Ecological aspects of technogenic material application in road construction technologies

International Scientific Conference «AGRITECH-2019: Agribusiness, Environmental Engineering and Biotechnologies»

农业科学;生态环境科学;生物科学

Shepelev, I.I.^1 ; Eskova, E.N.^1 ; Potapova, S.O.^1 ; Khizhnyak, S.V.^1 ; Bochkov, N.N.^2

Krasnoyarsk State Agrarian University, Mira Ave. 90, Krasnoyarsk

660049, Russia^1

LLC Dolomit, Dubrovinskyst. 1112 room 406, Krasnoyarsk

660049, Russia^2

关键词: Aqueous extracts;    Biotesting;    Construction technologies;    Ecological aspects;    Road pavements;    Sand mixture;    Technogenic materials;    Toxic effect;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/315/5/052019/pdf
DOI  :  10.1088/1755-1315/315/5/052019

来源: IOP

【 摘 要 】

It is shown in the paper that various secondary technogenic products and industrial wastes are effectively used as cheap raw materials for the production of road construction material. The hardening kinetics of the nepheline-sand mixture compacted at different initial humidity was studied, which showed that when nepheline sludge used as a binder, a relatively uniform set of strength of the samples was observed for a long time. Analysis of the aqueous extract from nepheline sludge showed there are ions of Ca++, K+, Na+, CO32-, HCO3-, SO42-, Cl- in it. Using the method of biotesting confirmed the absence of toxic effects of the proposed technogenic materials for use in the strengthening soil of road pavement.