Hydrothermal Synthesis of Tobermorite at 170 and 190 °C from Fly Ash and Quartz Sand

Ján Fleischhacker; Ester Helanová; Rostislav Drochytka

doi:10.4028/www.scientific.net/MSF.865.42

Paper Titles

Study of the Effect of Diatomite as a Partial Replacement of Cement in Cement Pastes
p.22

Technological Properties Testing of Blended Portland Cements with Fluidized Filter Ash
p.27

Effect of Used Binders in Lightweight Plaster Mixtures on their Thermal Insulation Properties
p.32

Effect of Curing Regime on the Properties of Alkali-Activated Slag/Limestone Mortar Subjected to High Temperatures
p.37

Hydrothermal Synthesis of Tobermorite at 170 and 190 °C from Fly Ash and Quartz Sand
p.42

Testing of Possible Use of Fine-Grained Alkali Activated Composites in the Construction Industry
p.47

Mechanical Properties of Alkali-Activated Material with Waste Aggregate According to Porosity
p.53

Influence of Aluminous Cement on the Hardening Rate of Cement-Based Stucco Mortars
p.57

Utilization of Nanofibers in Sintered Ceramic Body Based on Calcium Aluminous Cement
p.62

HomeMaterials Science ForumMaterials Science Forum Vol. 865Hydrothermal Synthesis of Tobermorite at 170 and...

Hydrothermal Synthesis of Tobermorite at 170 and 190 °C from Fly Ash and Quartz Sand

Abstract:

Tobermorite is the main mineral which provides to aerated concrete mechanical properties. It is produces during hydrothermal conditions by reacting silicon and calcium oxides. Within this research was evaluated tobermorite formation using high temperature combustion fly ash and quartz sand, as the siliceous raw materials. As a binder was used lime. Emphasis was also placed on the molar ratio of C/S, which is crucial for the formation of tobermorite and was given 0.73 and 1.00. Hydrothermal synthesis was carried out in a laboratory autoclave at temperatures of 170 and 190 °C.

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Periodical:

Materials Science Forum (Volume 865)

Pages:

42-46

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.865.42

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Online since:

August 2016

Authors:

Ján Fleischhacker, Ester Helanová*, Rostislav Drochytka

Keywords:

Calcium Silicate Hydrates, Fly Ash, Hydrothermal Synthesis, Katotite, Molar Ratio, Quartz Sand, Tobermorite, XRD

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