Application of Phosphogypsum in Road Construction
https://doi.org/10.21122/2227-1031-2021-20-6-493-498
Abstract
Abstract. Currently the Republic of Belarus is solving the problem of processing a by-product – phosphogypsum, formed in the process of phosphorric acid production. The issue of utilization of phosphogypsum is becoming more and more relevant, and there are several reasons for this: transportation of phosphogypsum to dumps and its storage require large capital investments and operating costs; when creating phosphogypsum dumps, it is necessary to alienate large areas, sometimes even cultivated land; storage of this material in dumps, even with the neutralization of soluble impurities and with the observance of dump operational rules causes irreparable harm to the environment. There are known studies of scientists on the use of phosphogypsum for road construction as a binder for strengthening soils, foundations and repair work. The paper presents the results of experiments on obtaining road-building materials from this waste without converting it into a binder. Based on the research, a technology for the preparation of asphalt concrete mixtures with the use of mineral powder in the form of phosphogypsum dihydrate has been developed.
About the Authors
Ya. N. Kovalev
Belarusian National Technical University
Russian Federation
Russian Federation
Address for correspondence: Kovalev Yaroslav N. – Belarusian National Technical University, 65, Nezavisimosty Ave., 220013, Minsk, Republic of Belarus. Tel.: +375 17 237-38-81
ftk75@bntu.by
V. N. Yaglov
Belarusian National Technical University
Russian Federation
Russian Federation
Minsk
T. A. Chistova
Belarusian National Technical University
Russian Federation
Russian Federation
Minsk
V. V. Girinsky
Belarusian National Technical University
Russian Federation
Russian Federation
Minsk
References
1. Nedoseko I. V. (1991) Technology for Producing Gypsum Binder from Phosphogypsum with Adsorption Purification from Harmful Impurities. Minsk, 1991. 15 (in Russian).
2. Suchkov V. P., Kiushkin E. V. (2003) Method for Obtaining a Binder. Patent 2200714 Russian Federation (in Russian).
3. Yashin S. L. (2013) Technology and Properties of Bitumen-Mineral Compositions Modified with Phosphogypsum. Grozny. 152 (in Russian).
4. Ministry of Construction and Operation of Roads of the BSSR. Trust “Orgdorstroy” (1990) Recommendations for the Use of Phosphogypsum Semi-Hydrate of the Gomel Chemical Plant in the Design and Construction of Road Pavements. Minsk. 34 (in Russian).
5. Ivanitsky V. V., Klassen P. V., Novikov A. D. (1990) Phosphogypsum and its Application. Moscow, Khimki Publ. 224 (in Russian).
6. New Methods of Processing and Application of Stone Materials and Industrial Waste in Road Construction. Proceedings of Soyuzdor Research Institute. Moscow, Soyuzdornii Publ., 1982. 124 (in Russian).
7. Isaev V. S., Yumashev V. M., Grebenevich N. P., Kochetkova R. G. (1987) The Use of Phosphogypsum in Road Construction. Avtomobilnye Dorogi [Highways], (1), 9–10 (in Russian).
8. Kolev I. A. (1989) Obtaining Construction Materials and Products by Mechanochemical Activation of Phosphogypsum. Leningrad. 25 (in Russian).
9. Dvorkin L. I., Dvorkin O. L. (2007) Construction Materials from Industrial Waste. Rostov on Don, Feniks Publ. 368 (in Russian).
10. Zhavrid S. S., Malikhtorovich V. I., Abramov V. M. (1982) Building Products and Structures Made of Polymer Phosphogypsum. Minsk, Uradzhayi Publ. 168 (in Russian).
Review
For citations:
Kovalev Ya.N., Yaglov V.N., Chistova T.A., Girinsky V.V. Application of Phosphogypsum in Road Construction. Science & Technique. 2021;20(6):493-498. (In Russ.) https://doi.org/10.21122/2227-1031-2021-20-6-493-498
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