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Application of a clay-slag geopolymer matrix for repairing damaged concrete: Laboratory and industrial-scale experiments
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SYSNO ASEP 0479449 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Application of a clay-slag geopolymer matrix for repairing damaged concrete: Laboratory and industrial-scale experiments Tvůrce(i) Perná, Ivana (USMH-B) RID, ORCID, SAI
Hanzlíček, Tomáš (USMH-B) RID
Boura, P. (CZ)
Lučaník, A. (CZ)Zdroj.dok. Materials Testing : Materials and Components Technology and Application. - : Walter de Gruyter - ISSN 0025-5300
Roč. 59, č. 10 (2017), s. 929-937Poč.str. 9 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova blast-furnace slag ; geopolymer ; scanning electron microscopy (SEM) ; damaged concrete repair ; long-term monitoring Vědní obor RIV JJ - Ostatní materiály Obor OECD Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics Institucionální podpora USMH-B - RVO:67985891 UT WOS 000415695400015 EID SCOPUS 85040812007 DOI 10.3139/120.111090 Anotace Blast-furnace slag, a remnant of the old iron production, was used for a preparation of a clay-slag geopolymer which was applied to old concrete surface. An interface investigation by scan electron microscopy (SEM) confirmed the hypothesis that a clay-slag geopolymer can be used for a repair of concrete. Based on the laboratory experiments, a highly damaged and contaminated old concrete floor with potholes ranging from 2 mm to 20 cm, located in metal manufacturing industrial plant, has been repaired overnight by a clay-slag geopolymer matrix (1:0.5) filled with sand and pebbles (the total content of 70 wt.-%). This industrial-scale experiment has proven that geopolymers are suitable for damaged concrete repair and the daily rush in heavy industrial conditions has confirmed the resistance and surface hardness of the geopolymer mixture used. The article documents the original state of the floor, its state after 8 hours and also two and four years later. Pracoviště Ústav struktury a mechaniky hornin Kontakt Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Rok sběru 2018
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