| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to industry of construction materials. Concrete mixture contains, pwts.wt: portland cement 21.45; quartz sand 64.23-66.63; polypropylene pipes sliced into rings and/or semi-rings with thickness 3±1 mm with diameter 20 mm or 32 mm 0.8-3.2; water 11.105.EFFECT: high strength of concrete.1 cl, 1 tbl |
