Detail publikace

Stability of Basalt-fibres reinforcement in Alkali-activated systems

HRUBÝ, P. KALINA, L. MÁSILKO, J. POŘÍZKA, J. ŠOUKAL, F. NEVRLÝ, V. KIMM, M. GRIES, T.

Originální název

Stability of Basalt-fibres reinforcement in Alkali-activated systems

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Basalt fibres (BFs) represent suitable reinforcing materials for cementitious materials because of their mechanical and thermal properties as well as good price-performance ratio. The crucial issue limiting the possibility of using these fibres in alkali-activated systems (AASs) is their stability and durability in a highly alkaline environment. There is a significant inconsistency across the publications in this case. Hence, the verification of the BFs stability in an environment simulating the AAS is fundamental for a successful implementation as a reinforcement in the matrix. Accelerated leaching tests in water-glass/NaOH and water-glass/Na2CO3 solutions with the evaluation of loss of mass, loss of tensile strength as well as chemical composition changes of the fibres and leaching solutions were made using various techniques, such as XPS, SEM or ICP-OES. A noticeable loss of mass as well as a deterioration of the tensile properties accompanied by a simultaneous dissolution of the fibres was observed. Additionally, the transition-zone properties were studied using a SEM-EDX in this study. Poor or no adhesion between the BFs and the AAS matrix was found

Klíčová slova

alkali-activated materials, alkali resistance, basalt fibres, accelerated leaching tests, durability testing

Autoři

HRUBÝ, P.; KALINA, L.; MÁSILKO, J.; POŘÍZKA, J.; ŠOUKAL, F.; NEVRLÝ, V.; KIMM, M.; GRIES, T.

Vydáno

3. 2. 2020

Nakladatel

Institute of Metals and Technology

Místo

Ljubljana, Slovenia

ISSN

1580-2949

Periodikum

Materiali in tehnologije

Ročník

54

Číslo

2

Stát

Slovinská republika

Strany od

203

Strany do

210

Strany počet

8

URL

http://mit.imt.si/izvodi/mit202/hruby.pdf

BibTex

@article{BUT163764,
  author="HRUBÝ, P. and KALINA, L. and MÁSILKO, J. and POŘÍZKA, J. and ŠOUKAL, F. and NEVRLÝ, V. and KIMM, M. and GRIES, T.",
  title="Stability of Basalt-fibres reinforcement in Alkali-activated systems",
  journal="Materiali in tehnologije",
  year="2020",
  volume="54",
  number="2",
  pages="203--210",
  doi="10.17222/mit.2019.151",
  issn="1580-2949",
  url="http://mit.imt.si/izvodi/mit202/hruby.pdf"
}