The Composition, Drying and Firing Shrinkage, Porosity, and Density of British Fireclays suitable...

JSGT 1920 V04 T162-T205 (44 pages)

The general plan of work which we have set ourselves, to carry through includes the investigation of the chemical composition of the clays, together with the shrinkage on drying and firing, the porosity, density, and refractoriness both with and without load. The raw clays having been examined, it is proposed to attempt their purification and to determine its effect on the properties mentioned. The study of the effect on the shrinkage and porosity when various clays are mixed will follow as also the influence of the relative proportions and the sizes of grog particles. Further, it is hoped to be able to carry out experiments on the corrosive influence of the raw materials and of glass batches on burnt prepared fireclays. Such investigations will go far to provide information of great practical importance to makers of glass pots and blocks and to glass manufacturers themselves.

Edith M. Firth, F. W. Hodkin & W. E. S. Turner