MULTI ZONE CEMENTITIOUS PRODUCT AND METHOD

摘要

A multi-zone cementitious product, which includes a base zone made of a first cementitious material composition and forming a portion of the product. At least one facing zone is adjacent to and bonded to the base zone, the facing zone made of a second cementitious material composition and forming at least one exterior face of said product which is visible when the product is installed. A disrupted boundary layer is between the facing zone and the base zone, and includes material from both the facing zone and the base zone. The disrupted boundary layer bonds the facing zone to the base zone. The facing zone has a thickness sufficient to prevent the base zone from being visible when the product is installed.

主权项

1. A machine for molding a multi-zone cementitious product comprising:
a hopper having a plurality of hopper sections, each section capable of containing cementitious material; a mold having at least one mold cavity; a feed carriage having a plurality of feed carriage cavities, at least some of the carriage cavities corresponding to at least some of the hopper sections, the feed carriage being capable of being selectively aligned with the hopper and the mold; and the feed carriage further including at least one mold zone separator to guide material from the feed carriage to particular locations within the mold cavity as material is transferred from the feed carriage into the mold cavity.