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.

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 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.

scholarly journals Solution to the problems of complex use of mineral raw materials

2021 ◽  
Vol 885 (1) ◽  
pp. 012063
Author(s):  
L I Khudyakova ◽  
S L Buyantuev ◽  
V T Buyantuev
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Control Sample ◽  
Environmental Safety ◽  
High Heat ◽  
Alkali Resistance ◽  
Technological Parameters ◽  
Basalt Fibre ◽  
Temperature Plasma ◽  
Mineral Raw Materials

Abstract The increasing pace of construction in areas in eastern Russia is leading to an increased demand for building materials. To meet this demand, local raw materials, including basalt, are widely used. In this article, we have shown the possibility of complex use of basalts in the production of various types of products. Using low-temperature plasma, basalt fibre with good physical and chemical characteristics was obtained. It possesses high heat-resistance (up to 700°C) and alkali resistance, and is stable in aqueous medium. Using mechanical activation method composite binding materials were obtained. Technological parameters of their production are determined. It is shown that the binding materials with optimal composition have a compressive strength higher than the strength of the control sample by 18%. The integrated use of mineral raw materials allows us to solve the issues of energy efficiency, resource conservation and environmental safety in the development of mineral deposits and the production of new types of products.

scholarly journals PRODUCING OF NEW TYPES, FIRE-PROTECTIVE COATINGS BY THE USE OF HIGH DISPERSED COMPOSITE POWDERS OF LOCAL MINERAL RAW MATERIALS

InterConf ◽  
2021 ◽  
pp. 315-325
Author(s):  
Lali Gurchumelia ◽  
Murman Tsarakhov ◽  
Tengiz Machaladze ◽  
Dali Dzanashvili ◽  
Feliks Bezhanov ◽  
...  
Keyword(s):  
Technological Process ◽  
Flame Retardants ◽  
Building Materials ◽  
Raw Materials ◽  
Protective Coatings ◽  
Mechanical Mixing ◽  
Composite Powders ◽  
Performance Properties ◽  
Mineral Raw Materials ◽  
Environmentally Safe

The aim of this research is the fabrication of new types, environmentally safe, highly efficient and inexpensive fire-protective coatings by the use of high-dispersed composite powders (with high inhibitory properties) of local mineral raw materials, which in fire-protective coatings will play the role as binders as well as efficient inert flame retardants. Fire-protective coating was prepared only by mechanical mixing of binders and fillers, does not require addition of expensive phosphorus and halogen-containing flame retardants. On the one hand it simplifies technological process of production of materials and on the other hand decreases price cost of fire-protective coatings. Polyurethane resins were selected as binders, popularity of which is due to low price and simple technological process of production, high performance properties and low combustion capacity (in comparison with binders, used in series). High-dispersed composite powders of local mineral raw materials: zeolites, perlites, dolomites and clay shales are used as fillers, which are characterized by high inhibition properties and fire-extinguishing ability. Thus, produced coatings will be environmentally safe and much cheaper compared to imported analogues. Due to their performance properties and fire resistance, they will fully meet the requirements set by the normative documentation for building materials. The performance properties of the obtained fire–protective coatings were determined by laboratory standard methods. Thermogravimetric analysis method allows us to study the thermal stability of the material and determine the relative combustion capacity of the material. The effectiveness of the obtained coating was evaluated by the determine the relative combustion capacity - Oxygen Index (OI) and by of studying combustibility of materials. In the course of studying combustibility of materials in an initial stage was established combustible group by the method of "fire tube”- ГОСТ 1708-71.

scholarly journals RAW MATERIALS BASE OF THE CRIMEAN CONSTRUCTION INDUSTRY AND WAYS OF ITS EXPANSION

2021 ◽  
Vol 77 (4) ◽  
pp. 66-71
Author(s):  
S.I. Fedorkin ◽  
N.V. Lyubomirsky ◽  
E.A. Kogay ◽  
A.V. Dudinskaya
Keyword(s):  
Construction Industry ◽  
Building Materials ◽  
Raw Materials ◽  
Raw Material ◽  
Material Base ◽  
Secondary Mineral ◽  
Mineral Raw Materials ◽  
The Crimea ◽  
Wall Materials

The article analyzes the raw material base of building materials of the Crimea and shows the ways of its expansion due to the production of wall materials based on secondary mineral raw materials and lime-fluff using the technology of forced carbonation of products.

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