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A platform for research: civil engineering, architecture and urbanism
MANUFACTURING METHOD OF GROUT FILLER MATERIAL OF POST-FOAMING TYPE
PROBLEM TO BE SOLVED: To provide a manufacturing method of a grout filler material of post-foaming type using a slag-lime based inorganic hydraulic material, having high fluidity and less generation of coarse bubbles and cracks, even having a magnitude of expansion of 40% or more.SOLUTION: A grout filler material is prepared by mixing a slag-lime based inorganic hydraulic material, a viscosity adjusting agent, aluminum powder, and a surfactant with water to make a slurry, and the volume then expands due to a foaming reaction of the aluminum powder. The manufacturing method of the grout filler material of post-foaming type includes using hard burned quick lime with an activity of 50 to 200 ml in the hydrochloric acid titration as the lime. The weight ratio between the slag and the lime is preferably in the range of 95:5 to 70:30. The slag is mainly composed of, preferably, a blast furnace slag having a Blaine fineness of 2500 to 6000 cm2/g. The lime has a Blaine fineness of, preferably, 2000 to 4000 cm2/g.
【課題】無機系水硬性材料としてスラグ-石灰系を用いて、高い流動性を有し、膨張倍率４０％以上であっても粗大気泡や亀裂等の発生が少ない事後発泡型充填グラウト材の製造方法を提供する。【解決手段】スラグ−石灰系の無機系水硬性材料、粘度調節材、アルミニウム粉末および界面活性剤を水と混合しスラリーとした後にアルミニウム粉末の発泡反応によって体積膨張する充填グラウト材であって、該石灰を塩酸滴定法の活性度が５０〜２００ｍｌである硬焼生石灰粉末とすることを特徴とする事後発泡型充填グラウト材の製造方法。前記スラグおよび石灰の重量比率が、９５：５〜７０：３０の範囲であることが好ましい。前記スラグが、ブレーン値２５００〜６０００ｃｍ２／ｇの粉末度である高炉スラグを主成分とすることが好ましい。前記石灰が、ブレーン値２０００〜４０００ｃｍ２／ｇの粉末度であることが好ましい。【選択図】なし
MANUFACTURING METHOD OF GROUT FILLER MATERIAL OF POST-FOAMING TYPE
PROBLEM TO BE SOLVED: To provide a manufacturing method of a grout filler material of post-foaming type using a slag-lime based inorganic hydraulic material, having high fluidity and less generation of coarse bubbles and cracks, even having a magnitude of expansion of 40% or more.SOLUTION: A grout filler material is prepared by mixing a slag-lime based inorganic hydraulic material, a viscosity adjusting agent, aluminum powder, and a surfactant with water to make a slurry, and the volume then expands due to a foaming reaction of the aluminum powder. The manufacturing method of the grout filler material of post-foaming type includes using hard burned quick lime with an activity of 50 to 200 ml in the hydrochloric acid titration as the lime. The weight ratio between the slag and the lime is preferably in the range of 95:5 to 70:30. The slag is mainly composed of, preferably, a blast furnace slag having a Blaine fineness of 2500 to 6000 cm2/g. The lime has a Blaine fineness of, preferably, 2000 to 4000 cm2/g.
【課題】無機系水硬性材料としてスラグ-石灰系を用いて、高い流動性を有し、膨張倍率４０％以上であっても粗大気泡や亀裂等の発生が少ない事後発泡型充填グラウト材の製造方法を提供する。【解決手段】スラグ−石灰系の無機系水硬性材料、粘度調節材、アルミニウム粉末および界面活性剤を水と混合しスラリーとした後にアルミニウム粉末の発泡反応によって体積膨張する充填グラウト材であって、該石灰を塩酸滴定法の活性度が５０〜２００ｍｌである硬焼生石灰粉末とすることを特徴とする事後発泡型充填グラウト材の製造方法。前記スラグおよび石灰の重量比率が、９５：５〜７０：３０の範囲であることが好ましい。前記スラグが、ブレーン値２５００〜６０００ｃｍ２／ｇの粉末度である高炉スラグを主成分とすることが好ましい。前記石灰が、ブレーン値２０００〜４０００ｃｍ２／ｇの粉末度であることが好ましい。【選択図】なし
MANUFACTURING METHOD OF GROUT FILLER MATERIAL OF POST-FOAMING TYPE
事後発泡型充填グラウト材の製造方法
TERAMURA TOSHIFUMI (author) / KATO TAKAYOSHI (author)
2015-11-02
Patent
Electronic Resource
Japanese
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