FIELD: building highway. SUBSTANCE: method involves mixing rubber crumb with liquid bitumen or petroleum asphalt being heated to 180-250 C. Said rubber crumb is initially mixed with dust of leather polishing and is treated in rolls at pressure 30-50 MPa. Proposed binder contains (mass): rubber crumb 8-5, leather dust 2-6, liquid bitumen or asphalt the rest. EFFECT: improves efficiency of method. 1 tbl
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Authors
Dates
1995-12-10—Published
1992-02-18—Filed