Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement composition additive comprising cross-linked polycarboxylic acid-based copolymer, and cement composition comprising same
The present invention relates to an additive for a cement composition, comprising a cross-linked polycarboxylic acid-based copolymer, and to a cement composition comprising same. More particularly, the present invention relates to an additive for a cement composition and to a cement composition comprising same, the additive comprising a polycarboxylic acid-based copolymer and/or the salts thereof, the polycarboxylic acid-based copolymer being the copolymer of a monomer mixture containing an alkoxy polyalkylene glycol mono(meth)acrylic acid ester-based monomer and a (meth)acrylic acid-based monomer and 5 to 20 alkylene oxide groups, the copolymer of the monomer mixture comprising a cross-linking agent having two or more acrylate groups or vinyl groups. The cement composition additive comprising the cross-linked polycarboxylic acid-based copolymer according to the present invention may regulate a cross-linking structure so as to improve the initial water-reducing ability and retentivity of the cement composition, thus enabling the cement composition to have superior workability over a long period of time.
Cement composition additive comprising cross-linked polycarboxylic acid-based copolymer, and cement composition comprising same
The present invention relates to an additive for a cement composition, comprising a cross-linked polycarboxylic acid-based copolymer, and to a cement composition comprising same. More particularly, the present invention relates to an additive for a cement composition and to a cement composition comprising same, the additive comprising a polycarboxylic acid-based copolymer and/or the salts thereof, the polycarboxylic acid-based copolymer being the copolymer of a monomer mixture containing an alkoxy polyalkylene glycol mono(meth)acrylic acid ester-based monomer and a (meth)acrylic acid-based monomer and 5 to 20 alkylene oxide groups, the copolymer of the monomer mixture comprising a cross-linking agent having two or more acrylate groups or vinyl groups. The cement composition additive comprising the cross-linked polycarboxylic acid-based copolymer according to the present invention may regulate a cross-linking structure so as to improve the initial water-reducing ability and retentivity of the cement composition, thus enabling the cement composition to have superior workability over a long period of time.
Cement composition additive comprising cross-linked polycarboxylic acid-based copolymer, and cement composition comprising same
KO CHANG-BUM (Autor:in) / KIM YOUNG-MIN (Autor:in) / KIM IMGYU (Autor:in)
29.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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