A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The development of creosote macroemulsions to be used for wood preservation
Bibliography: pages 62-67. ; Creosote treated timber "bleeds" profusely in hot weather and develops tarry, oily surfaces that are difficult to handle and pose a health hazard. The objective of this work is to investigate the possibility of improving the surface condition of the creosote treated timber. The possibility of using creosote macroemulsions for wood impregnation purposes was investigated. Creosote emulsions also present the possibility of improving other creosote characteristics such as penetration and distribution of creosote in wood during treatment. Creosote emulsions were successfully developed by identifying the suitable class of surfactants (anionic}, chemical type of surfactant (unsaturated fatty acids), and type of emulsion (water-in-oil). However, these emulsions could not improve the surface condition of the creosote treated timber. The penetration and distribution characteristics of both the creosote emulsion and unemulsified creosote were satisfactory. Both the creosote emulsion and the unemulsified creosote penetrated the sapwood completely but there was no penetration into the hardwood.
The development of creosote macroemulsions to be used for wood preservation
Bibliography: pages 62-67. ; Creosote treated timber "bleeds" profusely in hot weather and develops tarry, oily surfaces that are difficult to handle and pose a health hazard. The objective of this work is to investigate the possibility of improving the surface condition of the creosote treated timber. The possibility of using creosote macroemulsions for wood impregnation purposes was investigated. Creosote emulsions also present the possibility of improving other creosote characteristics such as penetration and distribution of creosote in wood during treatment. Creosote emulsions were successfully developed by identifying the suitable class of surfactants (anionic}, chemical type of surfactant (unsaturated fatty acids), and type of emulsion (water-in-oil). However, these emulsions could not improve the surface condition of the creosote treated timber. The penetration and distribution characteristics of both the creosote emulsion and unemulsified creosote were satisfactory. Both the creosote emulsion and the unemulsified creosote penetrated the sapwood completely but there was no penetration into the hardwood.
The development of creosote macroemulsions to be used for wood preservation
1999-01-01
Theses
Electronic Resource
English
DDC:
690
Preservation of external timber by creosote
| Engineering Index Backfile | 1933
Use of creosote as wood preservative
Engineering Index Backfile | 1932
Major uses of creosote as wood preservative
| Engineering Index Backfile | 1962
Treatability of US wood species with pigment-emulsified creosote
| Tema Archive | 2000
Microbiological metabolism of creosote
| Engineering Index Backfile | 1966