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PRODUCING METHOD OF HYDRATED AND SOLIDIFIED STEEL SLAG PRODUCT
To provide a producing method of a hydrated and solidified steel slag product having excellent expansion stability.SOLUTION: The producing method of the hydrated and solidified steel slag product according to the present embodiment includes a preparation step of preparing electric furnace slag with a MgO content of more than 8.5 mass%, and a kneading step of kneading 1000 to 2000 kg of steelmaking slag, 300 to 400 kg of binder, 150 to 250 kg of water, and 0 to 700 kg of blast furnace slag per 1 m3. Regarding the steelmaking slag at the kneading step, a blending ratio of the electric furnace slag is more than 25 to 100 mass%, and a blending ratio of low Mg-containing steelmaking slag with a MgO content of 8.5 mass% or less is 0 to less than 75 mass%.SELECTED DRAWING: Figure 1
【課題】優れた膨張安定性が得られる鉄鋼スラグ水和固化体の製造方法を提供する。【解決手段】本実施形態の鉄鋼スラグ水和固化体の製造方法は、ＭｇＯ含有率が質量％で８．５％を超える電気炉スラグを準備する準備工程と、１ｍ３あたりで、１０００～２０００ｋｇの製鋼スラグと、３００～４００ｋｇの結合材と、１５０～２５０ｋｇの水と、０～７００ｋｇの高炉スラグと、を練混ぜる練混ぜ工程とを含む。練混ぜ工程では、製鋼スラグにおいて、電気炉スラグの配合率を質量％で２５超～１００％とし、ＭｇＯ含有率が質量％で８．５％以下の低Ｍｇ含有製鋼スラグの配合率を質量％で０～７５％未満とする。【選択図】図１
PRODUCING METHOD OF HYDRATED AND SOLIDIFIED STEEL SLAG PRODUCT
To provide a producing method of a hydrated and solidified steel slag product having excellent expansion stability.SOLUTION: The producing method of the hydrated and solidified steel slag product according to the present embodiment includes a preparation step of preparing electric furnace slag with a MgO content of more than 8.5 mass%, and a kneading step of kneading 1000 to 2000 kg of steelmaking slag, 300 to 400 kg of binder, 150 to 250 kg of water, and 0 to 700 kg of blast furnace slag per 1 m3. Regarding the steelmaking slag at the kneading step, a blending ratio of the electric furnace slag is more than 25 to 100 mass%, and a blending ratio of low Mg-containing steelmaking slag with a MgO content of 8.5 mass% or less is 0 to less than 75 mass%.SELECTED DRAWING: Figure 1
【課題】優れた膨張安定性が得られる鉄鋼スラグ水和固化体の製造方法を提供する。【解決手段】本実施形態の鉄鋼スラグ水和固化体の製造方法は、ＭｇＯ含有率が質量％で８．５％を超える電気炉スラグを準備する準備工程と、１ｍ３あたりで、１０００～２０００ｋｇの製鋼スラグと、３００～４００ｋｇの結合材と、１５０～２５０ｋｇの水と、０～７００ｋｇの高炉スラグと、を練混ぜる練混ぜ工程とを含む。練混ぜ工程では、製鋼スラグにおいて、電気炉スラグの配合率を質量％で２５超～１００％とし、ＭｇＯ含有率が質量％で８．５％以下の低Ｍｇ含有製鋼スラグの配合率を質量％で０～７５％未満とする。【選択図】図１
PRODUCING METHOD OF HYDRATED AND SOLIDIFIED STEEL SLAG PRODUCT
鉄鋼スラグ水和固化体の製造方法
JINBO MASATO (author)
2024-02-08
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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