Hardening kinetics investigation of alkali-activated binder by small amplitude oscillatory rheometry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F17%3A43931851" target="_blank" >RIV/49777513:23640/17:43931851 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/790/1/012029" target="_blank" >http://dx.doi.org/10.1088/1742-6596/790/1/012029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/790/1/012029" target="_blank" >10.1088/1742-6596/790/1/012029</a>

Result language

angličtina

Original language name

Hardening kinetics investigation of alkali-activated binder by small amplitude oscillatory rheometry

Original language description

In this study, the rheological behavior of geopolymeric inorganic binder was determined. This binder was synthesized by alkaline activation of mixture, comprising calcined claystone powder and milled blast furnace slag. As an alkaline activator of hardening process, the potassium silicate solution was used. For the investigation of hardening kinetics, the strain controlled small amplitude oscillatory rheometry was used with strain of 0.01%. The reproducibility and versatility of this method is demonstrated for determination of hardening process evolution. The changes of loss tangent shape were studied in this experiment and applied for determination of gelation time. All experiments were conducted at isothermal conditions in temperature range 27-70°C and parallel plate geometry. The results indicate that reaction kinetics is directly depending on temperature. The hardening kinetics was mathematically described and these calculations were compared with self-contained experiment conducted at 2°C. This experiment is described in details and the results of gelation time measurements confirmed calculated data.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/LO1402" target="_blank" >LO1402: CENTEM+</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Journal of Physics: Conference Series

ISBN

—

ISSN

1742-6588

e-ISSN

neuvedeno

Number of pages

4

Pages from-to

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Publisher name

Int Sci Advisory Board; Int Organizing Comm; IGREX Engn Serv Ltd

Place of publication

Lillafured, HUNGARY

Event location

Miskolc, Hungary

Event date

Oct 5, 2015

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000400612300029