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В.Н. Макаров, В.В. Лащук, И.С. Кожина, Т.Т. Усачева.
Оценка вскрышных пород Ковдорского месторождения комплексных руд в качестве сырья для производства строительного щебня
// Проблемы рационального использования природного и техногенного сырья Баренцева региона в технологии строительных и технических материалов. Материалы Второй международной научной конференции. Петрозаводск: КарНЦ РАН, 2005. C. 108-111
V.N. Makarov †, V.V Lashchuk., I.S. Kozhina, T.T. Usacheva. Assessment of the possibility of involving overburden rock of the Kovdor complex ore deposit in crushed stone production // Problems in the rational use of natural and technogenic raw materials from the Barents
region in construction and technical material technology. Proceedings of Second
International Conference. Petrozavodsk: Karelian Research Centre, 2005. Pp. 108-111
Overburden rock comprises about a half of the total volume of rock mass of the Zhelezny mine. It is represented by four kinds of rock: olivinites, pyroxenites, iolites, phenites and carbonatites.
Our research focused on the mineral composition and manufacturing properties of these rocks and involved 135 samples in keeping with specifications of All-Union State Standard (AUSS) 8267-93 for crushed stone for construction purposes from hard rock.
The rock mineral contents are found to be extremely unstable and contain zones of weathering. We have studied the relationships between the mineral composition and rock properties, as well as those of crushed stone obtained on their basis. Physico-mechanical studies have shown their applicability for crushed stone making, with the exception of carbonatite. Iolites, containing over 10 vol.% of nepheline and phenites, containing over 0.5 vol.% of sulphides, do not meet the requirements placed on crushed stone for concrete filling.
We suggest maps schematically describing the quality of Kovdor overburden rocks applicable for motorway crushed stone making in terms of its crushibility and abradability.
Our research focused on the mineral composition and manufacturing properties of these rocks and involved 135 samples in keeping with specifications of All-Union State Standard (AUSS) 8267-93 for crushed stone for construction purposes from hard rock.
The rock mineral contents are found to be extremely unstable and contain zones of weathering. We have studied the relationships between the mineral composition and rock properties, as well as those of crushed stone obtained on their basis. Physico-mechanical studies have shown their applicability for crushed stone making, with the exception of carbonatite. Iolites, containing over 10 vol.% of nepheline and phenites, containing over 0.5 vol.% of sulphides, do not meet the requirements placed on crushed stone for concrete filling.
We suggest maps schematically describing the quality of Kovdor overburden rocks applicable for motorway crushed stone making in terms of its crushibility and abradability.
problem_region_ispol_108.pdf (259 Kb, total downloads: 317)
Last modified: November 30, 2006