scholarly journals MORTAR FILLERS FROM TECHNOGENIC SAND

Author(s):  
А. С. Успанова ◽  
З. Х. Исмаилова ◽  
В. Х. Хадисов ◽  
М. Р. Хаджиев

Вопросы ресурсосбережения являются приоритетными в промышленности строительных материалов и изделий, все большее распространение получает применение техногенного сырья в строительных композитах. Это диктуется необходимостью утилизации техногенных отходов, повышением экономической эффективности производств и вопросами защиты окружающей среды. Особый интерес в проектировании составов строительных растворов представляет применение местных некондиционных песков, техногенных песков из отсевов бетонного лома и кирпичного лома. Данная статья посвящена исследованию зернового состава отсевов дробления бетонного лома и кирпичного боя, возможности создания рецептур строительных растворов на мелких песках с их использованием. Для большинства регионов нехватка крупнозернистых песков является особо актуальной, так как без их наличия производство бетонов и растворов высокого качества проблематично. Одним из способов решения данного вопроса является применение отсевов и мелких фракций дробления вторичного сырья, пригодного для использования в качестве заполнителя по химико-минералогическому и гранулометрическому составу. В результате рециклинга вторичного сырья образующие мелкие фракции отсевов представляют большой интерес для применения в качестве крупнозернистых песков или обогащающего материала для мелких песков с низким модулем крупности. Resource-saving issues are a priority in the building materials and products industry; the use of technogenic raw materials in building composites is becoming more widespread. This is dictated by the need to utilize industrial wastes, increase the economic efficiency of production and protect the environment. Of particular interest in the design of mortar compositions is the use of local substandard sand, industrial sand from screenings of concrete scrap and brick scrap. This article is devoted to the study of the grain composition of screenings for crushing concrete scrap and brick fighting, the possibility of creating mortar formulations on fine sand with their use. For most regions, the shortage of coarse-grained sand is especially urgent, since without their presence the production of concrete and high-quality mortars is problematic. One of the ways to solve this issue is the use of screenings and small fractions of crushing secondary raw materials suitable for use as a filler in chemical-mineralogical and particle size distribution. As a result of recycling of secondary raw materials, the fine screening fractions are of great interest for use as coarse-grained sands or an enrichment material for fine sands with a low modulus of fineness.

2018 ◽  
Vol 22 (6) ◽  
pp. 49-53 ◽  
Author(s):  
S.-A.Yu. Murtazaev ◽  
M.Sh. Salamanova ◽  
M.S. Saidumov ◽  
A.Kh. Alaskhanov

A review of the use of industrial wastes in our country and abroad was conducted, and prospects for using man-made raw materials at the Grozny CHP and wastes of subsurface rocks crushing were considered. The analysis of the results of the conducted research is carried out, which showed that secondary technogenic raw materials can successfully compete and replace exhaustible natural resources, since the chemical composition and qualitative parameters of the materials under study confirm its uniqueness and, moreover, there is can see a solution of environmental problems. The formulation of multicomponent binders and concretes based on fine-dispersed ash microspheres and enriched artificial aggregates promoted recycling of secondary raw materials and improvement of the ecological situation in the region.


2019 ◽  
Vol 974 ◽  
pp. 379-385
Author(s):  
Alexander E. Fomin ◽  
Ruslan V. Lesovik ◽  
E.S. Glagolev ◽  
Sergey V. Biryukov

The paper investigates the surface wet magnetic separation (WMS) technogenic raw materials concentration tailings particles properties. The mechanical activation effect nature on the binder structural and phase characteristics is revealed. High pozzolan activity of WMC tails, which consists in genetic and morphological features of the surface of poly-mineral structures has been established. During mechanical activation of lime together with WMS tailings, an increase in the number of neoplasms occurs in the amorphous phase form with a low degree of polymerization, which is confirmed by the acid-soluble SiO2presence, as well as by X-ray phase analysis. The work results indicate a WMC waste particles surface high energy potential for its use in building materials for autoclaved hardening. This study will contribute to the energy and resource-saving technologies development, the solution of environmental problems in order to create a comfortable environment for life and work.


Author(s):  
У.Д. Тотурбиева ◽  
С.А. Мамаев ◽  
Б.Д. Тотурбиев

Отмечается актуальность разработки и внедрение инновационных наукоемких, энерго-ресурсосберегающих, экологически чистых, высоких технологий из минерального и техногенного сырья в различных отраслях промышленности. При этом важная роль в использовании сырьевых ресурсов в строительной отрасли принадлежит промышленности строительных материалов, особенно использованию природного сырья и в этой связи разработке инновационных проектов, позволяющих осуществлять освоение месторождений нерудного сырья, в том числе вскрышных пород, включая добычи, переработку и производство строительных материалов. Практикой установлено, что производство строительных материалов из техногенного сырья обходиться намного дешевле, чем использование природного нерудного сырья, поскольку некоторые отходы производства можно применять без соответствующей обработки, то есть исключаются технологические операции добычи, обработки, транспортировки, хранения, контроля, являющиеся частью общего производственного процесса. Приводятся результаты теоретических и экспериментальных исследований проведённых в Институте Геологии ДНЦ РАН с целью применения глинистых сланцев, аргиллитовых глин, кремнеземистого и техногенного сырья для изготовления вяжущих веществ, теплоизоляционных и стеновых материалов нового поколения, получаемых по инновационной, наукоемкой, низкообжиговой и безобжиговой, следовательно, энерго-ресурсосберегающей технологии. The relevance of the development and implementation of innovative high-tech, energy-resource-saving, environmentally friendly, high technologies from mineral and industrial raw materials in various industries is noted. At the same time, an important role in the use of raw materials in the construction industry belongs to the building materials industry, especially the use of natural raw materials and, in this regard, the development of innovative projects that allow the integrated development of nonmetallic deposits, including overburden, including mining, processing and production of building materials. It has been established by practice that the production of building materials from technogenic raw materials is much cheaper than using natural non-metallic raw materials, since some production wastes can be used without proper processing, that is, technological operations of extraction, processing, transportation, storage, and control, which are part of the overall production process, are excluded. The results of theoretical and experimental studies carried out at the Institute of Geology of the Dagestan Scientific Center of the Russian Academy of Sciences with the aim of using shale, argilite clay, silica and technogenic raw materials for the manufacture of binders, heat-insulating and wall materials of the new generation, are obtained from innovative, high-tech, low-firing and unburned, therefore, energy resource-saving technology


2021 ◽  
Vol 13 (2) ◽  
pp. 224-237
Author(s):  
Valentin CHANTURIA ◽  
◽  
Irina SHADRUNOVA ◽  
Olga GORLOVA ◽  
◽  
...  

Innovative processes of deep and complex processing of technogenic raw materials in the context of sustainable development of the mining industry and the economic challenges facing the mining industry should ensure the transition to a circular economy and the maximum use of natural resources. The article reflects the priority scientific and technological research on the involvement of technogenic mineral resources in efficient processing. Presented, developed at ICEMR RAS, including jointly with universities, research and production organizations and enterprises, modern innovative processes of deep and environmentally friendly processing of refractory mineral raw materials of complex material composition (tailings of enrichment of non-ferrous and noble metal ores, poor off-balance ores, slags ferrous and nonferrous metallurgy, sludge of metallurgical production) and hydro-mineral technogenic resources (acidic mineralized bottom-dump waters of mining enterprises of the copper-zinc complex of the Urals, saponite-containing circulating waters of diamond processing factories). Among other things, new directions in the field of selective disintegration of finely dispersed mineral raw materials based on energy effects and deep processing of slags are outlined; increasing the selectivity of enrichment processes; combined processing of technogenic raw materials; resource-saving processing of technogenic and hydro-mineral resources, obtaining secondary products from processing waste. It is shown that in the face of new economic challenges, Russia has sufficient scientific and technological potential in the field of deep and environmentally safe processing of technogenic raw materials in the form of developed and, to varying degrees, tested innovative resource-saving technologies that correspond to the world level, and in a number of technologies are superior to it.


2021 ◽  
Vol 4 (1) ◽  
pp. 27-34
Author(s):  
S-A.Yu. Murtazaev ◽  
A. Uspanova ◽  
M. Hadzhiev ◽  
V. Hadisov

during the implementation of the program to restore the housing stock of the Chechen Republic, as well as during the planned demolition of dilapidated housing, significant volumes of technogenic raw materials were generated, in particular, large volumes of brick and concrete scrap. Enterprises for the production of building materials and products also produce significant volumes of production defects, which accumulate over the years at landfills. Ceramic broken brick and broken brick dropouts are used to fill the roadbed, and the main part still goes to the dump and landfill, which is also an environmental problem. One of the promising ways to use dropouts and broken brick itself is to use them as secondary aggregates in concrete and mortars. This article discusses the issues of improving the quality of ceramic concrete mixtures, choosing the optimal composition and technology for mixing concrete mixtures using dust fractions of dropouts for crushing ceramic brick bricks


2019 ◽  
Vol 974 ◽  
pp. 356-361
Author(s):  
O.V. Kuznetsova ◽  
N.D. Yatsenko ◽  
A.I. Subbotin ◽  
M.Yu. Klimenko

The modern building materials market places high demands on heat-insulating and heat-insulating structural materials. In this connection, the issues of developing high-quality building materials obtained on the resource-saving technologies basis allowing to solve two interrelated problems are topical. The first problem is the industrial waste generated and existing stocks disposal. The second is associated with a decrease in the traditional raw materials deficit [1]. These problems solution, combining rational technological solutions, is based on the scientific research achievements in this area, in particular in the foam glass production. The priority scientific research areas in the foam glass materials production are the developments related to the study, the new raw materials use and the production of foam glass mixture compositions on their basis, which provide, along with the necessary performance properties, high environmental safety requirements [2, 3].


2018 ◽  
Vol 931 ◽  
pp. 578-582
Author(s):  
Natalia D. Yatsenko ◽  
N.A. Vil'bitskaya ◽  
A.I. Yatsenko

The article deals with the use of blast furnace slag and mineralising additives as raw materials for the production of building materials. Innovative technologies of brick production from natural raw materials and industrial wastes are developed.


2021 ◽  
Vol 2131 (4) ◽  
pp. 042035
Author(s):  
E Lytkina

Abstract Today, the waste of the mining industry is more than 8 billion tons. Analysis of the literature data showed that most of the man-made waste that is generated as a result of the development of mineral deposits is suitable for use in many industries, in particular, in the production of building materials. The use of technogenic raw materials allows us to solve the following tasks: Environmental aspect - reducing the number of dumps and reducing their volumes. And this, in turn, improves the ecology of regions and territories. 2. Economic aspect - reducing the cost of construction products through the use of almost free raw materials, the release of more competitive products. Of course, it is necessary to provide that part of the costs will be spent on additional processing, revision, activation, modification of this technogenic raw material component. But today we have to think about how to clear the territory of substandard “waste rock” and use it to reduce the production and consumption of natural raw materials. A similar process can create waste-free production.


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

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


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