High Strength Artificial Aggregate Using Coal-Ash as Raw Material
By Tokuaki Sone
Concrete Journal, Vol.36, No.12, Dec.1998
- Synopsis
- Artificial aggregates with coal ash as the raw material available from the past have all been foamed-type and of light weight. Recently, however, a high-strength artificial coarse aggregate using coal ash as the main ingredient which, differing from foamed-type aggregate, is of oven-dry specific gravity around 2.0 through densification of aggregate texture, can achieve concrete of high strength and light weight, has been developed. The method of manufacturing this high-strength artificial aggregate, the basic properties of the aggregate and concrete using it, the characteristics of high-strength and high-fluidity concrete containing this aggregate, and its application to structural members are reported in this paper.
- Keywords:
- coal-ash, artificial aggregate, lightweight concrete, high strength concrete, high fluidity concrete, elastic modules.
