Nanoparticle Injection into Concrete Using Electromigration

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00222285" target="_blank" >RIV/68407700:21110/14:00222285 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1054.6" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMR.1054.6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1054.6" target="_blank" >10.4028/www.scientific.net/AMR.1054.6</a>

Result language

angličtina

Original language name

Nanoparticle Injection into Concrete Using Electromigration

Original language description

This paper aims at investigation of possibilities and effectiveness of chloride extraction from concrete and nanoparticle injection into existing reinforced concrete structures by means of electromigration technique. Concrete specimens are exposed to accelerated chloride penetration tests in order to simulate a natural chloride exposure. The developed chloride profile is removed by electroextraction by reversing the polarity in the testing chamber. In a similar manner, concrete specimens are injected with different concentrations of colloidal nanosilica particles. It was shown in the paper that chlorides can be effectively extracted from the concrete using small voltage lasting for several days. Higher concentration solutions of nanosilica can also beeffectively transported into concrete via the electric field. Once injected nanosilica can act as microstructure densifier and further reduce chloride penetration as demonstrated by decreased diffusivity of the treated concrete.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

JN - Civil engineering

OECD FORD branch

—

Project

<a href="/en/project/GA14-19561S" target="_blank" >GA14-19561S: Cementitious composites in severe environmental conditions</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Article name in the collection

Special Concrete and Composites 2014

ISBN

978-3-03835-317-1

ISSN

1022-6680

e-ISSN

—

Number of pages

5

Pages from-to

6-10

Publisher name

Trans Tech Publications

Place of publication

Uetikon-Zurich

Event location

Skalský Dvůr

Event date

Oct 16, 2014

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000348436200002