White Portland cement, (a cement containing less than 0.3% iron oxide), reacts rapidly with salicylaldehyde (2-hydroxybenzaldehyde), causing rapid setting and hardening in the absence of added water. One of the reaction products was identified as a calcium complex of salicylaldehyde (CHOC6HsO)zCa. T
A discussion of the paper “the mechanism of hardening and hydration of white portland cement admixed with salicylaldehyde” by A.M. Dunster, D.ap. Kenrick and J.R. Parsonage
✍ Scribed by M.C. Ball
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 155 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0008-8846
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✦ Synopsis
The work described by the above author&) in a study of the effects of salicylaldehyde on WIC, differs in some respects from that carried out by Ball and Tomkins.(2) When normal air-dry WPC is mixed with the aldehyde, an immediate setting reaction occurs, with some yellowing of the mixture. The setting is much slower when OPC is used. This yellow phase can be extracted with 96% alcohol.
📜 SIMILAR VOLUMES
M. Relis and J. Soroka conclude in their article (i) that the density of the hydration products varies with the degree of hydration. The density of the hydration products, according to these authors, starts out with a relatively low density, and gradually increase towards a higher value. This variat