| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to industry of construction materials, in particular, to production of concrete wall blocks for low-rise construction. Concrete mixture includes, wt %: Portland cement 22-24; expanded clay gravel of 20-40 mm fraction 45.07-51.05; expanded clay sand of fraction to 5 mm 4-6; saponified rosin 0.03-0.05; superplasticiser C-3 0.3-0.4; 5-10 mm long asbestos fibre; 10-20 mm long polycaprolactam fibre 0.2-0.3; water 22-24.EFFECT: increased strength.1 tbl; |
