| 摘要 |
FIELD: building materials and industry. ^ SUBSTANCE: invention relates to compositions of cements and can be used in preparing novel species of cements used in building. Proposed cement containing mineral additives comprises Portland cement clinker, gypsum dihydrate and magnesium-silicate mountain rock wehrlite in the following ratio of components, wt.-%: wehrlite, 25-30; Portland cement clinker, 70-75, and gypsum dihydrate, 2 of mass of mixture of wehrlite and Portland cement. Cement is prepared by combined grinding in a core-type vibration device for 10 min. Invention provides enhancing strength and decreasing cost of cement. ^ EFFECT: improved and valuable properties of cement. ^ 3 tbl, 5 ex |
