The significance of improvements in fly ash quality

The long history of research into the properties of and uses for fly ash began in the United Kingdom in the late 1940s. Since this time the Electricity Supply Industry and others have continued to research the subject. Dissemination of project work benefiting from this research was generally through publication by the industry of Technical Bulletins. Political, economic and environmental attitudes now demand that all aspects of and potential for a greater use of the material are considered. A review of these Technical Bulletins suggests that a number of constructions and processes, somewhat unusual at the time, should be revisited. This paper considers how the earlier research, constructions and processes developed the increasingly beneficial and more widespread use of the material. It suggests those areas that should be reconsidered as potential avenues for development.