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DECORATIVE, PRECAST, CEMENTITIOUS STRUCTURE HAVING A MICRO-TEXTURED, LASER-ENGRAVED, FRONT SURFACE
DECORATIVE, PRECAST, CEMENTITIOUS STRUCTURE HAVING A MICRO-TEXTURED, LASER-ENGRAVED, FRONT SURFACE
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机译:具有微纹理,激光刻蚀的前表面的装饰性,预制,胶结结构
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摘要
A decorative, precast, cementitious structure is provided. The structure comprises a cementitious composition comprised of a cement and an aggregate substantially homogeneously distributed through the composition. The structure has a relatively smooth front surface with a micro-textured region engraved by a laser beam having energy which is absorbed by a void-free front surface layer of the structure to at least initiate ablation of the material of the surface layer at a pattern of predetermined locations on the front surface to form the micro-textured region.
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