Beneficial use of a cell coupling rheometry, conductimetry, and calorimetry to investigate the early age hydration of calcium sulfoaluminate cement
作者： Jean-Baptiste Champenois , Celine Cau Dit Coumes , Arnaud Poulesquen , Patrick Le Bescop , Denis Damidot
DOI: 10.1007/S00397-013-0675-9
关键词:
摘要: A specific cell was designed to monitor simultaneously the evolution of viscoelastic properties, electrical conductivity, and temperature a cement paste with ongoing hydration. Hydration calcium sulfoaluminate by demineralised water or borated solution then investigated as an example. Borate anions acted set retarders but smaller extent than ordinary Portland cement. The delay in hydration resulted from precipitation amorphous poorly crystallized borate, which also caused rapid stiffening (and thus loss workability) after mixing. gypsum content CSA shown play key role control reactivity.
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