Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONCRETE EXPANSION JOINTS ARE DRINKING USING THE SAME COMPOSITION AND CONCRETE EXPANSION JOINTS REPAIR METHOD
The present invention relates to a joint composition for expansion joints of a concrete construction with excellent elasticity and durability, and a method for repairing expansion joints of a concrete construction using the same. The joint composition comprises: 5-95 wt% of a performance enhancing polymer admixture; and 5-95 wt% of a filler. The performance enhancing polymer admixture consists of: 40-98 wt% of polyurethane-acrylate; 1-30 wt% of acrylonitrile butadiene; 0.1-25 wt% of polyol; 0.1-25 wt% of methyl methacrylate-styrene; 0.1-20 wt% of silicon; 0.1-20 wt% of methyl methacrylate-butadiene; 0.01-15 wt% of polypyromellitamide; 0.01-5 wt% of dibutyltin diacetate; and 0.01-5 wt% of triphenylstibine. According to the present invention, the joint composition is excellent in tensile strength and ratio of expansion and contraction, thereby preventing the length of a concrete construction from minutely changing according to a change of ambient temperature by being expanded and shrunk by heat. In addition, the present invention prevents the penetration of rain or foreign matter through integrative behavior with a bridge or a concrete construction, thus minimizes the occurrence of damage to the expansion joints.
CONCRETE EXPANSION JOINTS ARE DRINKING USING THE SAME COMPOSITION AND CONCRETE EXPANSION JOINTS REPAIR METHOD
The present invention relates to a joint composition for expansion joints of a concrete construction with excellent elasticity and durability, and a method for repairing expansion joints of a concrete construction using the same. The joint composition comprises: 5-95 wt% of a performance enhancing polymer admixture; and 5-95 wt% of a filler. The performance enhancing polymer admixture consists of: 40-98 wt% of polyurethane-acrylate; 1-30 wt% of acrylonitrile butadiene; 0.1-25 wt% of polyol; 0.1-25 wt% of methyl methacrylate-styrene; 0.1-20 wt% of silicon; 0.1-20 wt% of methyl methacrylate-butadiene; 0.01-15 wt% of polypyromellitamide; 0.01-5 wt% of dibutyltin diacetate; and 0.01-5 wt% of triphenylstibine. According to the present invention, the joint composition is excellent in tensile strength and ratio of expansion and contraction, thereby preventing the length of a concrete construction from minutely changing according to a change of ambient temperature by being expanded and shrunk by heat. In addition, the present invention prevents the penetration of rain or foreign matter through integrative behavior with a bridge or a concrete construction, thus minimizes the occurrence of damage to the expansion joints.
CONCRETE EXPANSION JOINTS ARE DRINKING USING THE SAME COMPOSITION AND CONCRETE EXPANSION JOINTS REPAIR METHOD
CHOI YONG SUN (Autor:in) / KIM DONG SEOK (Autor:in) / JOO MYUNG KI (Autor:in)
16.09.2015
Patent
Elektronische Ressource
Koreanisch
IPC:
C04B
Kalk
,
LIME
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