Publication detail

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.

Original Title

Stability of Basalt-fibres reinforcement in Alkali-activated systems

Type

journal article in Web of Science

Language

English

Original Abstract

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

Keywords

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

Authors

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

Released

3. 2. 2020

Publisher

Institute of Metals and Technology

Location

Ljubljana, Slovenia

ISBN

1580-2949

Periodical

Materiali in tehnologije

Year of study

54

Number

2

State

Republic of Slovenia

Pages from

203

Pages to

210

Pages count

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"
}