MINERAL-ORGANIC BINDING MATERIAL Russian patent published in 2002 - IPC

FIELD: manufacture of building materials. SUBSTANCE: invention can be utilized in road building and repair of asphalt motor roads and aerodromes as well as for waterproofing of road, hydraulic and other engineering structures. Material contains bitumen and limestone mineral powder (weight ratio from 1: 2 to 1:4), the latter being composed of fractions, wt parts: below 1.25 mm, 100; below 0.315 mm, 100; and below 0.071 mm, 73.5. Porosity of powder is no higher than 29 vol % and its clay (Al₂O₃+Fe₂O₃) level no higher than 0.5%. EFFECT: improved physico-mechanical properties of asphalt concrete. 4 dwg, 1 tbl