This invention discloses a
casting technology for concrete components with self-decorative surfaces, belonging to the field of concrete component preparation technology. The technology comprises three core components: a mold (slab),
colored concrete, and ordinary concrete. The mold (slab) can be customized in size, material, planar style, and
surface pattern according to actual needs. The
colored concrete is composed of white
cement, natural
colored sand,
quartz sand, pigments, and necessary additives. During construction, the mold (slab) is first erected. The colored concrete is applied to the vertical or bottom surface of the mold (slab) corresponding to the concrete component's decorative surface by spraying or smearing, with a
layer thickness of not less than 5 mm. After the colored concrete has settled and stabilized, ordinary concrete is poured into the mold (slab) before its initial setting period, forming a double-layer structure with the colored concrete layer on the outside and the ordinary concrete layer on the inside. Subsequent compaction and curing are performed according to standard concrete
casting processes to obtain the concrete component with a self-decorative surface. This invention eliminates the need for secondary decoration after the traditional component
casting process, and has the advantages of saving time, materials, labor and money. It can be widely used in the casting construction of concrete components that require decoration, such as beams,
eaves, platforms, retaining walls, fences and bridges.