CPC C04B 16/0641 (2013.01) [C04B 14/043 (2013.01); C04B 14/062 (2013.01); C04B 14/106 (2013.01); C04B 14/18 (2013.01); C04B 14/20 (2013.01); C04B 16/0633 (2013.01); C04B 28/02 (2013.01); C04B 28/04 (2013.01); C04B 40/0064 (2013.01); E04C 2/06 (2013.01); E04F 15/10 (2013.01); C04B 2103/54 (2013.01); C04B 2111/00405 (2013.01); C04B 2111/27 (2013.01); C04B 2111/60 (2013.01); C04B 2111/82 (2013.01)] | 16 Claims |
1. An air-cured fiber cement product comprising cement and fibers, wherein:
said fiber cement product comprises amorphous silica in an amount of between 4 weight % and 15 weight % compared to the total dry weight of the fiber cement composition of said fiber cement product;
said fiber cement product further comprises a hydrophobic agent;
said fibers comprise synthetic fibers;
comprising on at least part of its outer surface one or more coating layers; and
said one or more coating layers comprise first a coating, which is a primer layer and a second coating chosen from the group of a waterborne acrylic top coat layer and a waterglass based coating.
|