Publication detail

Nano-structured alkaline aluminosilicate binder by carbonate mineral addition

BODNÁROVÁ, L. GUZIY, S. HELA, R. KRIVENKO, P. VOYNIUK, G.

Original Title

Nano-structured alkaline aluminosilicate binder by carbonate mineral addition

English Title

Nano-structured alkaline aluminosilicate binder by carbonate mineral addition

Type

conference paper

Language

en

Original Abstract

The influence of CaCO3 on nano-structured, flowability and plastic strength of alkali activated alumonosilicate binders based on metakaolin for the range of oxide ratios in a structural formula of the Na2O∙Al2O3∙(2.5-4.5)SiO2∙(12-17)H2O + (5-15%)CaCO3 system was studied. The results of the study showed that the ratios of SiO2/Al2O3 – 3.8, H2O/Al2O3 – 13.75, and content of CaCO3 of 5% by mass were the most optimal ones from the point of view of meeting requirements for these binders to be used as base in protective coatings. The results of the study showed that process flowability of the binder with optimal ratios of oxides and 5 % by mass of additive 2 hours after preparation was by 5.4% lower, being by 5 times lower than that of the binder without the additive (CaCO3). The binder containing 5% CaCO3 by mass during 2 hours after preparation exhibited the same plastic strength (37 Pa), whereas this value of the binder without CaCO3 has increased, in average by 5.5 times, affecting negatively shelf life of this binder to be used as base in protective coatings. A conclusion was made that the addition of CaCO3 intensified the nano-structured formation processes in the direction of formation of Na-Ca zeolite-like phases; shortening time required the cement stone to gain water resistance in normal conditions.

English abstract

The influence of CaCO3 on nano-structured, flowability and plastic strength of alkali activated alumonosilicate binders based on metakaolin for the range of oxide ratios in a structural formula of the Na2O∙Al2O3∙(2.5-4.5)SiO2∙(12-17)H2O + (5-15%)CaCO3 system was studied. The results of the study showed that the ratios of SiO2/Al2O3 – 3.8, H2O/Al2O3 – 13.75, and content of CaCO3 of 5% by mass were the most optimal ones from the point of view of meeting requirements for these binders to be used as base in protective coatings. The results of the study showed that process flowability of the binder with optimal ratios of oxides and 5 % by mass of additive 2 hours after preparation was by 5.4% lower, being by 5 times lower than that of the binder without the additive (CaCO3). The binder containing 5% CaCO3 by mass during 2 hours after preparation exhibited the same plastic strength (37 Pa), whereas this value of the binder without CaCO3 has increased, in average by 5.5 times, affecting negatively shelf life of this binder to be used as base in protective coatings. A conclusion was made that the addition of CaCO3 intensified the nano-structured formation processes in the direction of formation of Na-Ca zeolite-like phases; shortening time required the cement stone to gain water resistance in normal conditions.

Keywords

Aluminosilicate binder; Carbonate addition; FlowabilityNano-structured; Plastic strength

Released

20.07.2018

Publisher

Trans Tech Publications Ltd

ISBN

9783035713480

Book

Solid State Phenomena

Pages from

192

Pages to

197

Pages count

6

Documents

BibTex


@inproceedings{BUT149960,
  author="Lenka {Bodnárová} and S.G. {Guziy} and Rudolf {Hela} and Pavel {Krivenko} and Grigorii Viktorovich {Vozniuk}",
  title="Nano-structured alkaline aluminosilicate binder by carbonate mineral addition",
  annote="The influence of CaCO3 on nano-structured, flowability and plastic strength of alkali activated alumonosilicate binders based on metakaolin for the range of oxide ratios in a structural formula of the Na2O∙Al2O3∙(2.5-4.5)SiO2∙(12-17)H2O + (5-15%)CaCO3 system was studied. The results of the study showed that the ratios of SiO2/Al2O3 – 3.8, H2O/Al2O3 – 13.75, and content of CaCO3 of 5% by mass were the most optimal ones from the point of view of meeting requirements for these binders to be used as base in protective coatings. The results of the study showed that process flowability of the binder with optimal ratios of oxides and 5 % by mass of additive 2 hours after preparation was by 5.4% lower, being by 5 times lower than that of the binder without the additive (CaCO3). The binder containing 5% CaCO3 by mass during 2 hours after preparation exhibited the same plastic strength (37 Pa), whereas this value of the binder without CaCO3 has increased, in average by 5.5 times, affecting negatively shelf life of this binder to be used as base in protective coatings. A conclusion was made that the addition of CaCO3 intensified the nano-structured formation processes in the direction of formation of Na-Ca zeolite-like phases; shortening time required the cement stone to gain water resistance in normal conditions.",
  address="Trans Tech Publications Ltd",
  booktitle="Solid State Phenomena",
  chapter="149960",
  doi="10.4028/www.scientific.net/SSP.276.192",
  howpublished="print",
  institution="Trans Tech Publications Ltd",
  year="2018",
  month="july",
  pages="192--197",
  publisher="Trans Tech Publications Ltd",
  type="conference paper"
}