METHOD OF PRODUCING CONSTRUCTION MATERIAL FROM A MIXTURE OF MILLED DOMESTIC POLYETHYLENE AND ASH FROM BURNING WASTE WATER SLUDGE Russian patent published in 2019 - IPC E01C3/06 C04B18/10 C08L23/06 

FIELD: construction.

SUBSTANCE: invention relates to production of construction materials for road structures. Method involves preparation of a mixture containing a polyethylene homogenized to size of 5 mm as a binder. When preparing the mixture, first, 40–70 wt% of household polyethylene and 30–60 wt % of ash from waste water sludge combustion during 10–15 minutes in heat treatment process at temperature of 250–350 °C with subsequent pressing under load of 10–25 MPa for 3 minutes into plate with thickness of not less than 50 mm and cooling of finished product at ambient temperature.

EFFECT: recycling of polyethylene and ash from construction waste of waste water from storage wastes, obtaining light and dense construction material, high strength and durability of road structures.

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