Influence of Physical and Chemical Stress on the Properties of CIPP Pipes Based on Vinyl Ester

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU145633" target="_blank" >RIV/00216305:26110/22:PU145633 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/KEM.932.237.pdf" target="_blank" >https://www.scientific.net/KEM.932.237.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/p-vpg85p" target="_blank" >10.4028/p-vpg85p</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Physical and Chemical Stress on the Properties of CIPP Pipes Based on Vinyl Ester

Popis výsledku v původním jazyce

Cured-in-place pipe (CIPP) is one of the trenchless sewer rehabilitation methods for repairing sewer pipe using different types of resin, curing technology and reinforced polymer fiber. In the research described in this article, the chemical and temperature resistance of CIPP pipes based on vinyl ester resin, cured with hot water, were tested. The specimens of the CIPP pipes were exposed to a chemically aggressive environment and an elevated temperature, namely 20% sulfuric acid (pH = 1) and a temperature of 50°C. The samples were tested every month for short-term flexural properties as well as hardness. Changes of the flexural properties and hardness were compared with reference samples that were stored under laboratory conditions (23±0,5°C, relative humidity 50±10%). It was found out that the applied aggressive environment does not have a negative impact on the mechanical properties of the CIPP pipes based on vinyl ester resin even after long-term exposure. Furthermore, the influence of the aggressive environment on the microstructure of CIPP samples was monitored by digital optical microscopy.

Název v anglickém jazyce

Influence of Physical and Chemical Stress on the Properties of CIPP Pipes Based on Vinyl Ester

Popis výsledku anglicky

Cured-in-place pipe (CIPP) is one of the trenchless sewer rehabilitation methods for repairing sewer pipe using different types of resin, curing technology and reinforced polymer fiber. In the research described in this article, the chemical and temperature resistance of CIPP pipes based on vinyl ester resin, cured with hot water, were tested. The specimens of the CIPP pipes were exposed to a chemically aggressive environment and an elevated temperature, namely 20% sulfuric acid (pH = 1) and a temperature of 50°C. The samples were tested every month for short-term flexural properties as well as hardness. Changes of the flexural properties and hardness were compared with reference samples that were stored under laboratory conditions (23±0,5°C, relative humidity 50±10%). It was found out that the applied aggressive environment does not have a negative impact on the mechanical properties of the CIPP pipes based on vinyl ester resin even after long-term exposure. Furthermore, the influence of the aggressive environment on the microstructure of CIPP samples was monitored by digital optical microscopy.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/FW01010197" target="_blank" >FW01010197: Vývoj a výzkum nových progresivních materiálů pro sanaci inženýrských sítí s využitím druhotných surovin</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Materials and Technologies of Modern Production

ISBN

978-3-0364-1168-2

ISSN

1662-9795

e-ISSN

—

Počet stran výsledku

7

Strana od-do

237-243

Název nakladatele

Trans Tech Publications Ltd, Switzerland

Místo vydání

neuveden

Místo konání akce

Praha

Datum konání akce

11. 11. 2021

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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