Factors influencing the sulfate balance in pure phase C3S/C3A systems
By F. Zunino, Karen L. Scrivener. 2020
149 citations recorded by the source corpus.
Abstract Understanding the sulfate balance mechanism of cement is needed for an effective use of sustainable blended cements. Pure phase systems allow to study the interaction between sulfate and each of the phases involved in early age hydration separately. This paper explores the effect of different factors on sulfate requirement in C3S/C3A systems. It was observed that reaction rates of both C3S and C3A have an influence on the overall sulfate balance, as they affect the amount of sulfate adsorbed on C-S-H and the amount of ettringite formed, respectively. Furthermore, the type of sulfate source used (gypsum or hemihydrate) can also significantly change the position of the aluminate peak for the same total sulfate in the system.
Subfields: Civil and Structural Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/1e95aa3c421f7069110440ec25790b98f6165e03
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In Civil and Structural Engineering
In Materials Chemistry
- Á. G. Torre
- J. A. Neto
- A. Kirchheim
- F. Zunino
- Karen L. Scrivener
- B. Lothenbach
- R. Snellings
- J. Provis
Citations in the corpus
- Effects of sulfates on the hydration of Portland cement – A review (2021, background): “The sulfate of the solution is consumed by ettringite formation and C-S-H adsorption [6].”
- The reaction between metakaolin and limestone and its effect in porosity refinement and mechanical properties (2021, background): “The enhancement of the main hydration peak seen in the C3S + LC2 systems is a combination of the effects of gypsum enhancement on C3S hydration [14] and the filler effect contribution of limestone and metakaolin.”