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Part A describes the investigations into the use of air-pelletized blast-furnace slag for the manufacture of cement and as an aggregate for light-weight concrete. Where glass contents are comparable, there are no significant differences between the strength of cements made from water-granulated blast-furnace slag and those made from air-pelletized blast-furnace slag. Concreting trials showed that where the coarser grades (4-16 mm) were used, it was possible to make both densely-textured lightweight concrete and larger-pored bulk-material concrete of the required strength. Part B describes the development of an instrument to determine the volume stability of unbound LD slags. For an unbound lime content of 7% by weight, volumes in the laboratory tests only increased by less than 5%. At higher free lime concentrations, increases in volume are significantly greater and there is a wide scatter in the results.

Additional information

Authors: GEISELER J, Forschungsgemeinschaft Eisenhuttenschlacken, Duisburg (DE)
Bibliographic Reference: EUR 11505 DE (1988)
Availability: (2)
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