Detail publikace

INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER

ROVNANÍK, P.

Originální název

INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Geopolymer material based on coal fly ash from the high temperature combustion activated with alkali silicate is a very cheap and suitable material for temporary and non-load-bearing structures. For the purposes of emergency application, such as closing barriers, it is necessary to have dry mixtures ready for mixing with water. However, the utilization of dried sodium silicate activator instead of an aqueous solution considerably delays its setting. The application of C12A7 accelerates the setting of alkali activated fly ash, but it also influences its mechanical properties. Early-age strengths are increased, the long term strengths are, however, deteriorated in comparison with the pure material without C12A7. Microstructural changes are described by means of mercury intrusion porosimetry, SEM, XRD and FTIR analysis.

Klíčová slova

fly ash, alkali activation, setting accelerator, mayenite

Autoři

ROVNANÍK, P.

Rok RIV

2010

Vydáno

1. 12. 2010

Nakladatel

VŠCHT

Místo

Praha

ISSN

0862-5468

Periodikum

Ceramics-Silikáty

Ročník

54

Číslo

4

Stát

Česká republika

Strany od

362

Strany do

367

Strany počet

6

BibTex

@article{BUT50101,
  author="Pavel {Rovnaník}",
  title="INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER",
  journal="Ceramics-Silikáty",
  year="2010",
  volume="54",
  number="4",
  pages="362--367",
  issn="0862-5468"
}