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A platform for research: civil engineering, architecture and urbanism
HIGHLY DURABLE GROUT COMPOSITION
To provide a highly durable grout composition that is small in dry shrinkage and difficult to cause crack, is excellent in adhesiveness, strength characteristics, neutralization resistance, and salt blocking property, and is excellent as a grout material for cross section repair.SOLUTION: The problem can be solved when a grout composition contains an aggregate having specific particle sizes (particle size 1.2 to 3.0 mm, particle size 0.6 to 1.2 mm and particle size 0.6 mm or smaller) at a specific ratio, furthermore, contains cement, a water-reducing agent, a thickener and aggregate, in which a mass ratio of the aggregate cement and a mass ratio of powder and liquid are set to specific ratios. It is preferable to contain a polymer dispersion at a specific ratio of powder mass. Furthermore, it is preferable to contain fly ash at a specific ratio in the powder. Still furthermore, it is preferable to contain a specific admixture.SELECTED DRAWING: None
【課題】乾燥収縮が小さくひび割れが発生し難く、付着性，強度特性，中性化抵抗性及び遮塩性に優れ、断面修復用グラウト材として優れる高耐久性グラウト組成物を提供すること。【解決手段】特定粒度（粒径１．２〜３．０mm、粒径０．６〜１．２mm及び粒径０．６mm以下）の骨材を特定割合含み、更に、セメント、減水剤、増粘剤及び骨材を含み、骨材セメントの質量比率及び粉体と液体の質量比率が特定割合とすることで解決する。ポリマーディスパージョンを粉体質量の特定割合含有すると好適である。また、粉体中にフライアッシュを特定割合含有すると好適である。また、特定の混和材料を含有すると好適である。【選択図】なし
HIGHLY DURABLE GROUT COMPOSITION
To provide a highly durable grout composition that is small in dry shrinkage and difficult to cause crack, is excellent in adhesiveness, strength characteristics, neutralization resistance, and salt blocking property, and is excellent as a grout material for cross section repair.SOLUTION: The problem can be solved when a grout composition contains an aggregate having specific particle sizes (particle size 1.2 to 3.0 mm, particle size 0.6 to 1.2 mm and particle size 0.6 mm or smaller) at a specific ratio, furthermore, contains cement, a water-reducing agent, a thickener and aggregate, in which a mass ratio of the aggregate cement and a mass ratio of powder and liquid are set to specific ratios. It is preferable to contain a polymer dispersion at a specific ratio of powder mass. Furthermore, it is preferable to contain fly ash at a specific ratio in the powder. Still furthermore, it is preferable to contain a specific admixture.SELECTED DRAWING: None
【課題】乾燥収縮が小さくひび割れが発生し難く、付着性，強度特性，中性化抵抗性及び遮塩性に優れ、断面修復用グラウト材として優れる高耐久性グラウト組成物を提供すること。【解決手段】特定粒度（粒径１．２〜３．０mm、粒径０．６〜１．２mm及び粒径０．６mm以下）の骨材を特定割合含み、更に、セメント、減水剤、増粘剤及び骨材を含み、骨材セメントの質量比率及び粉体と液体の質量比率が特定割合とすることで解決する。ポリマーディスパージョンを粉体質量の特定割合含有すると好適である。また、粉体中にフライアッシュを特定割合含有すると好適である。また、特定の混和材料を含有すると好適である。【選択図】なし
HIGHLY DURABLE GROUT COMPOSITION
高耐久性グラウト組成物
TAKESHITA EIZO (author) / NAGAI YOSHINORI (author)
2020-10-01
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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