| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to construction, namely, to methods and devices for production of construction blocks. Method of making concrete product with flat top surface by extrusion of concrete mix, article top surface is formed by profiling device with ridged profile for sand particles sizing and fluted profile. Smoothing device is used to smooth bulges formed by fluted profile to make cover layer.EFFECT: higher surface quality.13 cl, 10 dwg |
