Novel Method for Monitoring of Concrete Structures by Means of Composite Tensometers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F16%3AN0000072" target="_blank" >RIV/26232511:_____/16:N0000072 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Novel Method for Monitoring of Concrete Structures by Means of Composite Tensometers

Original language description

The paper informs about an ongoing research on using carbon-based composite tensometers for monitoring of concrete structures under loading to prevent them to unexpected collapsing. For this reason it was necessary to design special fibre-cement elements able to transfer any mechanical impulse to an electrically-measured signal detected as a change in electrical resistance with computer outputs. Regarding previous research studies it was concluded that special fibre-cement composites are able to conduct electric current under specific conditions. This property is ensured by using of various kinds of carbon materials. Though carbon fibres are less conductive than metal fibres, composites with carbon fibres were evaluated as better current conductors than the composites with metal fibres. The level of electric conductivity is monitored by means of impedance measurement of designed samples. These composites could be used for a range of applications such as heating of trafficable surfaces or shielding of electro-magnetic fields. By means of various kinds of carbon particles and fibres it is possible to design cement composites with an ability to monitor changes in electrical conductivity of concretes. As a typical element for laboratory testing there were chosen a concrete column and a longitudinal beam, which were repeatedly subjected to load by simple pressure with continual monitoring of changes in electrical properties. In. The 9th International Concrete Conference 2016 Environment, Efficiency and Economic Challenges for Concret, Dundee, Great Britain, University of Dundee - Concrete Technology Univesity, ISBN 978-0-9573263-1-6

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

JN - Civil engineering

OECD FORD branch

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Project

<a href="/en/project/FR-TI3%2F485" target="_blank" >FR-TI3/485: Engineering structure state monitoring by the means of electrically conductive elements with modified cement matrix</a><br>

Continuities

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

Publication year

2016

Confidentiality

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