A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INJECTION MATERIAL FOR SEMI-FLEXIBLE PAVEMENT
To provide an injection material for semi-flexible pavements, which exhibits small variation in setting time due to temperature environment and small change in properties over time and has a wide temperature range and long time for efficient injection into gaps of open-graded asphalt paving mixtures.SOLUTION: An injection material for semi-flexible pavements is prepared by mixing cement, a quick-curing admixture, a fine aggregate, tartaric acid, sodium carbonate, alum, and water in a predetermined ratio, wherein: a molar ratio of a content of total SO3 to the content of total Al2O3 is within a range of 1.0 to 1.4; and viscosity immediately after preparation at an ambient temperature of 20°C is within a range of 150 mPa_s or more and 450 mPa_s or less.SELECTED DRAWING: None
【課題】温度環境による凝結時間の変動が小さく、性状の経時変化が小さく、開粒度アスファルト混合物の空隙に効率よく注入できる温度範囲が広く、かつ時間が長い半たわみ舗装用注入材を提供する。【解決手段】セメントと、速硬性混和材と、細骨材と、酒石酸と、炭酸ナトリウムと、ミョウバンと、水とを、所定の割合で練り混ぜて調製した半たわみ舗装用注入材であって、全Ａｌ２Ｏ３の含有量に対する全ＳＯ３の含有量のモル比が１．０以上１．４以下の範囲内にあり、環境温度２０℃における調製直後の粘度が１５０ｍＰａ・ｓ以上４５０ｍＰａ・ｓ以下の範囲内にある半たわみ舗装用注入材。【選択図】なし
INJECTION MATERIAL FOR SEMI-FLEXIBLE PAVEMENT
To provide an injection material for semi-flexible pavements, which exhibits small variation in setting time due to temperature environment and small change in properties over time and has a wide temperature range and long time for efficient injection into gaps of open-graded asphalt paving mixtures.SOLUTION: An injection material for semi-flexible pavements is prepared by mixing cement, a quick-curing admixture, a fine aggregate, tartaric acid, sodium carbonate, alum, and water in a predetermined ratio, wherein: a molar ratio of a content of total SO3 to the content of total Al2O3 is within a range of 1.0 to 1.4; and viscosity immediately after preparation at an ambient temperature of 20°C is within a range of 150 mPa_s or more and 450 mPa_s or less.SELECTED DRAWING: None
【課題】温度環境による凝結時間の変動が小さく、性状の経時変化が小さく、開粒度アスファルト混合物の空隙に効率よく注入できる温度範囲が広く、かつ時間が長い半たわみ舗装用注入材を提供する。【解決手段】セメントと、速硬性混和材と、細骨材と、酒石酸と、炭酸ナトリウムと、ミョウバンと、水とを、所定の割合で練り混ぜて調製した半たわみ舗装用注入材であって、全Ａｌ２Ｏ３の含有量に対する全ＳＯ３の含有量のモル比が１．０以上１．４以下の範囲内にあり、環境温度２０℃における調製直後の粘度が１５０ｍＰａ・ｓ以上４５０ｍＰａ・ｓ以下の範囲内にある半たわみ舗装用注入材。【選択図】なし
INJECTION MATERIAL FOR SEMI-FLEXIBLE PAVEMENT
半たわみ舗装用注入材
KIMOTO DAISUKE (author) / TAWARA HIDEO (author) / ISHIKUMA HARUKI (author)
2023-10-11
Patent
Electronic Resource
Japanese
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