Sulphoaluminate cement and preparation method thereof
A technology of sulfoaluminate cement and calcium sulfosilicate, which is applied in the field of cement preparation, can solve problems such as harmful minerals, achieve high early strength, simple preparation, and reduce consumption
Inactive Publication Date: 2015-05-13
CHONGQING UNIV
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The invention discloses sulphoaluminate cement. The sulphoaluminate cement is characterized by containing 5%-35% by mass of calcium sulphosilicate mineral. The invention further discloses a preparation method of the sulphoaluminate cement. The preparation method is characterized in that the fired clinker contains calcium sulphosilicate, and comprises the following steps of firstly, calcining a raw material according to a proper calcination process in preparation; carrying out secondary calcination according to the set calcination temperature and heat preservation time; and grinding secondarily calcined cement clinker and additive gypsum to prepare the sulphoaluminate cement. The sulphoaluminate cement is simple to prepare, convenient to implement and low in cost; the later strength shrinkage problem of the sulphoaluminate cement can be improved; meanwhile, the calcium sulphate content can be improved; the silicate waste residues with high calcium sulphate content are digested; and the production and application ranges of the sulphoaluminate cement are expanded.
Technology Topic
AluminateClinker (waste) +4
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