Detail publikace

Study of the Interaction of Cement-Based Materials for 3D Printing with Fly Ash and Superabsorbent Polymers

MELICHAR, J. ŽIŽKOVÁ, N. BROŽOVSKÝ, J. MÉSZÁROSOVÁ, L. HERMANN, R.

Originální název

Study of the Interaction of Cement-Based Materials for 3D Printing with Fly Ash and Superabsorbent Polymers

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The use of superabsorbent polymers (SAP) in construction is a relatively new trend, and not a completely explored area. However, SAP itself has been on the market for over 80 years. SAPs have a cross-linked three-dimensional structure, thanks to which they have the unique ability to absorb extreme amounts of water, up to a hundred times their weight. By using this property, it is possible to prevent water losses, which is important at the time of maturation in cementitious building materials. When there is a lack of water needed for hydration processes, the physical and mechanical properties deteriorate. The subject of this article is to determine the possible positive effect of the presence of SAP in the cement matrix in order to optimize the parameters of silicate composites for 3D printing. For this purpose, a special methodology was compiled consisting of tests through which it is possible to assess the suitability of the tested mixtures for 3D printing. This methodology consists of determining consistency, volumetric weight, ultrasonic analysis, buildability, X-ray diffraction, flexural tensile and compressive strength. For determining of buildability and ultrasonic analysis new methodologies were created in this research in order to be suitable for the 3D printing materials. Last but not least, efforts are also being made to increase the incorporation of secondary raw material (fly ash) in order to reduce the environmental impact of industrial production and, conversely, to increase its sustainability while maintaining or improving the mechanical–physical parameters of building materials. From the results presented in this paper it is apparent, that created methodology is efficient for determining properties of 3D printable mixtures. SAPs also significantly influenced properties of these mixtures. Mainly buildability and flexural tensile strength (by up to 30%) were increased and volumetric weight was decreased (by up to 5%).

Klíčová slova

superabsorbent polymers; fly ash; 3D concrete printing

Autoři

MELICHAR, J.; ŽIŽKOVÁ, N.; BROŽOVSKÝ, J.; MÉSZÁROSOVÁ, L.; HERMANN, R.

Vydáno

17. 11. 2022

Nakladatel

MDPI

Místo

Switzerland

ISSN

2075-5309

Periodikum

Buildings

Ročník

12

Číslo

11

Stát

Švýcarská konfederace

Strany od

1

Strany do

19

Strany počet

19

URL

https://www.mdpi.com/2075-5309/12/11/2008

Plný text v Digitální knihovně

http://hdl.handle.net/11012/208568

BibTex

@article{BUT180097,
  author="Jindřich {Melichar} and Nikol {Žižková} and Jiří {Brožovský} and Lenka {Mészárosová} and Radek {Hermann}",
  title="Study of the Interaction of Cement-Based Materials for 3D Printing with Fly Ash and Superabsorbent Polymers",
  journal="Buildings",
  year="2022",
  volume="12",
  number="11",
  pages="19",
  doi="10.3390/buildings12112008",
  issn="2075-5309",
  url="https://www.mdpi.com/2075-5309/12/11/2008"
}