| 摘要 |
FIELD: construction.SUBSTANCE: ceramic mass for making wall items, preferably ceramic bricks, comprises clayey raw materials with content of aluminium oxide 7.8-9.9%, activated carbonate-siliceous zeolyte-containing rock and additionally small-sized swollen vermiculite, produced from small-sized particles of vermiculite field dumps with the ratio of silicon dioxide to aluminium oxide 3.9:1, at the following ratio of components, wt %: clayey materials with content of aluminium oxide below 10% 43-51; activated carbonate-siliceous zeolyte-containing rock 42-50; small-sized swollen vermiculite produced from small-sized particles of vermiculite field dumps with the ratio of silicon dioxide to aluminium oxide 3.9:1 7-9.EFFECT: increased compression strength and reduced volume weight of finished goods, expansion of mineral raw base.4 tbl |
