggressive Media on the Flexural Properties of Cured-In-Place Pipes Supported by Microstructure Observation and Acoustic Emission

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The cured-in-place pipe (CIPP) method is currently the most frequently used approach for the renovation of piping without digging; this technology is suitable for pipes made from all types of material. The authors of this paper examined how chemical substances and increased temperature change samples of CIPP with vinyl-ester resin taken from a simulated installation. Changes were observed at several levels: visually via a digital optical microscope, through changes of short-term bending properties and by observation of the activity of the sample structure by means of acoustic emission (AE). Interdependencies among the observed parameters were examined, specifically, the cumulative number of hits (cnt)/deflection and flexural properties/mechanic wave velocity. The test results prove that after three weeks of immersion in a simulated aggressive environment that mirrors what may happen to CIPP in real conditions, short-term mechanical properties change. This is also proven by the results of the AE measurements. For clarity, the results include images from a digital optical microscope. In addition, this paper proves that CIPP samples have good resistance to the action of organic and inorganic acids and to increased temperatures. After three weeks of exposure to a temperature of 100 °C the CIPP flexural properties of the samples had even improved.

Klíčová slova

cured-in-place pipe (CIPP); chemical stress; microstructure; acoustic emission; flexural properties; thermal exposure

Autoři

HODUL, J.; MAJEROVÁ, J.; DROCHYTKA, R.; DVOŘÁK, R.; TOPOLÁŘ, L.; PAZDERA, L.

Vydáno

8. 7. 2020

Nakladatel

MDPI

ISSN

1996-1944

Periodikum

Materials

Ročník

13

Číslo

14

Stát

Švýcarská konfederace

Strany od

1

Strany do

17

Strany počet

17

URL

https://www.mdpi.com/1996-1944/13/14/3051

Plný text v Digitální knihovně

http://hdl.handle.net/11012/193400

BibTex

@article{BUT164483,
  author="Jakub {Hodul} and Jana {Majerová} and Rostislav {Drochytka} and Richard {Dvořák} and Libor {Topolář} and Luboš {Pazdera}",
  title="Efect of Chemical Aggressive Media on the Flexural Properties of Cured-In-Place Pipes Supported by
Microstructure Observation and Acoustic Emission",
  journal="Materials",
  year="2020",
  volume="13",
  number="14",
  pages="1--17",
  doi="10.3390/ma13143051",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/13/14/3051"
}