A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT-BASED LOW-VISCOSITY RAPID HARDENING GROUT MATERIAL
PROBLEM TO BE SOLVED: To provide a cement-based low-viscosity rapid hardening grout material, in which, even when being filled into a gap of, for example, 3 cm or less, material separation hardly occurs, and a gap hardly occurs on the upper part of a hardened body of the cement-based grout material after curing, and more specifically, to provide a cement-based low-viscosity rapid hardening grout material, in which, even when being filled into a nonwoven fabric flat container arranged in a gap of, for example, 3 cm or less in height direction, material separation hardly occurs, and a gap hardly occurs on the upper part of a hardened body of the cement-based grout material after curing thereof.MEANS: The cement-based low-viscosity rapid hardening grout material comprises cement, calcium aluminates, gypsums, fine aggregates, an alkali metal carbonate, a retarder, and a water-reducing admixture, has a flow-down time from immediately after mixing with water to 10 minutes thereafter of 7-15 seconds as measured by using a J funnel, and has compression strength of 3 N/mmor more at a material age of 30 minutes. Further, each material is preferably in a respective specific range.SELECTED DRAWING: None
【課題】例えば３ｃｍ以下の隙間に充填する場合であっても、材料分離を起こし難く、また硬化後にセメント系グラウト材の硬化体の上部に隙間が発生し難いセメント系低粘性速硬グラウト材を提供すること。より詳しくは、例えば高さ方向３ｃｍ以下の隙間に、配置した不織布製扁形容器内に充填する場合であっても、材料分離を起こし難く、また硬化後にセメント系グラウト材の硬化体の上部に隙間が発生し難いセメント系低粘性速硬グラウト材を提供すること。【手段】セメント、カルシウムアルミネート類、石膏類、細骨材、アルカリ金属炭酸塩、遅延剤及び減水剤を含有し、水との混練直後から１０分後までのＪ漏斗を用いた流下時間が７〜１５秒であり、且つ、材齢３０分における圧縮強度が３Ｎ／ｍｍ２以上であることを特徴とするセメント系低粘性速硬グラウト材。更に、各材料が各々特定の範囲内であると好適である。【選択図】なし
CEMENT-BASED LOW-VISCOSITY RAPID HARDENING GROUT MATERIAL
PROBLEM TO BE SOLVED: To provide a cement-based low-viscosity rapid hardening grout material, in which, even when being filled into a gap of, for example, 3 cm or less, material separation hardly occurs, and a gap hardly occurs on the upper part of a hardened body of the cement-based grout material after curing, and more specifically, to provide a cement-based low-viscosity rapid hardening grout material, in which, even when being filled into a nonwoven fabric flat container arranged in a gap of, for example, 3 cm or less in height direction, material separation hardly occurs, and a gap hardly occurs on the upper part of a hardened body of the cement-based grout material after curing thereof.MEANS: The cement-based low-viscosity rapid hardening grout material comprises cement, calcium aluminates, gypsums, fine aggregates, an alkali metal carbonate, a retarder, and a water-reducing admixture, has a flow-down time from immediately after mixing with water to 10 minutes thereafter of 7-15 seconds as measured by using a J funnel, and has compression strength of 3 N/mmor more at a material age of 30 minutes. Further, each material is preferably in a respective specific range.SELECTED DRAWING: None
【課題】例えば３ｃｍ以下の隙間に充填する場合であっても、材料分離を起こし難く、また硬化後にセメント系グラウト材の硬化体の上部に隙間が発生し難いセメント系低粘性速硬グラウト材を提供すること。より詳しくは、例えば高さ方向３ｃｍ以下の隙間に、配置した不織布製扁形容器内に充填する場合であっても、材料分離を起こし難く、また硬化後にセメント系グラウト材の硬化体の上部に隙間が発生し難いセメント系低粘性速硬グラウト材を提供すること。【手段】セメント、カルシウムアルミネート類、石膏類、細骨材、アルカリ金属炭酸塩、遅延剤及び減水剤を含有し、水との混練直後から１０分後までのＪ漏斗を用いた流下時間が７〜１５秒であり、且つ、材齢３０分における圧縮強度が３Ｎ／ｍｍ２以上であることを特徴とするセメント系低粘性速硬グラウト材。更に、各材料が各々特定の範囲内であると好適である。【選択図】なし
CEMENT-BASED LOW-VISCOSITY RAPID HARDENING GROUT MATERIAL
セメント系低粘性速硬グラウト材
AKAE SHINYA (author)
2017-10-05
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
RAPID-HARDENING GROUT COMPOSITION AND RAPID-HARDENING GROUT MATERIAL
| European Patent Office | 2021
ULTRA RAPID HARDENING GROUT MATERIAL, ULTRA RAPID HARDENING GROUT MORTAR, AND HARDENED BODY
| European Patent Office | 2022