Study of Fine-Grained Cementitious Composites in Solidification Phase Using Acoustic Testing Technique

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F20%3APU136389" target="_blank" >RIV/00216305:26110/20:PU136389 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.897.111" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMM.897.111</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.897.111" target="_blank" >10.4028/www.scientific.net/AMM.897.111</a>

Result language

angličtina

Original language name

Study of Fine-Grained Cementitious Composites in Solidification Phase Using Acoustic Testing Technique

Original language description

The paper deals with experimental analysis, which is focused on the use of acoustic measurement during the solidification process. As a material for monitoring was chosen fine-grained cementitious composites in the laboratory environment. For this purpose, a measuring device working on the principle of mechanical waves passing through the material was designed, assembled and verified. The experiment was conducted on cement pastes prepared from CEM I 42.5 R Portland cement with two different water coefficients (w/c = 0.40 and w/c = 0.33). The differences in the wave propagation in cement pastes were investigated. Simultaneously with this experiment, the monitoring and the saving records of the internal temperature was conducted. The results show the time of „critical changes" in the internal structure of the material can be determined. These changes are probably related to the quality of the particle’s bonds in the inner material structure, which is reflected in the propagation of mechanical waves. Overall, it is shown these experiments could be used to expand the understanding of the various processes occurring during early hydration of cement, and the application of these results to field situations (in the future) could lead to the other development of, non-destructive (and nonintrusive) monitoring techniques.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

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

Article name in the collection

Applied Mechanics and Materials Vol. 897

ISBN

978-3-0357-1472-2

ISSN

2297-8941

e-ISSN

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Number of pages

6

Pages from-to

111-116

Publisher name

Trans Tech Publications Ltd

Place of publication

Switzerland

Event location

Jeju Si, Jeju Island

Event date

Nov 15, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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