| 摘要 |
The invention relates to the building materials, namely to a dry building mix, which may be used for preparation of plaster mortars and for production of concrete articles. Summary of the invention consists in that the mix includes cement, sand, polymineral waste, obtained as a result of water softening at the TEP in the following ratio, % by weight: cement 16,7...40,0sand 20,0...80,0polymal waste 3,3...40,0The polymineral waste include the following components, % by weight:CaCO3 73...86,6Mg(OH)2 3,6...9,5Fe(OH)3 1,7...6,8 2,7...7,5with the following granulometric connt, % by weight, according to the dispersion degree (cm-1):fraction 500...1408 5...25fraction > 155 75...95.Claims: 3
|
