Results of tests of Portland cement with the additive of calcium sulfoaluminate and superplasticizers are given. It is shown that superplasticizers reduce water requirement of cement paste, lengthen setting time, provide increased the strength of sulfoaluminate cement. Portland cement with the additive of calcium sulfoaluminate has high strength and expansion. Superplasticizers added to this mix cement provide increased strength and stabilization of cement paste expansion.
sulfoaluminate cement, strength, expansion, water requirement, setting
1. Kuznecova T. V., Yudovich B. E. Betony - puti razvitiya // Cement i ego primenenie. - 2005. - № 5. - S. 68-69.
2. Batrakov V. G. Modificirovannye betony. - M.: Tehnoproekt, 1998. - 768 s.
3. Kuznecova T. V., Krivoborodov Yu. R., Samchenko S. V. Himiya, sostav i svoystva special'nyh cementov // Himiya i himicheskaya tehnologiya na rubezhe tysyacheletiy: Materialy nauchno-prakticheskoy konferencii. - Tomsk: TPU, 2000. - S. 96-98.
4. Krivoborodov Yu. R., Boyko A. A. Vliyanie mineral'nyh dobavok na gidrataciyu glinozemistogo cementa // Tehnika i tehnologiya silikatov. - 2011. - T. 18, № 4. - S. 12-15.
5. Compatibility between PCE admixtures and calcium aluminate cement / M. M. Alonso, T. Vazquez, F. Puertas [et al.] // Proceedings of 13th International Congress on the Chemistry of Cement. - Madrid, 2011. - P. 382.
6. Kuznecova T. V. Alyuminatnye i sul'foalyuminatnye cementy. - M.: Stroyizdat, 1986. - 206 s.
7. Osokin A. P., Krivoborodov Yu. R. Svoystva rasshiryayuschihsya cementov i ih primenenie // Cement i ego primenenie. - 2004. - № 6. - S. 43-46.
8. Kurdowski W., George M., Sorrentino F. Special cements // Proceedings of 8th International Congress on the Chemistry of Cement. - Rio de Janeiro, 1986. - P. 292-318.
9. Krivoborodov Yu. R., Samchenko S. V. Sostav i svoystva rasshiryayuschihsya cementov: ucheb. poso- bie. - M.: RHTU im. D. I. Mendeleeva, 2004. - 52 s.