scholarly journals Study of polymer-based adhesive mortar with higher durability

2021 ◽  
Vol 1209 (1) ◽  
pp. 012038
Author(s):  
R Hermann ◽  
P Figala ◽  
L Mészárosová ◽  
R Drochytka
Keyword(s):  
Mechanical Properties ◽  
Building Materials ◽  
Raw Materials ◽  
Filling Ratio ◽  
Waste Materials ◽  
Filling Rate ◽  
Abrasive Resistance ◽  
Secondary Raw Materials ◽  
Very High ◽  
Packaging Glass

Abstract This paper deals with the study and development of polymer-based adhesive with high filling ratio of secondary raw materials and waste materials. The goal of this paper is to develop adhesive mortar with the highest filling rate of secondary raw materials and waste materials as possible while preserving very high physical-mechanical properties, including flexural and compressive strength, pull-off bond strength and abrasion resistance. High-temperature fly ash, waste slag and waste packaging glass are used in this paper as fillers. The resulting mortar shows high physical-mechanical properties, including high abrasive resistance and very high bonding strength to a large variety of building materials including concrete, steel, glass, and tiles.

Development of Flooring Materials with Cellular Waste

2013 ◽  
Vol 688 ◽  
pp. 172-175
Author(s):  
Eva Tůmová ◽  
Rostislav Drochytka
Keyword(s):  
Mechanical Properties ◽  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Essential Element ◽  
Lightweight Construction ◽  
Secondary Raw Materials ◽  
Flooring Materials

In the development of floor structures new building materials, additives, fillers and secondary raw materials of various properties are increasingly used. It is possible to develop new types of materials with different mechanical properties. Lightweight construction materials are the essential element for industrial floors lightening and thereby for reduce of their weight. This is especially beneficial for multi-storey buildings.

Polymer-Based Repair Mortar Containing Waste Perlite Powder

2021 ◽  
Vol 898 ◽  
pp. 73-79
Author(s):  
Radek Hermann ◽  
Jakub Hodul ◽  
Aleš Jakubík
Keyword(s):  
Mechanical Properties ◽  
Bonding Strength ◽  
Building Materials ◽  
Expanded Perlite ◽  
High Bonding Strength ◽  
Repair Mortar ◽  
Very High

This paper deals with the problematics of utilization of waste perlite from production of expanded perlite in polymer-based material. The goal of this paper is to develop repair mortar containing as high amount of waste perlite as possible as substitution for filler. The resulting mortar exhibits very high physical-mechanical properties such as high bonding strength to a large variety of building materials. The microstructure and the re-dispersibility of filler were also studied.

Development of New Advanced Plasters with Waste Fibers Content

2018 ◽  
Vol 276 ◽  
pp. 248-253
Author(s):  
Jiří Zach ◽  
Jitka Peterková ◽  
Vítězslav Novák
Keyword(s):  
Mechanical Properties ◽  
Building Materials ◽  
Raw Materials ◽  
Cellulose Fibers ◽  
Positive Influence ◽  
Point Of View ◽  
Pet Bottles ◽  
Thermal Insulating ◽  
Insulating Properties ◽  
Recycled Waste

The paper deals with the possibilities of using secondary raw materials in the development of new advanced lightweight plasters. It was about fibers from recycled waste materials (waste paper, PET bottles, tyres) and recycled insulation (stone wool). The aim of adding fibers to these lightweight building materials was improvement of mechanical properties, improvement thermal insulation properties and reduction of crack sensitivity. It can be stated, based on the evaluation of the selected measurements, that both types of cellulose fibers and fibers from recycled tyres had positive influence on the mechanical properties, namely in the case of compressive strength. From the point of view of thermal insulating properties, it can be said that only 2 types of fibers have reduced the value of the thermal conductivity. They were mixtures with stone fibers and with recycled tyres fibers. Both of these mixtures also showed the lowest average values of bulk density. Based on the carried out research works can be it concluded that the use of recycled tyres fibers show as optimal.

scholarly journals Analysis of the Possibility of Calculating the Charges on the Example of Brasses

2017 ◽  
Vol 62 (4) ◽  
pp. 2165-2170
Author(s):  
S. Biernat ◽  
A.W. Bydałek ◽  
W. Wołczyński ◽  
K. Najman
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Raw Materials ◽  
Graphical Form ◽  
Metal Charge ◽  
Secondary Raw Materials ◽  
Rational Management ◽  
The Subject

Abstract This paper describes the subject of brasses and the method of their production from the secondary raw materials. It focuses on two very important aspects extremely important for today’s world. The first of them is the theme of rational management of materials, particularly metallic scrap. The second issue is the growing importance of products made of brass, which in recent times get also special recognition in medicine. This article presents a proposal for a methodology for calculating the metal charge for brasses of two or more components. It turns out that by using suitable mathematical calculations one can accurately determine the amount of metal charge to obtain a product having the desired chemical composition and desired mechanical properties. Mathematical calculations are also presented in the graphical form for the visualization of dependency and a better explanation of the accepted approach.

scholarly journals SCIENTIFIC AND PRACTICAL FOUNDATIONS OF THE CREATION OF MULTI-PURPOSE NEEDLE-MILLING SHREDDERS

2018 ◽  
Vol 3 (3) ◽  
pp. 107-116
Author(s):  
В.С. Севостьянов ◽  
Vladimir Sevost'yanov ◽  
Татьяна Сиваченко ◽  
Tat'yana Sivachenko ◽  
М.В. Севостьянов ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Raw Materials ◽  
Materials Processing ◽  
Application Area ◽  
Secondary Raw Materials ◽  
Milling Machines ◽  
The Creation ◽  
Comprehensive Processing

At present, the amounts of technogenic materials are constantly increasing. Therefore, the urgent tasks are the comprehensive processing and recycling of solid industrial and household wastes. In most cases, the process of grinding is one of the energy-intensive stages of technogenic materials processing. The possibility of manufacturing products from recycled wastes and the application area of secondary raw materials depend on the degree of grinding. Involving into technological use a large number of anisotropic and hard-processing materials requires the implementation of new types of shredders. One of them is needle-milling machines, the creation of which requires the development of both their designs and the calculation and designing methods which would take into account the physical-mechanical properties of the processed technogenic materials. For this purpose, a necessary set of studies was performed and their application was substantiated.

scholarly journals Correction: Lyubomirskiy, N., et al. Intensive Ways of Producing Carbonate Curing Building Materials Based on Lime Secondary Raw Materials. Materials 2020, Vol. 13, 2304

Materials ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 3477
Author(s):  
Nikolai Lyubomirskiy ◽  
Aleksandr Bakhtin ◽  
Stanisław Fic ◽  
Małgorzata Szafraniec ◽  
Tamara Bakhtinа
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Secondary Raw Materials

The authors wish to make the following correction to this paper [...]

scholarly journals Intensive Ways of Producing Carbonate Curing Building Materials Based on Lime Secondary Raw Materials

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2304 ◽  
Author(s):  
Nikolai Lyubomirskiy ◽  
Aleksandr Bakhtin ◽  
Stanisław Fic ◽  
Małgorzata Szafraniec ◽  
Tamara Bakhtinа
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Co2 Concentration ◽  
Optimization Methods ◽  
Accelerated Carbonation ◽  
Secondary Raw Materials ◽  
Production Wastes ◽  
Limestone Dust ◽  
Carbonation Curing

The article is dedicated to the research and development of intensive methods for curing products by capturing and binding CO2. It aims to improve and increase the productivity of technologies for the production of artificially carbonated building materials and products. Soda production wastes, limestone dust and finely dispersed limestone dust were used as the research objects. Secondary raw materials have been investigated using modern methods of phase composition and granulometry test. Intensive methods of production of accelerated carbonation of systems consisting of soda wastes were tested using multi-parameter optimization methods. The effects of recycled lime materials on the strength and hydrophysical properties of the obtained material were determined. The secondary raw materials effect depended on the composition of the raw mixture, molding conditions, CO2 concentration applied to the carbonate curing chamber, and the duration of exposure to environments with high CO2 content. It was found that the most effective way of providing accelerated carbonation curing of construction materials and products is a combined carbonation method, combining the principles of dynamic and static methods. It was concluded that the optimal CO2 concentration in the gas-air mixtures used for carbonate curing is 30%–40%.

Silicate Sprayed Mixture Based on Secondary Raw Materials

2019 ◽  
Vol 808 ◽  
pp. 129-135
Author(s):  
Petr Figala ◽  
Rostislav Drochytka ◽  
Radek Hermann ◽  
Jiří Kolísko
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
High Temperature ◽  
Fly Ash ◽  
Raw Materials ◽  
Positive Influence ◽  
Foundry Sand ◽  
Secondary Raw Materials ◽  
Fundamental Research

This paper studies the fundamental research and development of sprayed cement-based mixture designed to withstand the chemically aggressive conditions. The aim of this paper is to verify the possibilities of usage of suitable secondary raw materials as a substitution of a binder and filler of the original mixture while preserving or improving the physical-mechanical properties. In this part of the research was studied the possibility to substitute the binder in rate of 20-60 wt.% by high temperature fly ash and the whole filler by foundry sand and slag. Test samples were made from nine recipes, in which was monitored the influence of secondary raw materials on the compressive strength and the water absorption after 28 days of curing. The results of this paper show, it is possible to successfully substitute part of the binder by high temperature fly ash and the filler wholly by foundry sand in the sprayed mixture. These optimized recipes showed positive influence mainly in the long-term on mechanical properties.

scholarly journals ANALYSIS OF THE POSSIBILITIES OF IMPROVING THE QUALITY OF INSULATION FROM SECONDARY RAW MATERIALS AND THE PROSPECTS OF THEIR USE IN CONSTRUCTION

2021 ◽  
pp. 85-90
Author(s):  
А. V. RADKEVICH ◽  
V. I. ANIN ◽  
V. V. RADCHENKO ◽  
A. A. SHUVAEV
Keyword(s):  
Information Technologies ◽  
Flame Retardants ◽  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Comparative Characteristic ◽  
Value Analysis ◽  
Secondary Raw Materials ◽  
Modern Technologies

Purpose. Research and analysis of opportunities to improve the quality of insulation from secondary raw materials to study the prospects of their use in the construction industry as innovative materials with better performance than traditional ones. Materials made from secondary raw materials are of great importance not only in the formation of the building materials market, but also in the Ukrainian economy. The processing infrastructure creates a large number of jobs and tax deductions to the budget. In addition, the consumption of energy resources and the cost of servicing energy mains directly depend on the improvement of the thermal efficiency of premises and structures. The use of modern technologies of building materials combines economy, efficiency and durability of structures. Methodology. An important role in the development of modern construction production is played by the possibility of developing and improving the quality of building materials and technologies for their use. In modern conditions of the market of construction products there is an urgent need for constant modernization of construction processes, due to the efficient use of raw materials and the latest processing methods. With the use of modern information technologies and theoretical and methodological ways to solve problems, it becomes possible to consider options for improving the characteristics of building materials by combining qualitative characteristics and eliminating negative ones. Findings. This paper presents scientifically sound methods of modernization of secondary raw materials in the composition of insulation materials with high thermal and economic characteristics, which are able to compete in the market with traditional building materials. The analysis of flame retardants was carried out. Originality. Theoretical and methodological directions have been formed on the basis of research on the use of secondary raw materials for the manufacture of insulation in construction. The comparative characteristic is carried out. The conclusion on the competitiveness of the presented materials in the market of construction materials is made. Practical value. Analysis of the application of modern technologies for recycling on the basis of the latest theoretical and practical approaches, with the subsequent elimination of shortcomings. Consideration of the possibility of adding flame retardants to the composition of materials. Use of materials as insulation of premises and buildings. Development of processing infrastructure of Ukraine.

scholarly journals Project "exchange of secondary raw materials and technology between northwest Russia and southeast Finland": perspectives and opportunities

2007 ◽  
pp. 671-677
Author(s):  
Maria Lyubarskaya ◽  
Vadim Chekalin
Keyword(s):  
Waste Management ◽  
European Community ◽  
Health Problem ◽  
Raw Materials ◽  
Waste Utilization ◽  
Gulf Of Finland ◽  
Waste Materials ◽  
Secondary Raw Materials ◽  
The City

Waste management and utilization of waste materials are current and remarkable problems inNordic Countries and, especially, in Russia, In the city of St. Petersburg and Leningrad oblastwaste causes a difficult environmental and health problem because plenty of waste is left tothe environment without relevant handling, As a result, it is obvious that a negativeenvironmental impact will occur to the whole region of Gulf of Finland. It is possible todevelop joint solutions for the waste problems in cooperation between Russian and Finnishparties especially for the regions in the adjacent areas of the border. Increasing of volumesimproves the profitability of waste utilization and makes it easier to execute the necessaryinvestments. This favours the exchange and trade of materials derived and/or refined fromwaste and necessary technologies, between Russian and Finnish actors.T ASIC project "Exchange of secondary raw materials and technology between NorthwestRussia and Southeast Finland" is financing by the European Community, represented by theCommission of the European Communities.

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