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Molecular level deformation mechanism of ettringite
Cement and Concrete Research, 2019Abstract Ettringite is an naturally occurring mineral as well as is formed as an intermediate product during cement curing. A comprehensive molecular deformation study of the material has been presented in this study. The molecular deformation of the material for quasistatic uniaxial tension and compression (along different directions) along with ...
Prodip Kumar Sarkar +2 more
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Decomposition of synthesized ettringite by carbonation
Cement and Concrete Research, 1992The stability of ettringite (3CaO·Al2O3·3CaSO4·32H2O) in contact with CO2 gas has been studied using synthesized ettringite. Carbonation were carried out at water/solid ratios(W/S) of 0.6∼3.5 in a moist CO2-incubator. According to the SEM-EDAX examination, the carbonation without water makes compositional changes slightly in ettringite, maintaining ...
T. Nishikawa +4 more
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Superplasticizer Adsorption on Synthetic Ettringite
SP-217: Seventh CANMET/ACI International Conference on Superplasticizers and Other Chemical Admixtures in Concrete, 2003Superplasticizers typically work within the first 2 hours of cement hydration. Therefore, early hydration products have to be studied to investigate their mode of action. The experiments in this paper demonstrate that ettringite is a preferred phase for the adsorption of polycondensate or polycarboxylate based superplasticizers, whereas polycondensate ...
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“Ettringite terminology” not “Ettringite technology”
Cement and Concrete Research, 1997openaire +1 more source