A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXPANSIVE ADMIXTURE
To provide an expansive admixture exhibiting early strength manifestation while maintaining its excellent expansion performance.SOLUTION: The expansive admixture includes 30 to 55 mass% of an expansive composition, 25 to 60 mass% of gypsum, and 10 to 30 mass% of calcium aluminate. The expansive admixture further includes one species or at least two species of metal salts selected from the group consisting of: an alkali metal sulfate such as sodium sulfate and potassium sulfate; an alkali metal carbonate such as lithium carbonate, sodium carbonate, and potassium carbonate; calcium nitrate; calcium nitrite; and aluminum sulfate.SELECTED DRAWING: None
【課題】良好な膨張性能を確保しつつ、早期強度発現性が得られる膨張性混和材を提供することである。【解決手段】膨張性組成物を３０～５５質量％、石膏類を２５～６０質量％、カルシウムアルミネートを１０～３０質量％含む膨張性混和材。さらに、硫酸ナトリウム、硫酸カリウム等のアルカリ金属硫酸塩、炭酸リチウム、炭酸ナトリウム、炭酸カリウム等のアルカリ金属炭酸塩、硝酸カルシウム、亜硝酸カルシウム及び硫酸アルミニウムから選ばれる１種または２種以上の金属塩を含む膨張性混和材。【選択図】なし
EXPANSIVE ADMIXTURE
To provide an expansive admixture exhibiting early strength manifestation while maintaining its excellent expansion performance.SOLUTION: The expansive admixture includes 30 to 55 mass% of an expansive composition, 25 to 60 mass% of gypsum, and 10 to 30 mass% of calcium aluminate. The expansive admixture further includes one species or at least two species of metal salts selected from the group consisting of: an alkali metal sulfate such as sodium sulfate and potassium sulfate; an alkali metal carbonate such as lithium carbonate, sodium carbonate, and potassium carbonate; calcium nitrate; calcium nitrite; and aluminum sulfate.SELECTED DRAWING: None
【課題】良好な膨張性能を確保しつつ、早期強度発現性が得られる膨張性混和材を提供することである。【解決手段】膨張性組成物を３０～５５質量％、石膏類を２５～６０質量％、カルシウムアルミネートを１０～３０質量％含む膨張性混和材。さらに、硫酸ナトリウム、硫酸カリウム等のアルカリ金属硫酸塩、炭酸リチウム、炭酸ナトリウム、炭酸カリウム等のアルカリ金属炭酸塩、硝酸カルシウム、亜硝酸カルシウム及び硫酸アルミニウムから選ばれる１種または２種以上の金属塩を含む膨張性混和材。【選択図】なし
EXPANSIVE ADMIXTURE
膨張性混和材
MARUTA HIROSHI (author) / TAKESHITA EIZO (author) / NAGASHIO SEISUKE (author)
2023-05-16
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2019