Publication detail

Properties of cement pastes with zeolite during early stage of hydration

BOHÁČ, M. KUBÁTOVÁ, D. NEČAS, R. ZEZULOVÁ, A. RYBOVÁ, A. NOVOTNÝ, R.

Original Title

Properties of cement pastes with zeolite during early stage of hydration

Type

conference paper

Language

English

Original Abstract

Properties of cement pastes with various replacement levels of natural zeolite were tested by isothermal calorimetry and rotational rheology. Zeolite from the Eastern Slovakia region was used for tests. Kinetics of exothermic reaction during early stage of hydration were monitored by calorimetry. The role of different replacement level of zeolite on main rheological parameters is discussed in the paper. The onset point of formation of C-S-H products and the main calorimetric peak move to earlier times with increased zeolite content. Zeolite causes acceleration of hydration before the heat flow peak time and the following deceleration proportionally to its content. Zeolite in cement promotes the AFt formation, which increases the elastic response of fresh paste at the beginning of hydration. Trends of G’ and phase angle show that zeolite accelerates the hydration of C3S and early C-S-H formation.

Keywords

cement, zeolite, hydration, calorimetry, rheology

Authors

BOHÁČ, M.; KUBÁTOVÁ, D.; NEČAS, R.; ZEZULOVÁ, A.; RYBOVÁ, A.; NOVOTNÝ, R.

Released

4. 8. 2016

Publisher

Elsevier

ISBN

1877-7058

Periodical

Procedia Engineering

Year of study

151

Number

1

State

Kingdom of the Netherlands

Pages from

2

Pages to

9

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S1877705816317374

Full text in the Digital Library

http://hdl.handle.net/11012/204201

BibTex

@inproceedings{BUT127113,
  author="Martin {Boháč} and Dana {Kubátová} and Radovan {Nečas} and Anežka {Zezulová} and Alexandra {Rybová} and Radoslav {Novotný}",
  title="Properties of cement pastes with zeolite during early stage of hydration",
  booktitle="Procedia Engineering",
  year="2016",
  journal="Procedia Engineering",
  volume="151",
  number="1",
  pages="2--9",
  publisher="Elsevier",
  doi="10.1016/j.proeng.2016.07.349",
  issn="1877-7058",
  url="https://www.sciencedirect.com/science/article/pii/S1877705816317374"
}