FIELD: chemistry.
SUBSTANCE: invention relates to construction materials and can be used for manufacturing products from fine-grain cement, both in civil and in industrial construction. Fine-grain cement is obtained from mixture, which contains Portland cement, fractioned quartz sand with coarseness module 2.7-3.2, ground quartz sand with specific surface Ssp=500-700 m/kg, hyperplasticiser "Melflux 265IF" and defoaming agent TSOP, with the following component ratio, wt %: Portland cement 16.0-22.0, quartz sand 69.4-75.9, ground quartz sand 1.6-2.2, hyperplasticiser "Melflux 265IF" 0.08-0.12, defoaming agent TSOP - 0.016-0.022, water the remaining part.
EFFECT: increase of mobility and reduction of air involvement of cement mixture, increase of cement compression resistance at design age.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| FINE-GRAIN CONCRETE | 2011 |
|
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| HIGH-STRENGTH FINE GRAIN CONCRETE ON COMPOSITE BINDER BASIS WITH APPLICATION OF TECHNOGENIC RAW MATERIAL | 2016 |
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| HIGH STRENGTH SELF-COMPACTING FINE GRAIN CONCRETE | 2022 |
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| HIGH-STRENGTH POWDER-ACTIVATED CONCRETE | 2020 |
|
RU2738150C1 |
| SELF-LAYING CONCRETE | 2018 |
|
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| FINE-GRAINED CONCRETE MIXTURE | 2017 |
|
RU2649996C1 |
