Demolition of buildings and structures, or their structural elements, is primarily aimed in designing stage – for the reconstruction or renovation of a building or complex of buildings, updating the appearance, design or philosophical meaning of an object. Therefore, demolition must be approached no less responsibly than the construction itself. The article deals with data on the economic feasibility of a correct approach to demolition, which allows the maximum extraction of raw materials from construction waste for further construction. The article provides a brief overview of the technologies for demolition structures to select the optimal and most effective. For the best use of the existing knowledge on this subject, and as a result – obtaining the greatest economic benefit, it is proposed to classify demolition technologies, their description and recommendations for use. For this, it was proposed to create a certain database that can, in an interactive form, help to choose the optimal technology for demolition a building or a separate structure.

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Одеська державна академія будівництва та архітектуриСтаття присвячена питанню підвищення показника звукоізоляції в конструкції стінової панелі. Для вирішення такої проблеми було проведено аналіз впливу частоти і гранулометричного складу суміші на значення індексу звукоізоляції. Також було показано варіювання величини звукоізоляції в залежності від товщини стінової панелі, яка була виготовлена з використанням гумової крихти. Розглянуто способи отримання і спектр застосування в сучасній промисловості гумової крихти, як матеріалу подрібнення зношених шин, що є одним з найбільш багатотоннажних полімерних відходів. Проілюстровано структуру установки звукоізоляційних панелей під час проведення експерименту. Результати визначення рівня звукоізоляції були порівняні та представлені на діаграмах для кожної групи окремо.Ключові слова: звукоізоляція, рециркульована гумова панель, індекс звукоізоляції, діапазон частот.

This study examines the thermal insulation properties of panels made from recycled rubber. The reasons, in addition to the use in construction, are environmental protection, sustainable development, energy conservation. The thermal conductivity coefficient λ is the main characteristic, on the basis of which a decision is made on the choice of material as a heat insulator. Materials with λ <0.2 W / (m · K) are heat-insulating. Tested 3 composition of the material of different particle size distribution. It is shown that the key parameters that determine the heat-shielding properties of a material are its density and particle size distribution. It has been confirmed that with decreasing density the insulating properties of materials are improved. Compositions consisting of small grains have the best heat-insulating properties. After samples with grains of small size, in order of deterioration, samples of grains of large size and, finally, samples of mixed particle size distribution follow. The results also showed that the amount of binder in this case is negligible (4.2-7.5%) and practically does not affect the insulating properties of the material. Abstract: This study discusses the thermal insulation properties of panels made from recycled rubber. The reasons, in addition to the use in construction, are environmental protection, sustainable development, energy conservation. The thermal conductivity coefficient λ is the main characteristic, on the basis of which a decision is made on the choice of material as a heat insulator. Materials with λ <0.2 W / (m · K) are heat-insulating. Tested 3 composition of the material of different particle size distribution. It is shown that the key parameters that determine the heat-shielding properties of a material are its density and particle size distribution. It has been confirmed that with decreasing density the insulating properties of materials are improved. Compositions consisting of small grains have the best heat-insulating properties. After samples with grains of small size, in order of deterioration, samples of grains of large size and, finally, samples of mixed particle size distribution follow. The results also showed that the amount of binder in this case is negligible (4.2-7.5%) and practically does not affect the insulating properties of the material.