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DOI: 10.15862/18SATS119 (https://doi.org/10.15862/18SATS119)

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Kochetkov A.V., Shchegoleva N.V., Korotkovskiy S.A., Talalai V.V., Vasilyev Yu.E., Shashkov I.G. [The device layers and transport facilities of hemihydrate phosphogypsum (waste byproduct of the production of nitrogen-phosphorus fertilizers)] Russian Journal of Transport Engineering, 2019, Vol. 6, No. 1. Available at: https://t-s.today/PDF/18SATS119.pdf (in Russian). DOI: 10.15862/18SATS119

The device layers and transport facilities of hemihydrate phosphogypsum (waste byproduct of the production of nitrogen-phosphorus fertilizers)

Kochetkov Andrey Viktorovich
Perm national research polytechnical university, Perm, Russia
E-mail: soni.81@mail.ru

Shchegoleva Natal’ya Vyacheslavovna
Saratov state technical university of Gagarin Yu.A., Saratov, Russia
E-mail: Shegoleva123@mail.ru

Korotkovskiy Sergey Alekseevich
Saratov national research state university name’s N.G. Chernyshevsky, Saratov, Russia
E-mail: korotkovca@mail.ru

Talalai Victor Vyacheslavovich
Moscow automobile and road state technical university, Moscow, Russia
E-mail: talalay@bk.ru

Vasilyev Yury Emmanuilovich
Moscow automobile and road state technical university, Moscow, Russia
E-mail: vashome@yandex.ru

Shashkov Igor Gennadiyevich
Military and air academy of a name of professor N.E. Zhukovskogo and Yu.A. Gagarin, Voroneg, Russia
E-mail: igoshashkov@yandex.ru

Abstract. The implementation of the proposed innovative project on the use of phosphogypsum waste in road construction will: solve the problem of recycling and processing of phosphogypsum by using it as a local by-material for the construction of roadbed and foundations of roads; replace natural gypsum with cheaper raw materials for cement, construction and road industry; reduce the cost of construction of roads and extend the turnaround time by improving the quality of their properties.

Road with the use of phosphogypsum is cheaper by 30 % than roads with traditional technologies. In the swampy area due to the characteristics of the material, combining solidity and lightness, phosphogypsum is not interchangeable at all. It allows you to make reliable and durable roads. The design is obtained up to five times stronger than the required standards. At the same time, at the first stage of construction of the road, it is possible to make an intermediate type, making the bases of phosphogypsum, and later laying the remaining structural layers of crushed stone and asphalt. In this case, the coating of technical gypsum is not destroyed, even with the passage of heavy tracked vehicles and at low temperatures.

Keywords: phosphogypsum; dihydrate; hemihydrate; road; structural layer; a base; a by-product; the construction of the landfill

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