HOT SAND ASPHALT WITH ACTIVATED QUARTZ FILLER

FIELD: highway engineering. SUBSTANCE: invention relates to laying upper layers of pavement and aims at increased water resistance and durability of asphaltic concrete and lowering temperature of preparation and cost of sand asphalt. To that aim, quartz sand is treated with carbonate slime (moisture...

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Bibliographische Detailangaben
Hauptverfasser:	MAKRIDOV G.V, KOREN'KOVA S.F
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	FIELD: highway engineering. SUBSTANCE: invention relates to laying upper layers of pavement and aims at increased water resistance and durability of asphaltic concrete and lowering temperature of preparation and cost of sand asphalt. To that aim, quartz sand is treated with carbonate slime (moisture 50-60%) followed by drying at 160-180 C. Hot sand asphalt preparation with this filler requires following component contents, wt.-%: quartz sand, 70; carbonate filler, 30; bitumen, 9 (based on mineral mixture weight); and carbonate slime, 5-10 (on sand weight). EFFECT: improved quality and increased service life of pavement. 2 tbli