FIELD: chemical technology. SUBSTANCE: proposed material contains (mass ): clay 50-62, limestone 15-25, 60 solution of phosphoric acid the rest. Strength of proposed material after 1, 3, 7 and 28 days is 28-35, 37-40, 44-46, and 50-58 MPa respectively. EFFECT: increases strength of desired material. 2 tbl
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Authors
Dates
1995-06-27—Published
1991-07-04—Filed