Roadstone Tests on Present Day Blastfurnace Slag

摘要

The report describes an investigation carried out into the properties of blast-furnace slag from ten works representative of present-day production. The work forms part of a programme of research which is being carried out by the Road Research Laboratory in collaboration with the British Slag Federation to determine the best procedures for using the increasing quantities of slag, including slag of low density, at present being produced. The need for the research arose as a result of the present-day increase in production of lighter-weight slag, which has followed changes in blast-furnace practice. These changes include the increasing use of high-grade imported iron ores and the adoption of a more direct method of cooling the slag. (Author)