| 摘要 |
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, wt %: portland cement 23.0-25.0, expanded clay with grain size of 10-20 mm 23.4-27.0, haydite sand 20.0-24.0, expanded-clay dust 3.0-4.0, superplasticiser S-3 1.0-1.6, water 23.0-25.0.EFFECT: high frost resistance of articles made from the concrete mixture.1 tbl |
