C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 28/04 (2006.01) C04B 7/02 (2006.01) C04B 18/02 (2006.01) C04B 24/26 (2006.01) C04B 24/28 (2006.01) C04B 24/32 (2006.01) C04B 24/38 (2006.01) C04B 38/00 (2006.01)
Patent
CA 2358679
A cement composition for liquid casting, based on a binder comprising Portland cement and additives comprising at least a fluidizer and a combination of a thickening agent acting by steric exclusion and a gelling thickening agent. The composition can also include a surface active agent to regulate the quantity of entrained air. Mixed with water and an aggregate, it permits obtaining, in a single casting, a self-leveling casting of a high thickness (equal to at least 6 cm) and of low density (about 1.6 to 1.9).
L'invention concerne une composition cimentaire pour chape liquide à base de liant comprenant du ciment Portland et d'adjuvants comprenant au moins un fluidifiant et une combinaison d'un agent épaississant agissant par exclusion stérique et d'un agent épaississant de type gélifiant. La composition peut aussi renfermer un tensio- actif pur réguler la quantité d'air entraîné. Additionnée d'eau et mélangée à un agrégat, elle permet d'obtenir, en un seul coulage, une chape autonivelante d'épaisseur importante (>= 6 cm) et de faible densité (1,6 à 1,9 environ).
Ambroise Jean
Colombet Pierre
Grelaud Jean-Pierre
Pasquier Michel
Ciments Francais
Robic
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