Sulfoaluminate-belite cement

Belite-sulfoaluminate cement (BSA) or just Belite-suUbaluminate cement cement in... 

Martln-Sedeno, M. C., A. J. M. Cuberos, A. G. De la Torre, G. Alvarez-Pinazo, L. M. Ordonez, M. Gateshki and M. A. G. Aranda (2010). Aluminum-Rich Belite Sulfoaluminate Cements Clinketing and Early Age Hydration . Cement and Concrete Research 40 (3) 359—369. 

Belite-sulfoaluminate-ferrite cement (BSAF) suhbbehte cement with a particulariy... 

Figure 4.1 XRD scans (IO°-45° 20 range) of typical industrially produced cements white Portland cement (WPC), plain portland cement (PC), calcium aluminate cement (CAC) and calcium sulfoaluminate cement (CSA). The diffraction peaks of the main phases are indicated alite (CjS M3), belite (P-CjS), aluminate (CjA), ferrite (C4AF), calcium aluminate (CA), ye elimite (Yee), anhydrite (Anh), gypsum (Gyp), gehlenite (Geh), mayenite (May) and magnetite (Mag).

Sulfoaluminate-belite cement (SAB) cement in which belite is the main constituent ... 

The development of strength and the extent of expansion will depend on the composition of the cement and the proportions of the phases involved. Within reasonable limits and at appropriate calcium sulfate contents the early strength will increase with increasing amounts of the sulfoaluminate phase in the cement and— to a lesser extent— with increasing content of the ferrite phase. However, the belite phase will affect maiidy the final strength of the cement. Table 4.2 shows the effect of cement composition on the compressive strength development of a series of sulfobelite cements. 

Ivashchenko, S.l. (1992) Cements based on modified Portland and sulfoaluminate-belite... 

Jano a, L, and Krajci, L. (1999) An experimental study on the upgrade of sulfoaluminate-belite cement systems by blending with Portland cement. Advances in Cement Research 11, 35-41. 

Majling, J. et al. (1993) Relationship between raw mixtme and mineralogical composition of sulfoaluminate belite clinkers in the system Ca0-Si02-Al203-Fe203-SO3. Cement and Concrete Research 23, 1351-1356. 

Palon, M.T., and Majling, J. (1995) Preparation of the high iron sulfoaluminate belite cements from raw mixtures incorporating industrial waste. Ceramics Silikaty (Prague) 39,63-67. 

Sahu, S., and Majling, J. (1994) Preparation of sulfoaluminate belite cement from fly ash. Cement and Concrete Research 24,1065-1072. 

Sahu, S., Majling, J., and Havlica. J. (1992) Influence of anhydrite particle size on the hydration of sulfoaluminate belite cement, in Proceedings 9th ICCC, New Delhi, Vol. 4, pp. 443-448. 

Strigac, J., and Majling, J. (1997) Phase composition development of calcium sulfoaluminate belite cement in the SO atmosphere. World Cement 28,82-86. 

Belite fluoro-sulfo-aluminate cement contains simultaneously the phases calcium fluoroaluminate (CjjAy.CaF2) and caldum sulfoaluminate (C4A3S), together with belite and calcium sulfate. It also may contain limited amounts of the ferrite phase. 

In addition to polyvinyl alcohol/acetate and polyacrylamide, some other polymers have also been employed as the orgarric constituents of MDF cement, including polypropylene glycol (Hsu and Juaang, 1992) and hydroxypropyl-methyl cellulose (Drabik et al., 1992, 1998). As well as Portland and calcium aluminate cements, sulfoaluminate-ferrite-belite cement (in combination with hydroxypropyl-methyl cellulose) has also been employed as constituent of an MDF material (Drabik ei a/., 1992, 1997, 1998). 

CSH2 (gypsum) is formed in the hydration of anlydrite present in the calcium sulfoaluminate clinker, and may also be directly inteiblended or interground into the cement. Calcium hydroxide (CH) is formed in the hydration of free lime present in the calcium sulfoaluminate clinker, and also in the lydration of alite and belite present in Portland clinker, both being constituents of the expansive cement. 

Sulfobelite cements contain belite ( -028), calcium sulfoaluminate and calcium... 

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