| 摘要 |
FIELD: grouting mortars used in grouting of rocks, repairs and construction jobs in strengthening of structures and tunneling. SUBSTANCE: grouting mortar contains, wt.%: cement dust with specific surface of 900-2000 sq. m/kg, 15-30; microsilicon with specific surface of 900-2000 sq.m/kg, 2-10; superplasticizer S-3, 0.3-0.6; water, the balance. EFFECT: higher stability of properties of mortar and lowered prices of production of highly permeable grouting mortars.
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