| 摘要 |
An apparatus for modifying the appearance of a surface--texture of cementitious blocks. The apparatus comprises a container , a movement imparting device and at least one block-immobilizing device. The container comprises block-receiving areas for receiving blocks. The movement imparting device imparts a movement to the container. The block-immobilizing device immobilizes the blocks on a given block--receiving area the during movement of the container. When introducing an impacting material in the container and imparting a movement to the container, the impacting material is caused to so impact the cementitious blocks as to modify the appearance of the surface texture thereof so as to artificially age these blocks. A vacuum device and a clamping device are also disclosed as block-immobilizing devices. Also disclosed herein is a method for modifying the appearance of a surface-texture of cementitious blocks so as to artificially age these blocks.
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