BINDING AGENT FOR ASPHALT-CONCRETE MIXTURES Russian patent published in 2005 - IPC

FIELD: building industry, road building.

SUBSTANCE: invention proposes a binding agent for asphalt-concrete mixtures comprising a modifying agent as an organic binding agent and a filling agent. Agent comprises polyethylene and/or polystyrene waste ground to size 2-5 mm as a modifying agent, and highly dispersed carbonate or oxide powder as a filling agent and sulfur additionally wherein components are taken in the following ratio, wt.-%: bitumen, 30-75; indicated powder, 3-19; polyethylene and/or polystyrene waste, 1-2; sulfur, 20-50. Invention can be used for making road and sidewalk covers, building platforms, industrial object floors and waterproofing materials. Invention provides enhancing strength, waterproofing and reducing water saturation of asphalt-concrete.

EFFECT: improved properties of binding agent.

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