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- Title
Algicidal Granules from Ceramized Rock. Part 1. Development of Rocks Selection Criteria.
- Authors
Sokov, V. N.; Ramazanov, E. A.
- Abstract
Until recently in the Russian Federation, there was no production of ceramized roofing granules as a product. The basis for producing such granules is the formation of a protective-decorative shell on a mineral carrier (rock). Such granules should have chemical elements in their shell that prevent biofouling and destruction of the protective layer. The criteria for the selection of rocks in Russia with a certain mineral form of iron fixation have been established. A scale of thermogravimetric rock activity has been developed. The production technology involves the application of two layers; at that, the inner layer contains a biocide in the form of copper-zinc brass. The ceramic shell is formed from a solution of kaolin, pigments and sodium liquid glass. As a result of firing, the ceramized granules are covered with a coloured insoluble shell. The solubility of the granules shell is determined by their surface alkalinity.
- Subjects
RUSSIA; SOLUBLE glass; LIQUID sodium; IRON; CHEMICAL elements; KAOLIN; FOULING; ALKALINITY; COPPER-zinc alloys
- Publication
Refractories & Industrial Ceramics, 2023, Vol 63, Issue 5, p540
- ISSN
1083-4877
- Publication type
Article
- DOI
10.1007/s11148-023-00764-7