CLAY-PHOSPHATE MATERIAL Russian patent published in 2010 - IPC C04B28/34 

FIELD: chemistry.

SUBSTANCE: invention relates to building materials and can be used in grouting in industrial and civil construction. The clay-phosphate material which contains loam, iron-bearing wastes from metallurgical production with 5…7% residual on sieve No.008 which contains iron (II) oxide, orthophosphoric acid with density of 1.25 g/cm³, also contains sludge from cleaning pipes and storage containers of petroleum products, containing the following in wt %: petroleum products 78, water 6, suspended substances 16, with the following ratio of components, wt %: loam 44…46, said wastes 12…13, said sludge 13…14, orthophosphoric acid with density of 1.25 g/cm³ - the rest.

EFFECT: slower setting.

1 ex,1 tbl