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Title: Experimental Study on Properties of Mortar Containing Molten Slag as Fine Aggregate

Author(s): Yuto Yamanaka, Hiromi Fujiwara, Masanori Maruoka, and Ryosuke Otsuka

Publication: Symposium Paper

Volume: 326


Appears on pages(s): 49.1-49.10

Keywords: compressive strength, drying shrinkage, fine aggregate, fresh properties, integrated gasification combined cycle, molten slag

DOI: 10.14359/51711032

Date: 8/10/2018

The properties of mortar prepared using the molten slag from coal gasification as fine aggregate were studied, with the aim of effectively using coal gasification molten slag, a new waste product, in order to resolve the urgent need to find a source of aggregate for concrete in Japan, and also to promote the use of the Integrated Gasification Combined Cycle (IGCC) to enable high-efficiency power generation. The study found that this aggregate offered improved mortar properties such as fluidity, slightly lower compressive strength and bending strength, and a reduced drying shrinkage as compared to mortar prepared using natural aggregate, indicating the possibility that molten slag from coal gasification can be used as fine aggregate.