Researchers from Perm National Research Polytechnic University have developed and patented an inexpensive and environmentally friendly asphalt concrete for roads in mining areas.
Scientists suggested using crushed stone (31% to 35%) from gravel, sand from crushing screens (60% to 65%), drill bits (4-9%), and bitumen (5.4-6.0%). asphalt concrete. ). Examination of the content of heavy metals and petroleum products in drilling cullet samples, which is a waste from oil production, has shown that its use will not seriously degrade or alter the chemical composition of the pavement area over its entire life. loop.
Kirill Tyuryukhanov, one of the developers, an associate professor in the Department of Roads and Bridges at PNRPU, emphasizes that there is no need to change the production technology for the production of new asphalt concrete.
The tests carried out showed that the invention fully complies with all the requirements of GOST, has high compressive strength, as well as resistance to water and cracks. The new asphalt concrete can be used to pave non-high-speed public roads and improve public and garden areas.
Source: Ferra
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