FIELD: chemistry.
SUBSTANCE: invention relates to the industry of construction materials and specifically to making concrete wall blocks for low-height construction. The concrete mixture contains the following in wt %: portland cement 22.0-24.0, expanded clay with particle size 10-20 mm 46.0-48.0, haydite sand 6.0-8.0, 3-20 mm long pieces of fibre 0.8-1.2, superplasticiser S-3 0.8-1.2, water 20.0-22.0.
EFFECT: high strength of articles made from the concrete mixture.
1 tbl
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