Publication detail

Lightweight aggregate produced with cold-bonding of fly ash and binder

ČERNÝ, V. MELICHAR, J. KOCIÁNOVÁ, M.

Original Title

Lightweight aggregate produced with cold-bonding of fly ash and binder

Type

conference paper

Language

English

Original Abstract

Main object of this paper are results of ash usage in order to create artificial aggregates. Ashes are mineral residue of coal burning in thermal power stations. Fly ashes (high temperature ashes) are highly used in practice as supplement of cement and silicate components of silica materials. Fluidized bed combustion (FBC) ashes are not used such great scale. They can be used for restoration, mounds or for example also for production of ash autoclaved aerated concrete. [1] Production of artificial aggregate from sintered ash is possible mainly because of the fly ashes. [2] Focus of this paper is to compare various types of ashes for lightweight aggregate produced with cold-bonding. Apart from the fly ashes and FBC ashes are also tested bottom ashes from FBC technology. From the results could be assumed, that bottom ashes compared to their granularity could be used only very hardly. Fly ashes splendidly react with cement and reach higher strengths. But they need more than 10 % of binder in order to reach quality results. FBC ashes better cooperate with quicklime, but in order to reach suitable parameters they need smaller portion of binder.

Keywords

Artificial aggregate, Binder, By-product, Cement, Fly ash, Power plant, Quicklime

Authors

ČERNÝ, V.; MELICHAR, J.; KOCIÁNOVÁ, M.

Released

10. 10. 2017

Publisher

Trans tech publications Ltd

Location

Switzerland

ISBN

978-3-0357-1157-8

Book

Binders, Materials and Technologies in Modern Construction III

Edition

2017

Edition number

908

ISBN

0255-5476

Periodical

Materials Science Forum

Number

908

State

Swiss Confederation

Pages from

94

Pages to

99

Pages count

6

BibTex

@inproceedings{BUT143772,
  author="Vít {Černý} and Jindřich {Melichar} and Magdaléna {Michalčíková}",
  title="Lightweight aggregate produced with cold-bonding of fly ash and binder",
  booktitle="Binders, Materials and Technologies in Modern Construction III",
  year="2017",
  series="2017",
  journal="Materials Science Forum",
  number="908",
  pages="94--99",
  publisher="Trans tech publications Ltd",
  address="Switzerland",
  doi="10.4028/www.scientific.net/MSF.908.94
",
  isbn="978-3-0357-1157-8",
  issn="0255-5476"
}