Publication detail

Synthesis of tobermorite structure with non-traditional silica components

ČERNÝ, V. FLEISCHHACKER, J. MICHALČÍKOVÁ, M. DROCHYTKA, R.

Original Title

Synthesis of tobermorite structure with non-traditional silica components

Type

journal article in Scopus

Language

English

Original Abstract

The main aim of the article is research of kinetics of creation of calcium silicate hydrate (CSH) and calcium aluminate hydrate (CAH) phases in the autoclaved aerated concrete in dependence on type of raw materials. Regarding materials, this will be unique combinations of lime with fly ash, quartz sand or silica fume. The aim will be to prove the influence of ratio of individual types of materials on the CSH phase to determine optimal combinations of raw materials. The research focuses first on detailed analysis of the used materials. Next focus is kinetics of the creation of microstructures of silicate phases under ideal conditions of small-sized autoclave reactors (250 ml, 190 °C, 1.3 MPa). The produced samples are further analysed using of x-ray diffraction (XRD) and scanning electron microscopy (SEM) for qualitative valuation of created microcrystalline phases. The results show that the most suitable non-traditional silica component is ash from coal combustion. The optimal combination of amorphous and crystalline silicon in combination with Al2O3 provided the highest proportion of synthesized tobermorite even in more economical autoclaving variants.

Keywords

Autoclaved aerated concrete; tobermorite; calcium sulfate; fly ash; silica fume

Authors

ČERNÝ, V.; FLEISCHHACKER, J.; MICHALČÍKOVÁ, M.; DROCHYTKA, R.

Released

3. 10. 2018

Publisher

International Journal on Advanced Science, Engineering and Information Technology,

Location

Indonesia

ISBN

2088-5334

Periodical

International Journal on Advanced Science, Engineering and Information Technology

Year of study

Volume 8

Number

Issue 3

State

Republic of Indonesia

Pages from

904

Pages to

910

Pages count

6

URL

https://www.scopus.com/record/display.uri?eid=2-s2.0-85049244437&origin=resultslist&sort=plf-f&src=s&st1=Synthesis+of+Tobermorite+Structure+with+Non-traditional+Silica+Components&st2=&sid=7eee61b8944082d4dc0c75afdabaa235&sot=b&sdt=b&sl=88&s=TITLE-ABS-KEY%28Synthesis+of+Tobermorite+Structure+with+Non-traditional+Silica+Components%29&relpos=0&citeCnt=0&searchTerm

BibTex

@article{BUT150263,
  author="Vít {Černý} and Ján {Fleischhacker} and Magdaléna {Michalčíková} and Rostislav {Drochytka}",
  title="Synthesis of tobermorite structure with non-traditional silica components",
  journal="International Journal on Advanced Science, Engineering and Information Technology",
  year="2018",
  volume="Volume 8",
  number="Issue 3",
  pages="904--910",
  doi="10.18517/ijaseit.8.3.5853",
  issn="2088-5334",
  url="https://www.scopus.com/record/display.uri?eid=2-s2.0-85049244437&origin=resultslist&sort=plf-f&src=s&st1=Synthesis+of+Tobermorite+Structure+with+Non-traditional+Silica+Components&st2=&sid=7eee61b8944082d4dc0c75afdabaa235&sot=b&sdt=b&sl=88&s=TITLE-ABS-KEY%28Synthesis+of+Tobermorite+Structure+with+Non-traditional+Silica+Components%29&relpos=0&citeCnt=0&searchTerm"
}