産業廃棄物のコンクリートへの利用に関する研究 : その3.電気炉スラグコンクリートの風化崩壊防止効果

概要

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The purpose of this study is to investigate on the weathering expansion mecanism of Arc-Furnace slag concrete and the preventine method for weathering expansion crack on arcfurnace slag concrete. For the above purpose, two kinds of experiment were perfomed to investigate the completion of weathering expansion (hydration) reaction in arc-furnace slag and an effective preventive method of weathering expansion crack on arc-furnace slag concrete using hydration accelerating reaction slag. The results obtained by this investigation are as follows; (1) The weathering expansion crack of arc-furnace slag concrete is caused by hydration reaction in slag. The results obtained by this investigation are as follows : (2) The time required untile the completion of weathering expansion reaction in arc-furnace slag is about five to six months after a soak slag is immersed in the water. (3) The practical weathering expansion accelerating method for arc-farnace slag are the immersing method or the wet curing method. (4) To prevente the weathering expansion crack in arc-furnace slag concrete, it is necessary to use the immersed slag in the water for period of months. (5) Effective prevention for the weathering expansion crack of arc-furnace slag concrete is clearlv influenced bv the slag size for corse aererregrate.
大同工業大学の論文