scholarly journals Sources of mineral raw materials for the production of building materials of the Republic of Sakha (Yakutia)

2017 ◽  
Author(s):  
O. N. Burenina ◽  
M. E. Savvinova
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Mineral Raw Materials ◽  
The Republic

GEOENVIRONMENTAL PROBLEMS IN QUARRYING OF MINERAL RAW MATERIALS FOR BUILDING MATERIALS PRODUCTION

2014 ◽  
Vol 4 (1) ◽  
pp. 80-85 ◽  
Author(s):  
Margarita Nikolaevna Baranova ◽  
Natal'ya Genrikhovna Chumachenko ◽  
Vladimir Viktorovich Tyurnikov
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Primary Treatment ◽  
Mineral Raw Materials ◽  
Ecological Problems

Geoenvironmental problems in quarrying, transportation and primary treatment of mineral raw stuff for building materials production are viewed. Main types of impurities are described. Ways to resolve ecological problems are determined. To reduce geoenvironmental tensions it is recommended to intensify efforts for entrainment of manmade products in building materials production.

Development of Zoning Method for Man-Made Massifs

2021 ◽  
pp. 116-122
Author(s):  
I.A. Melnichenko ◽  
Yu.V. Kirichenko
Keyword(s):  
Raw Materials ◽  
Mining Industry ◽  
Environmental Safety ◽  
Economic Feasibility ◽  
Mineral Raw Materials ◽  
Mine Dumps ◽  
Useful Components ◽  
Processing Plants ◽  
The Republic ◽  
Overburden Dumps

Contemporary mining industry is a complex system that is constantly expanding both in terms of explored sources of mineral raw materials and in terms of developing new approaches to mining and processing of minerals. Such a buildup in the scope of tasks set for the industry, as well as the technical progress, lead to various issues related to the quality, quantity and rational use of mineral raw materials. Rationalization, in its turn, should be carried out in a phased manner through the use of comprehensive measures, one of which is reclamation of man-made wastes, represented by waste rocks, tailings, slags, dust, etc. In addition, this approach simultaneously resolves several other important challenges the industry is facing, e.g. increasing the environmental safety of mining regions and increasing the economic feasibility of production by extracting additional components from waste materials. The scope of application of such a solution to the challenge of rationalizing production is immense and can be implemented at many deposits located in the territory of the CIS due to the presence of huge volumes of waste generated by mining raw materials. These wastes were accumulated because of the absence of full-fledged technologies to extract useful components from the rock mass in the past as well as other requirements to ore conditioning than those acting today. For example, in the Republic of Bashkortostan, the overburden dumps and off-balance ores that have been created by mining enterprises amount to more than 1 billion tons, hydraulic-mine dumps of processing plants reach 50 million tons, manmade waters exceed 9 million m3 annually. At the same time, the amount of useful components contained in these man-made deposits can be up to 1.5 million tons for copper, 2 million tons for zinc, about 100 tons of gold as well as significant amounts of other associated components, including various non-metallic formations.

Studies of amorphous-siliceous rocks of the Republic of Kazakhstan as mineral raw materials in the formation of the porous structure of heat-insulating foam glass

2020 ◽  
pp. 5-9
Author(s):  
B. E. Zhakipbaev ◽  
A. S. Kolesnikov ◽  
G. S. Kenzhibaeva ◽  
N. E. Botabaev ◽  
A. N. Kutzhanova ◽  
...  
Keyword(s):  
Glass Powder ◽  
Raw Materials ◽  
Foam Glass ◽  
Insulation Material ◽  
Foam Material ◽  
Mineral Raw Materials ◽  
Blowing Agent ◽  
Siliceous Rocks ◽  
Multicomponent Glass ◽  
The Republic

Foam glass is known mainly as a cellular thermal insulation material obtained by sintering a mixture of glass powder and a blowing agent followed by annealing of the foam material. This article explores the possibility of producing heat-insulating foam glass directly from widely available amorphous-siliceous natural flasks, eliminating economically disadvantageous and energy-intensive processes of cooking and granulation of special multicomponent glass melt from the scheme of traditional technology.

scholarly journals The Effect of Temperature and Composition to the Rheological Properties of Asphalt Pavements

2008 ◽  
Vol 589 ◽  
pp. 85-91 ◽  
Author(s):  
László A. Gömze ◽  
Róbert Géber ◽  
Judit Csányi Tamásné
Keyword(s):  
Rheological Properties ◽  
Mechanical Model ◽  
Building Materials ◽  
Raw Materials ◽  
Asphalt Mixtures ◽  
Asphalt Pavements ◽  
Effect Of Temperature ◽  
Mineral Raw Materials ◽  
Low Viscosity ◽  
The Government

Ceramics, concretes and asphalt-mixtures are the most popular building materials in Hungary, because of the highway programme of the government. In spite of their large popularity, some of the mechanical properties of ceramics, concretes and asphalts are not investigated enough till today. Particularly, there is no mechanical model usable to understand and explain the rheological behaviours of these materials with different compositions of mineral raw materials. It is well known, that the viscosity of viscous materials, viscoelastic materials, and viscoplastic materials dynamically decreases, as the temperature increases. The decrease of viscosity by leaps and bounds could be extremely dangerous in case of asphalt pavements in the range of 55 – 75 °C, due to the crossing of cars on the low viscosity pavements which suffer inelastic deformation, as a result. Using a Rheo-tribometer instrument developed by L. A. Gömze and others, the authors have investigated and tested asphalt mixtures with different composition of mineral raw materials, and would like to reveal and review the dependence of the rheological properties of these pavements against the temperature, and the intensity of the dependence.

scholarly journals THE INFLUENCE OF FORCED CARBONIZATION ON THE PROPERTIES OF GYPSUM-LIME SYSTEMS BASED ON SECONDARY RAW MATERIALS

2022 ◽  
Vol 4 (6) ◽  
pp. 69-81
Author(s):  
Aleksandr Bahtin ◽  
Nikolay Lyubomirskiy ◽  
S. Fedorkin ◽  
Tamara Bahtina ◽  
G. Bilenko
Keyword(s):  
Building Materials ◽  
Water Resistance ◽  
Raw Materials ◽  
Modern Trend ◽  
Secondary Raw Materials ◽  
Effective Activity ◽  
The Republic ◽  
Short Time ◽  
Softening Coefficient ◽  
Physical And Mechanical Characteristics

the use of secondary raw materials for the production of building materials is a modern trend in solving environmental problems. In the Republic of Crimea, dumps of secondary raw materials – phosphogypsum and lime dust – have accumulated in large quantities at various enterprises. The analysis of phosphogypsum, which has been in the dumps for more than 5 years, showed that by its quality indicators it can be attributed to the 2nd grade in accordance with GOST 4013-2019, and the specific effective activity of the material (Aeff) corresponds to the I class of materials, which makes it suitable for the production of gypsum binders. Prototypes-cylinders were made from a mixture of phosphogypsum with lime dust of 1:1 composition at a pressure of 30 MPa and then subjected to hardening according to three schemes, in order to separate the passage of various types of hardening and study each of them for the physico-mechanical properties of the resulting material. The analysis of experimental data made it possible to establish the effectiveness of simultaneous flow in the system of two types of hardening – carbonate and hydration for lime and phosphogypsum components of the raw mixture, respectively. As a result of the organization of a mixed type of hardening of gypsum-lime binder, samples with a compressive strength of 26.5 MPa and a softening coefficient of 0.63 were obtained within 90 minutes. The calcium carbonate formed in the process, which is the product of the reaction between calcium hydroxide and carbon dioxide, significantly increases the water resistance of the hydration products of gypsum binder. It is established that with an optimal combination of technological factors and hardening conditions, a significant increase in the physical and mechanical characteristics of the carbonized material is possible in a short time.

scholarly journals Study of zeolite-containing silicon rocks of Dagestan for obtaining a mineral additive to cement

2021 ◽  
Vol 10 ◽  
pp. 42-46
Author(s):  
A. R. Yusupov ◽  
◽  
S. A. Mamaev ◽  
Z. A. Yusupov ◽  
A. S. Mamaev
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Total Content ◽  
Cement Clinker ◽  
Resource Base ◽  
Siliceous Rocks ◽  
Productive Stratum ◽  
Mineral Additive ◽  
The Republic ◽  
Technological Study

Siliceous-carbonate rocks are widespread on the territory of the Republic of Dagestan, in which the total content of zeolites and opal-cristobalite-tridymite phase (OCT) exceeds 45 %, and the content of calcite is above 30 %. The rocks, composing a productive stratum (at least, most of it), lithologically correspond to opoka-like and highly siliceous limestones, zeolite-containing (10–15 %) and zeolite (40 % or more), weakly quartz and weakly clayey. However, they are distinguished from pure limestones by a low value of actual calcite part — often less than 50 %. Therefore, in this case, the section of the productive strata is defined as «folded by siliceous-carbonate zeolite-containing rocks.» Such rocks, in accordance with the results of laboratory and technological study, are considered as raw materials for the production of building materials. Zeolite-containing rocks are suitable for use as an additive in Portland cement, which will save cement clinker in the production process and improve the quality of cement. Prospecting works for zeolites and zeolite-containing rocks in the Levashinskaya (Levashinsky district) and Rubaschayskaya (Tabasaran and Kaitagsky districts) areas of Mountainous Dagestan were carried out by the non-metallic party of JSC Sevkavgeologiya in 2007–2009. The resources of siliceous zeolite-containing rocks are in the P1 category — 49.308 million tons, in the P2 category — 69.470 million tons. The predicted resources, their laboratory and technological properties (physicochemical, chemical, technological) indicate the possibility of creating a solid mineral resource base and construction of large complexes for the extraction and processing of zeolites and siliceous rocks in Levashinsky (Levoberezhny and Pravoberezhny areas) and Tabasaran (Dyubek area) regions of the Republic of Dagestan.

scholarly journals Macroeconomics of mining of the Far Eastern Federal District

2020 ◽  
Vol 192 ◽  
pp. 03020
Author(s):  
Gennady Arkhipov
Keyword(s):  
Raw Materials ◽  
Practical Importance ◽  
Mining Industry ◽  
Value Added ◽  
Federal District ◽  
Mineral Raw Materials ◽  
Macroeconomic Indicators ◽  
The Republic ◽  
Regional Product ◽  
Far Eastern

The analysis of macroeconomic indicators of the results of solid mineral extraction (TPI) in 11 subjects of the Far Eastern Federal district (DFO) was performed. The total value of production of all types of minerals (DPI) in terms of money at DFO is about 2.4 trillion rubles (45% of total gross regional product (GRP) of the region is equal to 5 trillion rubles.). More than 63% of the volume of DPI is achieved at the expense of fuel and energy resources of the Sakhalin region and the Republic of Sakha (Yakutia). In the dynamics of the region, there is a significant increase in GRP, production and value added for the DPI in general, and the production of fuel and energy minerals, but slower growth in the production of solid minerals. Ore (metal) raw materials of the region’s subjects in its total GRP is about 21%, in value terms-500 billion rubles. The region produces 16-18 types of ore mineral raw materials, including 12 types of raw materials as the main components of production, 4-5 types-as associated components. The main one is gold production (in 2019 more than 170 tons), silver (more than 930 tons). In the Far Eastern Federal district, reserves and resources of the main TPI for the long term have been identified. It is possible to significantly support the mining industry of the region in the case of exploration of new deposits with high-quality ores. Ore mineral raw materials of the leading geological and industrial types are currently insufficiently studied. It is necessary to develop intra-regional use and processing of raw materials to final products, create metallurgical industries, this will give new incentives to the development of the region’s resources. The analysis is of practical importance for evaluating and selecting directions in the deposits of subsurface use.

scholarly journals Effective building materials using technogenic waste and mineral raw materials

2021 ◽  
Vol 340 ◽  
pp. 01003
Author(s):  
Liliya Berdnikova ◽  
Fedor Gorbunov ◽  
Andrey Lapin
Keyword(s):  
Compressive Strength ◽  
Building Materials ◽  
Bending Strength ◽  
Raw Materials ◽  
Slip Casting ◽  
Construction Materials ◽  
Mineral Raw Materials ◽  
Technogenic Waste ◽  
Wide Range ◽  
Dry Pressing

The results of research on the development of compositions of construction materials for structural purposes based on technogenic waste and mineral raw materials are presented. The possibility of obtaining materials with a wide range of operational properties by the methods of slip casting (compressive strength of the samples based on chamotte and sand is 53.0–95.9 and 50.0-69.5 MPa, bending strength is 8.1–16.5 and 8.5–15.3 MPa, abrasion is 0.2–0.36 and 0.15–0.39 g/cm2, respectively) and semi-dry pressing (compressive strength of the samples based on chamotte and sand are 19.1–43.5 and 18.3–32.6 MParespectively) isdemonstrated.

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