Synthesis and characterisation of sulfite-containing AFm phases in the system CaO-Al2O3-SO2-H2O

被引：45

作者：

Motzet, H ^{[1
]}

Pöllmann, H ^{[1
]}

机构：

[1] Univ Halle Wittenberg, Dept Mineral & Geochem, D-06108 Halle, Germany

来源：

CEMENT AND CONCRETE RESEARCH | 1999年 / 29卷 / 07期

关键词：

waste management; ettringite; hydration; hydration products; X-ray diffraction;

D O I：

10.1016/S0008-8846(99)00082-4

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The use of sulfite-containing waste materials mainly from flue gas desulfurization causes the formation of new lamellar phases (AFm) in the field of calcium aluminum hydrates. The incorporation of sulfite anions in the structure of lamellar calcium aluminate hydroxy salts and solid solutions with tetracalcium aluminate hydrate will be shown. Using special synthesis conditions a sulfite containing ettringite (AFt) was synthesized. Besides the pure synthesis of phases, the thermal stability, the hydration stages, and other properties of sulfite-containing phases were investigated, Solid solutions of lamellar calcium aluminate hydroxy salts are discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1005 / 1011

页数：7

共 23 条

[1]

ALLMANN R, 1977, NEUES JB MINER MONAT, V3, P136

[2] CRYSTALLOGRAPHIC DATA FOR NEW PHASES IN THE CASO3-H2O SYSTEM [J].

ARAI, Y ;

YASUE, T ;

NAGATA, N ;

SHINO, H .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1982, 55 (03) :738-741

[3]

Bloss W., 1982, TIZ FACHBERICHTE, V106, P644

[4]

ECKER M, 1998, THESIS U HALLE SAALE

[5]

FISCHER R, 1977, THESIS FRIEDRICH ALE

[6]

KELLE H, 1971, THESIS U MAINZ MAINZ

[7]

KUHLE K, 1989, GIPS, V9, P441

[8]

KUHLE K, 1987, GIPS, V11, P537

[9] CALCIUM, STRONTIUM, BARIUM, LEAD, AND CADMIUM SULFITES - THERMAL-ANALYSIS, X-RAY, RAMAN, AND IR SPECTROSCOPIC DATA [J].

LUTZ, HD ;

ELSURADI, S .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1976, 425 (02) :134-144

[10]

Marusin S., 1987, PROC 9 INT C CEMENT, P416

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