Study on Slag Quality of Furnace Conditions

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  • スラグ作成条件の品質におよぼす影響
  • スラグ サクセイ ジョウケン ノ ヒンシツ ニ オヨボス エイキョウ

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Abstract

If molten slag can be used as concrete aggregate, a large amount of slag can be utilized. So, most of the slag made of MSW incineration residue will be able to be used as a sand alternative. This means that it's possible to preserve some natural resources, because sand consumption is partly replaced by the slag. In spite of this merit, when water, slag and cement are mixed, hydrogen gases sometimes evolve, which causes gas bubbles in the concrete. In this study to prevent such gases from evolving, we made slag of different MSW incineration residues and by changing the furnace conditions, resident time and melting temperature. Mixing the slag, cement and water, the evolved gas volume was measured. We were able to find several relationships between the evolved gas volume and these conditions.

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