| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to compositions for making concrete and can be used in making wall blocks and panels from the said blocks. The heavy concrete which is made from composite binder, coarse and fine filler and water contains a composite binder additive in form of magnesium silicate ore - wehrlite with the following ratio of components of the binder, in wt %: wehrlite 20, calcium sulphate dihydrate 3, portland cement clinker 77. The coarse filler used is crushed wehrlite and the fine filler used is dunite sand with the following ratio of components, in wt %: composite binder 16.0, dunite sand 34.0, crushed wehrlite 42.0, water 8.0. ^ EFFECT: increased strength of heavy concrete. ^ 4 tbl, 4 ex |
