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A platform for research: civil engineering, architecture and urbanism
GROUND CONSOLIDATION AGENT AND GROUND CONSOLIDATION METHOD USING THE SAME
To provide a ground consolidation agent capable of foaming and hardening the ground to develop sufficient strength without intentionally leaving diphenylmethane diisocyanate.SOLUTION: A ground consolidation agent comprises a component (A) containing an active hydrogen compound, a catalyst and water, and a component (B) containing an isocyanate compound. The active hydrogen compound contains an aromatic amine compound. The isocyanate compound contains an isocyanate group-terminated prepolymer obtained by reacting diphenylmethane diisocyanate and a polyether polyol so that the equivalent ratio of NCO group and OH group (NCO group/OH group) is 1.5 to 2.0.SELECTED DRAWING: None
【課題】意図的にジフェニルメタンジイソシアネートを残存させることなく、発泡硬化して十分な強度を発現することができる地山固結剤を提供する。【解決手段】活性水素化合物、触媒および水を含む（Ａ）成分と、イソシアネート化合物を含む（Ｂ）成分と、を備え、前記活性水素化合物は、芳香族アミン化合物を含み、前記イソシアネート化合物は、ジフェニルメタンジイソシアネートとポリエーテルポリオールとを、ＮＣＯ基とＯＨ基との当量比（ＮＣＯ基／ＯＨ基）が１．５〜２．０となるように反応させて得られるイソシアネート基末端プレポリマーを含む、地山固結剤。【選択図】なし
GROUND CONSOLIDATION AGENT AND GROUND CONSOLIDATION METHOD USING THE SAME
To provide a ground consolidation agent capable of foaming and hardening the ground to develop sufficient strength without intentionally leaving diphenylmethane diisocyanate.SOLUTION: A ground consolidation agent comprises a component (A) containing an active hydrogen compound, a catalyst and water, and a component (B) containing an isocyanate compound. The active hydrogen compound contains an aromatic amine compound. The isocyanate compound contains an isocyanate group-terminated prepolymer obtained by reacting diphenylmethane diisocyanate and a polyether polyol so that the equivalent ratio of NCO group and OH group (NCO group/OH group) is 1.5 to 2.0.SELECTED DRAWING: None
【課題】意図的にジフェニルメタンジイソシアネートを残存させることなく、発泡硬化して十分な強度を発現することができる地山固結剤を提供する。【解決手段】活性水素化合物、触媒および水を含む（Ａ）成分と、イソシアネート化合物を含む（Ｂ）成分と、を備え、前記活性水素化合物は、芳香族アミン化合物を含み、前記イソシアネート化合物は、ジフェニルメタンジイソシアネートとポリエーテルポリオールとを、ＮＣＯ基とＯＨ基との当量比（ＮＣＯ基／ＯＨ基）が１．５〜２．０となるように反応させて得られるイソシアネート基末端プレポリマーを含む、地山固結剤。【選択図】なし
GROUND CONSOLIDATION AGENT AND GROUND CONSOLIDATION METHOD USING THE SAME
地山固結剤およびそれを用いた地山の固結方法
YAMADA TORU (author) / KITAGAWA TAKASHI (author) / MIYA YOJI (author) / HIROTA JUNICHI (author)
2021-08-05
Patent
Electronic Resource
Japanese
IPC:
E21D
SHAFTS
,
Schächte
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
E02D
FOUNDATIONS
,
Gründungen
GROUND CONSOLIDATION MATERIAL AND GROUND IMPROVEMENT METHOD
| European Patent Office | 2022
Chemical consolidation of ground
| Engineering Index Backfile | 1940