Physicochemical principles of hydrophobization of mineral binders by additives produced from peat raw material

The results of theoretical and experimental studies aimed at developing a method for hydrophobization of mineral binders and building materials based on them by additives extracted from the organic matter of peat are presented. The processes occurring in heat treatment of peat are studied by analyzi...

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Bibliographic Details
Published in:Theoretical foundations of chemical engineering 2006-07, Vol.40 (4), p.423-430
Main Author: Misnikov, O. S.
Format: Article
Language:English
Subjects:
Additives
Building materials
Construction materials
Heat treatment
Hydrophobicity
Organic matter
Peat
Raw materials
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Summary:The results of theoretical and experimental studies aimed at developing a method for hydrophobization of mineral binders and building materials based on them by additives extracted from the organic matter of peat are presented. The processes occurring in heat treatment of peat are studied by analyzing the conversion of groups of chemical substances contained in peat. An increase in the concentration of hydrophobic compounds in thermal destruction of peat raw material is substantiated. The hydrophobizing effect of the additives is based on the formation of water-repellent adsorption films of bitumen compounds on cement particles. A working hypothesis of the mechanism of their formation is advanced.
ISSN:0040-5795
1608-3431
DOI:10.1134/S0040579506040130