A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RAPID-HARDENING GROUT COMPOSITION AND RAPID-HARDENING GROUT MATERIAL
To provide a rapid-hardening grout composition and a rapid-hardening grout material, in which excellent flowability and workability are ensured and which are excellent in rapid-hardening properties and strength developability.SOLUTION: A rapid-hardening grout composition comprises: a binder comprising a cement, calcium aluminates, and gypsums; and a water-reducing agent, wherein: a Blaine specific surface area of the gypsums is 5,000-17,000 cm2/g; and the water-reducing agent comprises at least a polycarboxylic acid-based water-reducing agent and a naphthalenesulfonic acid-based water-reducing agent.SELECTED DRAWING: None
【課題】良好な流動性及び作業性を確保し、且つ、速硬性及び強度発現性に優れる速硬性グラウト組成物及び速硬性グラウト材を提供すること。【解決手段】セメント、カルシウムアルミネート類及び石膏類からなる結合材と、減水剤とを含有し、石膏類のブレーン比表面積が５０００〜１７０００ｃｍ２／ｇであり、減水剤が、少なくとも、ポリカルボン酸系減水剤及びナフタレンスルホン酸系減水剤を含む、速硬性グラウト組成物。【選択図】なし
RAPID-HARDENING GROUT COMPOSITION AND RAPID-HARDENING GROUT MATERIAL
To provide a rapid-hardening grout composition and a rapid-hardening grout material, in which excellent flowability and workability are ensured and which are excellent in rapid-hardening properties and strength developability.SOLUTION: A rapid-hardening grout composition comprises: a binder comprising a cement, calcium aluminates, and gypsums; and a water-reducing agent, wherein: a Blaine specific surface area of the gypsums is 5,000-17,000 cm2/g; and the water-reducing agent comprises at least a polycarboxylic acid-based water-reducing agent and a naphthalenesulfonic acid-based water-reducing agent.SELECTED DRAWING: None
【課題】良好な流動性及び作業性を確保し、且つ、速硬性及び強度発現性に優れる速硬性グラウト組成物及び速硬性グラウト材を提供すること。【解決手段】セメント、カルシウムアルミネート類及び石膏類からなる結合材と、減水剤とを含有し、石膏類のブレーン比表面積が５０００〜１７０００ｃｍ２／ｇであり、減水剤が、少なくとも、ポリカルボン酸系減水剤及びナフタレンスルホン酸系減水剤を含む、速硬性グラウト組成物。【選択図】なし
RAPID-HARDENING GROUT COMPOSITION AND RAPID-HARDENING GROUT MATERIAL
速硬性グラウト組成物及び速硬性グラウト材
NAKAHARA KAZUHIKO (author)
2021-09-24
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
ULTRA RAPID HARDENING GROUT MATERIAL, ULTRA RAPID HARDENING GROUT MORTAR, AND HARDENED BODY
| European Patent Office | 2022
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