Preparation of sulphoaluminate belite cement from fly ash

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Cement and Concrete Research; (United States)

DOI:https://doi.org/10.1016/0008-8846(94)90030-2· OSTI ID:7165491

Sahu, S; Majling, J ^[1]

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1. Slovak Technical Univ., Bratislava (Slovakia). Dept. of Ceramics, Glass and Cement

Sulphoaluminate belite cements containing the phases C[sub 2]S, C[sub 4]A[sub 3][bar S], C[sub 4]AF, C[bar S] were synthesized from limestone, fly ash and gypsum at 1,200 C. The correspondence between the predicted phase composition and real phase composition were checked. The influence of quantities of different phases in the hydration behavior and strength development were verified. Results show that an optimum proportion of phase quantities help in high strength development in early age. These cements fulfill all the requirement of Portland cement and have very high early strength. Porosity measurements show that the total pore volume in early period is comparatively less than that of Ordinary Portland Cement. Thus these cements can be usable for special purposes.

• OSTI ID: 7165491
• Journal Information: Cement and Concrete Research; (United States), Journal Name: Cement and Concrete Research; (United States) Vol. 24:6; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
36 MATERIALS SCIENCE
360600 -- Other Materials
AEROSOL WASTES
ASHES
BUILDING MATERIALS
CEMENTS
COMBUSTION PRODUCTS
FLY ASH
MANUFACTURING
MATERIALS
MECHANICAL PROPERTIES
PHASE STUDIES
RESIDUES
WASTE PRODUCT UTILIZATION
WASTES