To provide a soil-improving solidifying material which is used for hydraulic filling and enables the employment of improved dug soil for filling back as a substitute of purchased sand, to provide a method for producing improved soil for hydraulic filling, and to provide a hydraulic filling engineering method.
This soil-improving solidifying material which is used for hydraulic filling and for improving soil into coarse particle soil-like uniform soil that is not converted into mud, even when the soil particles are granulated, solidified and mixed with water, is characterized by comprising quick lime and an inorganic material which comprises aluminum, silicon and calcium in amounts of 10 to 50 wt. %, 10 to 65 wt. % and 2 to 40 wt. % converted into oxides, respectively, after calcined, and whose components have enhanced reaction activities by a calcination treatment. The method for producing the improved soil for hydraulic filling is characterized by adding, stirring and mixing the soil-improving solidifying material for hydraulic filling to dug soil to granulate and solidify the mixture. The hydraulic filling engineering method is characterized by filling back a dug site with the hydraulic filling improved soil obtained by the production method, and then fluidizing the site with water to fill and compact the soil or fill and compact the soil and simultaneously remove the excessive water.
COPYRIGHT: (C)2005,JPO&NCIPI
Natsume Hisato
Nishioka Masatoshi
Sakae Kiriyama
Toshihiro Mizuno
Nobuhiro Koseki
Kenji Kido
Kawai Lime Industry Co., Ltd.
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