The effect of clinker SO3 on the mineralogical composition of the cement and its expected impact on sulfate resistance level
Source abstract
Abstract
The aim of this study was to clarify the influence of the SO3 on the mineralogical composition of low-alkali clinker and to evaluate its expected impact on the cement sulfate resistance level. The influence of the clinker sulfate on amounts of aluminate, alite and alite/belite ratio was investigated. The solubility rate of the clinker anhydrite was studied. The results showed that the clinker phases were affected by the amount of clinker SO3. The amounts of the aluminate, alite and alite/belite ratio were lower, in the high-SO3 clinker, than that calculated. Based on these results, cement produced with clinker containing around 2% sulfate and low alkali were expected to have a higher sulfate resistance level than the classical one with similar chemical composition. It was also found that formation of the soluble anhydride was not feasible. The anhydrite that was present in the clinker containing over 2% SO3, seemed to be dissolved completely within 5 days.
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Research context
OpenAlex topics: Concrete and Cement Materials Research · Magnesium Oxide Properties and Applications · Recycled Aggregate Concrete Performance
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory and Quality Control Manager, Saint Joseph University, Faculty of Sciences, Campus of Sciences & Technologies, Beirut and Cimenterie Nationale S.A.L., Plant-Laboratory Department, Beirut, Lebanon
Head of Chemistry Department, Saint Joseph University, Faculty of Sciences, Campus of Sciences and Technologies, Beirut, Lebanon
Dean, Saint Joseph University, Faculty of Sciences, Campus of Sciences and Technologies, Beirut, Lebanon
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