| 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; claydite with particle size of 10-20 mm 24.5-29.0; haydite sand 6.0-8.0; quartz sand 18.0-22.0; sodium ethyl siliconate or sodium methyl siliconate 1.0-1.5; water 23.0-25.0.EFFECT: high frost resistance of articles made from the concrete mixture.1 tbl |
