Detail publikace

Utilization of Fluidized Bed Combustion Fly Ash in the Design of Reuse Clay Soil in the Form of Self-Compacting Grouts

DROCHYTKA, R. MICHALČÍKOVÁ, M.

Originální název

Utilization of Fluidized Bed Combustion Fly Ash in the Design of Reuse Clay Soil in the Form of Self-Compacting Grouts

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This paper addresses the influence of fluidized bed combustion fly ash (FBCA) and further liquefying additives on the formation of structure and on the resulting properties of self-compacting grouts based on clay soil. In order to give the best account of the influence of individual input materials, tests were conducted on samples without the use of fluidized bed combustion fly ash. Clay soil (Cl) and cement were used as input materials, and fluidized bed combustion fly ash (10% and 30%) and a liquefying additive (sodium carbonate 0.1%) were used as an admixture. It has been experimentally determined that the use of 10% FBCA with clay soil is most suitable for achieving the optimal spillage parameter of self-compacting grout (class SF2 (660–750 mm) and class SF3 (760–850 mm)). It was also found that fluidized bed combustion fly ash and the liquefying additive have a significant influence on the formation of the structure of the self-compacting grout and, due to their presence, the compressive strength of the samples increased up to 0.5 MPa after seven days of hardening. The reaction between 0.1% of sodium carbonate and clay soil increased the electrokinetic potential, which reduced the viscosity of the self-compacting grout. Within the research work, the verification of the developed self-compacting grout in situ was also carried out.

Klíčová slova

clay soil; recycling; cement; self-compacting grout; fluidized bed combustion fly ash (FBCA); sodium carbonate

Autoři

DROCHYTKA, R.; MICHALČÍKOVÁ, M.

Vydáno

23. 4. 2020

Nakladatel

MDPI

Místo

Switzerland

ISSN

1996-1944

Periodikum

Materials

Ročník

13

Číslo

8

Stát

Švýcarská konfederace

Strany od

1

Strany do

15

Strany počet

15

URL

https://www.mdpi.com/1996-1944/13/8/1972

Plný text v Digitální knihovně

http://hdl.handle.net/11012/193398

BibTex

@article{BUT163689,
  author="Rostislav {Drochytka} and Magdaléna {Michalčíková}",
  title="Utilization of Fluidized Bed Combustion Fly Ash in the Design of Reuse Clay Soil in the Form of Self-Compacting Grouts",
  journal="Materials",
  year="2020",
  volume="13",
  number="8",
  pages="1--15",
  doi="10.3390/ma13081972",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/13/8/1972"
}