Publication detail

Evaluation of Aggressive Chemicals Effect on CIPP Liners

MAJEROVÁ, J. HODUL, J. DROCHYTKA, R. KEPRDOVÁ, Š.

Original Title

Evaluation of Aggressive Chemicals Effect on CIPP Liners

Type

conference paper

Language

English

Original Abstract

CIPP renovation methods are often used for renovation of sewers and water mains. They can also be used for renovation of gas and product pipelines. However, the presence of chemicals in these pipelines cannot be excluded. For this reason, the ability of CIPP liners to resist chemicals should be examined. This paper deals with problematics of influence of chemicals (acids and bases) on CIPP liners. Visual changes can be observed using an optical microscope. Structural changes are evident from the results of short-term bending tests. During the visual observation, no visible changes in the structure of the samples were found. Exposure of the samples to the 20% hydrochloric acid caused damage of the polyurethane membrane. The polypropylene membrane remained unchanged. The decrease in flexural modulus was most noticeable with samples stored in 10% ammonium hydroxide.

Keywords

CIPP, sewers, testing, chemicals, optical microscope, short-term bending properties

Authors

MAJEROVÁ, J.; HODUL, J.; DROCHYTKA, R.; KEPRDOVÁ, Š.

Released

20. 10. 2020

Publisher

Trans Tech Publications Ltd.

Location

Switzerland

ISBN

9783035736533

Book

Rehabilitation and Reconstruction of Buildings III

Edition

Michaela Kostelecká

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

State

Swiss Confederation

Pages from

92

Pages to

97

Pages count

6

URL

https://www.scientific.net/KEM.868.92

BibTex

@inproceedings{BUT165672,
  author="Jana {Majerová} and Jakub {Hodul} and Rostislav {Drochytka} and Šárka {Keprdová}",
  title="Evaluation of Aggressive Chemicals Effect on CIPP Liners",
  booktitle="Rehabilitation and Reconstruction of Buildings III",
  year="2020",
  series="Michaela Kostelecká",
  journal="Key Engineering Materials (print)",
  pages="92--97",
  publisher="Trans Tech Publications Ltd.",
  address="Switzerland",
  doi="10.4028/www.scientific.net/KEM.868.92",
  isbn="9783035736533",
  issn="1013-9826",
  url="https://www.scientific.net/KEM.868.92"
}