| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to construction, namely, to methods and devices for production of decorative blocks. Proposed method comprises preparing, at least, two fine-grained concrete mixes of different colour, filling the envelopes with, at least, one mix, placing them in another mix, compacting, hardening and mechanical processing. Envelopes are made from water soluble polymers that decompose in concrete mixes before hardening.EFFECT: lower labour input.7 cl, 4 ex |
