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32 (0,063s)

Result

Verification of Synthetic Preparation of Thaumasite

AFt phases – mainly ettringite and thaumasite, as products of sulfate attack in concrete, can cause serious damage to cement binder. The second mentioned, thaumasite thaumasite in clear form in laboratory conditions. The ai...

JN - Stavebnictví

  • 2016
  • Jx
  • Link
Result

Thaumasit Form of Sulphat Corrosion

Thaumasit form of sulphat corrosion occurs relatively rarly in cemnt-based materials, but it can be very dangerous.

JN - Stavebnictví

  • 2002
  • D
Result

Synthetic preparation of thaumasite – several possible routes for thaumasite formation

is connected to formation of AFt phases – thaumasite and ettringite that cause serious damage to cement stone. Thaumasite (CaSiO3·CaCO3·CaSO4·15H2O) is less known and less are built into thaumasite unite cell, therefore, c...

JN - Stavebnictví

  • 2016
  • Jx
  • Link
Result

Synthetic preparation of thaumasite – several possible routes for thaumasite formation

Presented work is a part of an experiment where limestone is partially replaced by fluidized fly ash during cement manufacturing. Hydration of this type of cement is connected to formation of AFt phases – thaumasite and ettringite that cause...

Civil engineering

  • 2016
  • D
  • Link
Result

Thaumasite formation by hydration of sulphosilicate clinker

This work was aimed at hydration of ternesite based clinkers at low temperatures, with respect to thaumasite formation. Five clinkers with various compositions corresponding to stoichiometric ratios of elements in thaumasite and ter...

Materials engineering

  • 2020
  • Jimp
  • Link
Result

Simulation of thaumasite sulfate attack on Portland cement mixtures using synthesized cement phases

In this work, a simulation of thaumasite sulfate attack on portland cement diffraction analysis and scanning electron microscopy. Thaumasite formed in all samples of thaumasite and ettringitewas detected in samples incorpor...

Construction engineering, Municipal and structural engineering

  • 2019
  • Jimp
  • Link
Result

Effect of fluidized bed ash on the thermodynamic stability of hydraulic binders

FBC ash is one of the youngest industrial waste. This paper focused on its utilization on the production of cement. Becouse of the composition of this ash, there is a serious risk in the production od aft phases as ettringite and thaumasite....

Civil engineering

  • 2017
  • D
  • Link
Result

Long-term thaumasite sulfate attack on Portland-limestone cement concrete: A multi-technique approach for assessing phase assemblage

to conditions promoting thaumasite sulfate attack. The results were interpreted in terms materials (SCMs) (natural pozzolana, blastfurnace slag, metakaolin). Thaumasite pozzolana, thaumasite underwent extensive decompositi...

Materials engineering

  • 2020
  • Jimp
  • Link
Result

Thaumasite formation in cementitious composites used in underground repositories - Conditions and impact on composite's properties: A review

Cement-based materials (CBM) are used for several applications in radioactive waste underground repositories as engineered barriers. Thaumasite sulfate attack repositories and thaumasite characterization; summarizes mechanisms of TS...

Materials engineering

  • 2024
  • Jimp
  • Link
Result

Monitoring durability of limestone cement paste stored at conditions promoting thaumasite formation

The durability of Portland-limestone cement withhigh limestone content was monitored at conditions promoting thaumasite formation. Pore structure and deterioration characteristics were assessed with X-ray micro-computed tomography and correl...

Materials engineering

  • 2020
  • D
  • Link
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