Static Modulus of Ettringite in Different Environment

Peng Chen; Zu Quan Jin; Jun Feng Fan

doi:10.4028/www.scientific.net/KEM.726.576

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Static Modulus of Ettringite in Different Environment
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 726Static Modulus of Ettringite in Different...

Static Modulus of Ettringite in Different Environment

Abstract:

The pure ettringite, (Ca₆Al₂(OH)₁₂(SO₄)₃· 32H₂O), was synthesized by chemical reaction with saturation calcium hydroxide and aluminum sulfate. The ettringite in different environments including various concentration of sodium chloride, 5% magnesium sulfate and carbonation for 3 days were synthesized. And then these ettringtie specimens were prepared under different pre-loads. The static modulus and phase composites were tested. The experimental result shown that the influence of chloride ions concentration on the static modulus of ettringite could be ignored. And the magnesium ion reduced the generation of ettringite, and promoted the formation of gypsum. The static modulus of ettringite increased with carbonation time due to the formation of calcium carbonate.

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Periodical:

Key Engineering Materials (Volume 726)

Pages:

576-580

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.726.576

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Online since:

January 2017

Authors:

Peng Chen, Zu Quan Jin, Jun Feng Fan

Keywords:

Boltzmann Function, Corrosion Environment, Ettringite, Static Modulus

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