|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||Development of Continuous Blast Furnace Slag Solidification Process for Coarse Aggregates
||Yasutaka Ta, Hiroyuki Tobo, Hisahiro Matsunaga, Keiji Watanabe
|On-Site Speaker (Planned)
Recently, it is expected to utilize by-product as aggregate for concrete from the point of view of depletion of natural crushed stone and suppression of environmental loads. We developed the new process of continuous blast furnace slag solidification for coarse aggregate. In this process, molten slag is continuously poured into the mold and the slag is solidified at the thickness of 20 to 30 mm. The flow rate of molten slag is 1 t/min and the maximum production per 1 ladle is about 30t. After solidification, by crushing and adjusting the particle size, it becomes blast furnace slag coarse aggregate (BFG). The new BFG has under 1% water absorption and the concrete contained the BFG has the fresh property and compressive strength after 28 day as the same as natural crushed stone.