FIELD: chemistry.
SUBSTANCE: invention relates to construction materials, to production of light well cement for moderate temperatures. In the method of producing cement, which involves drying silica sedimentary rocks - gaise, tripoli, diatomite, mixing and grinding with portland cement clinker and gypsum, the said drying is carried out at temperature 150-190°C until achieving moisture of 0.3-0.7%. Before grinding, a carbon-containing component is added in amount of 0.2-0.4% carbon.
EFFECT: improved strength properties of the cement owing to activation of hydroxyl group (-OH) centres of the silica sedimentary rocks.
2 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
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