METHOD OF BITUMEN MODIFICATION Russian patent published in 2000 - IPC

Abstract RU 2160301 C1

FIELD: methods of bitumen modification; applicable in oil refining and manufacture of building materials. SUBSTANCE: method includes introduction into bitumen of Mannich base in amount of 0.1-0.5 wt.% of bitumen and stirred in rotary-pulsation apparatus with frequency of dynamic pulsation of 400-3000 Hz within temperature range of 120-240 C, with mixture residence time in rotary-pulsation apparatus of 2.55 s. EFFECT: higher quality of bitumen and asphalt concrete made on its base. 3 tbl, 1 ex

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RU 2 160 301 C1

Authors

Shcheblanov A.P.

Shcheblanov S.A.

Lobanov V.V.

Dates

2000-12-10—Published

1999-11-15—Filed