Fine-grained concrete based on technogenic raw materials for road surfaces

2021 ◽  
pp. 152-159
Author(s):  
N.I. Buravchuk ◽  
O.V. Guryanova
Keyword(s):  
Mechanical Properties ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Fine Grained ◽  
Mine Dumps ◽  
Ash And Slag Waste ◽  
Road Surfaces ◽  
Technogenic Raw Materials ◽  
Road Paving ◽  
Slag Waste

On the basis of technogenic raw materials – ash and slag waste and burnt rocks of mine dumps – the compositions of fine-grained concrete were selected. The developed compositions have been tested in the manufacture of pilot batches of paving slabs. The introduction of fly ash and crushing screenings of burnt rocks into the composition of concrete improves the physical and mechanical properties of products with significant savings in cement. The applicability of the investigated technogenic raw materials in fine-grained concrete, intended for the manufacture of paving slabs and road paving elements, has been proved. Products have high indicators of physical and mechanical properties and quality.

Obtaining Fine-Grained Concrete with the Use of Ash Gidrogelei and Conducting Final Testing

2019 ◽  
Vol 802 ◽  
pp. 69-77
Author(s):  
Alexandra Viktorovna Semenyutina ◽  
Igor Yuryevich Podkovyrov ◽  
Galina Vladimirovna Podkovyrova ◽  
Viktoria Alekseevna Semenyutina
Keyword(s):  
Mechanical Properties ◽  
Power Plants ◽  
Granulometric Composition ◽  
Physical And Mechanical Properties ◽  
Fine Grained ◽  
Ash And Slag Waste ◽  
Slag Waste

The article is devoted to the use of waste power plants. The basic physical and mechanical properties are investigated and the optimal compositions of fine concrete are developed. The optimal granulometric composition of ash and slag waste was selected for use as aggregates for concrete

scholarly journals USE OF TECHOGENIC RAW MATERIALS IN THE TECHNOLOGY OF CERAMIC BRICKS PRODUCTION

2020 ◽  
pp. 160-169
Author(s):  
N.I. Buravchuk ◽  
O.V. Guryanova
Keyword(s):  
Negative Impact ◽  
Raw Materials ◽  
Raw Material ◽  
Laboratory Research ◽  
Regulatory Documents ◽  
Mine Dumps ◽  
Ash And Slag Waste ◽  
Technogenic Raw Materials ◽  
The Cost ◽  
Slag Waste

The article presents the results of a study of burnt rocks of mine dumps, ash and slag waste and clay raw materials for the purpose of their use in the technology of manufacturing ceramic bricks. Indicators of their quality are given. In terms of properties and composition, this raw material is close to clay. Compositions and technological modes for the manufacture of ceramic bricks using burnt rocks of mine dumps and ash and slag waste have been developed. The results of laboratory research and industrial tests are presented. The possibility of using this technogenic raw material in the technology of manufacturing ceramic bricks has been proven. The use of burnt rocks and ash and slag waste in the compositions for the manufacture of ceramic bricks can improve its quality, including strength and frost resistance. In all respects, prototypes of ceramic bricks meet the requirements of regulatory documents. The involvement of technogenic raw materials in production allows you to save part of natural raw materials, reduce the cost of products while improving their quality, and help reduce the negative impact of waste on the environment in the areas of their location.The involvement of technogenic raw materials in production allows you to save part of natural raw materials, reduce the cost of products while improving their quality, and help reduce the negative impact of waste on the environment in the areas where they are located.

scholarly journals THE USE OF TECHNOGENIC RAW MATERIALS FOR THE CONSTRUCTION OF THE SUBGRADE OF RAILWAY TRACK

2019 ◽  
pp. 195-207
Author(s):  
N.A. Buravchuk ◽  
O.V. Guryanova
Keyword(s):  
Mechanical Properties ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Environmental Problems ◽  
Comprehensive Assessment ◽  
Railway Track ◽  
Successful Operation ◽  
Natural Landscape ◽  
Mine Dumps ◽  
Technogenic Raw Materials

A comprehensive assessment of the rocks of mine dumps was carried out. The physical and mechanical properties of rocks as raw materials for the device of the roadbed of the access railway are investigated. Given the properties of the graded crushed stone and screenings from the crushing of mine rock. The possibility of using mine rocks instead of soil in the roadbed is substantiated. Features of hardening of the massif of a roadbed from mine breeds are shown. The technology of the device of an earthen cloth is stated. The successful operation of the access section of the railway track with a length of 27 km confirms the feasibility of using mine rocks for the construction of the roadbed. The use of rocks of mine dumps allows to solve some environmental problems: to reduce the number of quarries for the extraction of natural raw materials, to preserve the natural landscape of the earth’s surface, to free the land from the dumps, to reduce the pollution of water and air basins.

scholarly journals INFLUENCE OF THE OPTIMAL GRAIN COMPOSITION OF AGGREGATE ON THE MAIN PHYSICAL AND MECHANICAL PROPERTIES OF FINE-GRAINED CONCRETE

2020 ◽  
pp. 151-157
Author(s):  
M.A. Dzhusupova ◽  
A. Talantbek kyzy
Keyword(s):  
Power Plants ◽  
Fractional Composition ◽  
Thermal Power ◽  
Physical And Mechanical Properties ◽  
Grain Composition ◽  
Fine Grained ◽  
Ash And Slag Waste ◽  
Slag Waste ◽  
Rational Composition ◽  
Artificial Origin

The article is devoted to the study of the possibility of reducing the consumption of cement in concrete by optimizing the fractional composition of small aggregates of natural and artificial origin and the use of ash and slag waste of thermal power plants. Using the computer program of the grain composition correction module allows you to quickly determine the rational composition of sand and ensure tight packaging of its grains in concrete. In addition, optimal quantities of hyperplasticizers were selected to produce concrete with the required physical and technical characteristics.

scholarly journals STUDY OF THE INFLUENCE OF FILLER BASED ON PORCELAIN WASTE ON PHYSICAL AND MECHANICAL PROPERTIES OF HOT FINE-GRAINED ASPHALT CONCRETE

2021 ◽  
Vol 9 (3) ◽  
pp. 26-30
Author(s):  
Alexander Evforitsky ◽  
Natalia Yatsenko ◽  
Lilia Popova
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Asphalt Concrete ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Refractory Clay ◽  
Road Surface ◽  
Fine Grained ◽  
Temperature Firing

The results of research are presented when replacing finely crushed mineral part of asphalt concrete with waste from the production of porcelain stoneware, which is a product of high-temperature firing of a mixture of refractory clay raw materials and feldspar rocks, which provides high physical and mechanical properties of waste and further road surface.

Physical and Mechanical Properties of Fine-Grained Soil in the Zhejiang-Fujian Coastal Area, China

2011 ◽  
Vol 29 (4) ◽  
pp. 333-345 ◽  
Author(s):  
Yuan-Qin Xu ◽  
Pei-Ying Li ◽  
Ping Li ◽  
Le-Jun Liu ◽  
Cheng-Xiao Cao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Coastal Area ◽  
Physical And Mechanical Properties ◽  
Fine Grained ◽  
Fine Grained Soil

INDUSTRIAL WESTE ACCOUNTING ON EXAMPLE ASH DUMPS

2021 ◽  
Vol 4 (4) ◽  
pp. 182-188
Author(s):  
T. S. BUDINA ◽  
◽  
N. Kh. KURBANOV ◽  
L. M. PROKOFIEVA ◽  
V. G. SHIYKO ◽  
...  
Keyword(s):  
Production Efficiency ◽  
Raw Materials ◽  
Accurate Determination ◽  
Accounting System ◽  
Secondary Material ◽  
Ash And Slag Waste ◽  
Sufficient Degree ◽  
Slag Waste ◽  
Financial Result

The article is devoted to the problems of accounting for industrial waste (technogenic deposits) on the example of ash and slag dumps. The influence of the organization of accounting for technogenic deposits on the indicators of cost, profit, and profitability of the enterprise, if these wastes are sold or used as secondary material, is studied. It is proved that the accounting system should accumulate and form such information that would allow with a sufficient degree of accuracy to determine the economic efficiency of the integrated use of raw materials, would aim at identifying reserves for increasing production efficiency. According to the authors, accounting under IFRS provides a more accurate assessment of ash and slag waste, which ultimately will allow the most accurate determination of the financial result from their further use.

scholarly journals KUALITAS PAPAN PARTIKEL BERDASARKAN KOMPOSISI SEKAM PADI DAN KAYU SENGON DENGAN VARIASI KADAR PEREKAT

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Dendi Prayoga ◽  
. Dirhamsyah ◽  
. Nurhaida
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Rice Husk ◽  
Raw Materials ◽  
Urea Formaldehyde ◽  
Physical And Mechanical Properties ◽  
Solid Content ◽  
Particle Board ◽  
Rice Husks ◽  
Wood Processing

This research aimed to examine the physical and mechanical properties of particle boards based on the composition of raw materials and adhesive content and know the treatment of the composition of raw materials and the best adhesive content and meet the standard JIS A 5908-2003. The research was conducted at Wood Workshop Laboratory, Wood Processing Laboratory Faculty of Forestry,Tanjungpura University and Laboratory of PT. Duta Pertiwi Nusantara Pontianak. The adhesive used is Urea Formaldehyde with 52% Solid Content. Comparison of the composition of rice husks and sengon varies namely rice husk 50%: sengon 50%, rice husk 60%: sengon 40% and rice husk 70%: sengon 30%  and variations in the levels of UF adhesives, namely 14% and 16%, with target density 0,7 gr/cm3. The particleboard was 30 cm x 30 cm x 1 cm Pressing at temperature 140oC for 8 minutes, with  pressure of 25 kg/cm2. The research results of the study of density and moisture content meet the standards JIS A 5908-2003. The best particle values of rice husk and sengon  with composition a ratio of  rice husk 50%: sengon 50% , 16% adhesive content  16%, with density value of  0,7072 gr/cm3, moisture content 9,1949 %, thick development 12,3210 %, water absorption 68,8270 %, MOE 12110,7273 kg/cm2, MOR 161,0025 kg/cm2, firmness sticky 1,9320 kg/cm2, screw holding strength 62,3124 kg.Keywords : adhesive, composition, particle board, rice husk, sengon

scholarly journals SIFAT FISIK DAN MEKANIK PAPAN GIPSUM DARI LIMBAH KAYU AKASIA (Acacia mangium Willd) BERDASARKAN KADAR GIPSUM DAN UKURAN SERBUK KAYU

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Ridho Pratama ◽  
M Dirhamsyah ◽  
. Nurhaida
Keyword(s):  
Mechanical Properties ◽  
Raw Materials ◽  
Acacia Mangium ◽  
Physical And Mechanical Properties ◽  
Powder Size ◽  
Wood Powder ◽  
Gypsum Board ◽  
Randomized Design ◽  
Gypsum Content ◽  
Two Factors

This study aims to examine the physical and mechanical properties of gypsum board from Acacia mangium Willd wood waste based on gypsum content and wood powder size. This study refers to the JIS A 5417-1992 standard. This research were conducted at Wood Work Shop laboratory for the preparation of raw materials, Wood Technology laboratory Faculty of Forestry for board making and testing the physical properties of gypsum boards, and  PT. Duta Pertiwi Nusantara laboratory to test the mechanical properties of the gypsum board. The material used is  A. mangium W. Wood powder, gypsum flour, water and borax. The study uses Factorial Completely Randomized Design (CRD) with two factors, namely factor A (gypsum content) which consists of gypsum content of 400%, 500% and 600% of the weight of A. mangium W. wood powder, and factors B (wood powder size) consists of 20 mesh passes 40 mesh retained and 40 mesh passes 60 mesh retained. The results showed that the density (600% gypsum content of 40 and 60 mesh retained wood powder size), moisture content, thickness swelling, MOE (600% gypsum content of 40 and 60 mesh retained wood powder size) fulfill JIS A5417-1992 standard. The best gypsum board is gypsum board with gypsum content of 600% with a wood powder size is 40 mesh.Keyword: Acacia mangium, gypsum board, gypsum content, wood powder size.

scholarly journals Mechanical and physical properties of fine-grained concrete for concrete additive manufacturing

2019 ◽  
Vol 91 ◽  
pp. 02041
Author(s):  
Sergey Udodov ◽  
Yuriy Galkin ◽  
Philip Belov
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Physical Properties ◽  
Crucial Role ◽  
Physical And Mechanical Properties ◽  
Concrete Composition ◽  
Fine Grained ◽  
Mechanical And Physical Properties ◽  
Time Periods

Additive manufacturing (3D printing) is becoming more and more common in the field of modern construction. However, for wider implementation of this technology, it is necessary to solve a number of material-oriented scientific problems related to development of concrete composition with targeted rheological, stress-strain, physical and mechanical properties. It has been established that time periods between successful applications of layers play the crucial role in ensuring monolithic features of the “printed” structures. Application of mathematics planning of the experiment allowed establishing the main principles of formation of basic physical and mechanical properties of fine-grained concrete depending on material composition.

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