The paper is devoted to the study of waste processing of shungite rocks, which are formed in the process of mining and technological operations. However, the market of national modifying additives based on local raw materials is not developed at the appropriate level in the presence of a rich resource base of the mining industry. In this regard, it is of great interest to obtain additives based on shungite rock processing waste, which allow expanding the range of mineral additives and providing qualitatively new properties for concrete and reinforced concrete products and structures. Such technologies for the production of additives are isolated and not developed at the proper level due to insufficient knowledge of shungite rocks. Analysis of the state of research on concrete and the market for modifying materials showed that the development of production of energy-efficient and environmentally friendly materials due to increasing regulatory requirements for them, as well as to environmental ecology and the obvious need to recycle industrial waste initiated the progressive development of concrete science. One of its latest achievements is modified concrete with special properties, which marked a new stage in the development of concrete. In its production technology, significant progress has been made in improving its chemical additives, special modifiers, as well as active and inactive fillers. In Kazakhstan, the main volume of modifying additives is imported from abroad, which significantly increases their cost, so their choice is limited. This paper is devoted to the research of waste processing of shungite rocks as a modifying mineral additive of concrete. Its influence on the main indicators of concrete is investigated and the features of the processes that occur in the hardening silicate system “cement - dispersed shungite particles” and contribute to increasing the strength of concrete, as well as reducing the duration of its heat-and-water treatment are studied.
Introduction: The increase in the volume of housing construction per capita per year to the level of the eco-nomically developed countries, the tasks of further progressive economic and social develop-ment of the country can be achieved with a corresponding increase in the production of con-struction materials. Materials and Methods: The solution of this task is largely connected with the development of resource- and energy-saving technologies for the production of efficient light construction materials based on wastes from various industries, in particular on wastes of plant origin, which contributes to the expansion of the production range of light, smooth granulated aggregates and light insulating concrete based on them with modifying additives that increase and improve the physical and technical characteristics of these materials. Results and Discussion: There are known technologies for producing light aggregates, mainly by firing. As energy re-sources became more expensive, there was an urgent need to develop easy-to-fill technology in a cost-effective manner. Conclusions: This paper considers a method for producing a light aggregate based on wood processing waste by granulation in a dish granule torus, which is a plate with an inclination angle of 45 0 and the number of mob companies 17-19 rev/min.
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