FIELD: chemistry.
SUBSTANCE: invention relates to production of construction materials, particularly crushed stone to be used in civil and road construction. The method of preparing limestone chips involves saturation of limestone chips with an aqueous solution of lignosulphonates at 50-60°C in ratio of lignosulphonates to water equal to 1:(8-12) and holding for 12 hours and then drying at 120-180°C to constant weight.
EFFECT: high strength of limestone chips.
6 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING A MODIFIED BUILDING LIMESTONE CRUDE | 2017 |
|
RU2668902C1 |
| METHOD OF PREPARING LIMESTONE CONSTRUCTION RUBBLE | 2017 |
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| METHOD FOR PRODUCING SULPHUR-IMPREGNATED CHIPPINGS FOR CONSTRUCTION OF ROAD BASES AND PAVINGS AND UNIT FOR PRODUCTION OF SULPHUR-IMPREGNATED CHIPPINGS | 2023 |
|
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| RAW MIXTURE FOR PRODUCING FILLER PREFERABLY ROAD GRAVEL | 0 |
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| COMPOSITE RAW MIX FOR MANUFACTURE OF HYDRAULIC PILES | 2021 |
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RU2764758C1 |
