Abstract
The quality of ferro-nickel slag as fine aggregates for concrete was standardized into JIS A 5011 at October 1992. In response to this standardization, the Japan Society of Civil Engineers and the Architectural Institute of Japan intended to publish respectively “The guidelines for concrete using ferro-nickel slag as fine aggregates”. This paper explains the quality of ferro-nickel slag fine aggregates standardized in JIS and the recommendation of the concrete using the ferro-nickel slag in both guidelines. In these guidelines, ferro-nickel slag fine aggregates are recommended to blend with natural sand but also single use. The main aims of the blended sand are improvement of particle size distribution and/or the decrease of chloride content in natural sands. In general, the ratio of ferro-nickel slag in the blended sand should be limited less than fifty percent.
