Verification of Synthetic Preparation of Thaumasite

Alexandra Masárová

doi:10.4028/www.scientific.net/MSF.851.80

Paper Titles

Possibilities of Using Plasticizers in Alkali-Activated Systems
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Effect of Phosphates on the Hydration Process of Alkali Activated Materials
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The Basics of Low Volume Weight Aerated Autoclaved Concrete Preparation
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Optimization of Alternative Aggregates Based on Fluid Combustion Fly Ashes
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Verification of Synthetic Preparation of Thaumasite
p.80

Mechanisms of Macro-Pores Origin in the MDF Composites Fabrication
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Application of Sol-Gel Method to Investigate the Influence of P₂O₅ on the Course of Reactions in CaO-SiO₂ System
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Chloride Resistance of Alkali Activated Slag Pastes with Fly Ash Replacement
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The Influence of Particle Size of Cement and Different Additives on the Properties of Portland Cement Pastes
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HomeMaterials Science ForumMaterials Science Forum Vol. 851Verification of Synthetic Preparation of...

Verification of Synthetic Preparation of Thaumasite

Abstract:

AFt phases – mainly ettringite and thaumasite, as products of sulfate attack in concrete, can cause serious damage to cement binder. The second mentioned, thaumasite CaSiO₃∙CaCO₃∙CaSO₄∙15H₂O, is connected to lower temperatures. It is less common and less known. For further research of this mineral, it is fundamental to prepare thaumasite in clear form in laboratory conditions. The aim of this work was to try several possibilities of thaumasite preparation - firstly by burning of mixes consisting of stoichiometric proportions of particular components in thaumasite and secondly by method in sugar solution and in MgSO₄solution.

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Periodical:

Materials Science Forum (Volume 851)

Pages:

80-85

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.851.80

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Online since:

April 2016

Authors:

Alexandra Masárová*

Keywords:

AFt Phases, Cement, Sulfate Attack, Ternesite, Thaumasite, X-Ray Powder Diffraction

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