Publication detail

Ternary binder made of CFBC fly ash, conventional fly ash, and calcium hydroxide: Phase and strength evolution

Hlavacek, P Sulc, R Smilauer, V Rossler, C Snop, R

Original Title

Ternary binder made of CFBC fly ash, conventional fly ash, and calcium hydroxide: Phase and strength evolution

Type

journal article in Web of Science

Language

English

Original Abstract

Coal combustion products present a source of aluminosilicate materials for further utilization. The ternary binder studied here is such an example, consisting of circulating fluidized bed combustion (CFBC) fly ash, conventional fly ash and Ca(OH)(2) activator. The paste yields a compressive strength of 32 MPa after 28 days of standard sealed curing. Volumetric evolution of crystalline and amorphous phases during hydration is quantified using XRD analysis, differential thermal gravimetry, porosimetry and electron microscopy. A micromechanical model is applied to interpret the evolution of compressive strength due to the growing proportions of C-S-H and ettringite in the system. This opens the way for further optimization and utilization of this ternary binder. (C) 2018 Elsevier Ltd. All rights reserved.

Keywords

CFBC fly ashPhase evolutionXRDDTGMechanical propertiesMicromechanical simulations

Authors

Hlavacek, P; Sulc, R ; Smilauer, V; Rossler, C; Snop, R

Released

28. 12. 2018

Publisher

CEMENT & CONCRETE COMPOSITES

Location

England

ISBN

0958-9465

Periodical

CEMENT & CONCRETE COMPOSITES

Year of study

90

Number

90

State

United Kingdom of Great Britain and Northern Ireland

Pages from

100

Pages to

107

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S0958946518300957?via%3Dihub

BibTex

@article{BUT183223,
  author="Hlavacek, P and Sulc, R and Smilauer, V and Rossler, C and Snop, R",
  title="Ternary binder made of CFBC fly ash, conventional fly ash, and calcium hydroxide: Phase and strength evolution",
  journal="CEMENT & CONCRETE COMPOSITES",
  year="2018",
  volume="90",
  number="90",
  pages="100--107",
  doi="10.1016/j.cemconcomp.2017.09.020",
  issn="0958-9465",
  url="https://www.sciencedirect.com/science/article/pii/S0958946518300957?via%3Dihub"
}