✦ LIBER ✦
Some factors affecting formation of truscottite and xonotlite at 300–350°C
✍ Scribed by K. Luke; H.F.W. Taylor; G.L. Kalousek
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 423 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0008-8846
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✦ Synopsis
Formation of truscottite and xonotlite was studied at Ca/(Si + A~) = 0.6, 300-350°C and saturated steam pressures.
Truscottite is favored by use of silicic acid rather than quartz, or of B-CzS rather than Ca(OH)2, and by the presence of small amounts of alkali. Partial replacement of Si by A~ has no apparent influence on whether truscottite or xonotlite is formed.
In runs at 350°C and saturated steam pressure using commercial Class G or Class J oil-well cements, truscottite was slowly replaced by xonotlite, but wollastonite may be the ultimately stable product under these conditions.