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Ecological Systems and Devices Annotation << Back
Analysis and assessment of the role of construction
and demolition work in improving the efficiency
of recycling of secondary building resources |
Lunev G.G.
The main volume of secondary building resources (SBR) is formed in the process of construction and dismantling works at reconstruction, technical re-equipment, modernization and major repairs of various industrial objects, housing, and special structures. The General educational process of General and structural SBR during the reconstruction is the stage of construction and dismantling works connected with disassembly of buildings and structures, structural elements and systems of the General infrastructure of data objects. According to generally accepted data on the share of construction and dismantling works at repair, modernization, the demolition of the old facilities and reconstruction accounts for up to 95 % of the total number of construction waste. The main feature of the construction and dismantling works is that they, as part of a General construction cycle for the reconstruction and keeping all its features and structure, main objective have, first of all, its complete destruction, not construction of a new production. The the most time consuming and technically complicated operation in construction and dismantling works is the dismantling and cutting construct an object on transportable items, dimensions of which are defined trucking and rail regulations and rules of transportation and weight – guests load-lifting mechanisms. The share of the transaction, the fall from 40 to 75 % of the complexity and cost of the entire cycle of construction and demolition works, it can be regarded as an important component in the development of technology and methods for processing of SBR and one of the ways of improving the efficiency of their use. In our opinion the main reason for this situation is that the technologies and methods production building and dismantling works are not considered specifications and the requirements of specific processing complexes on the technical parameters of the source SBR, and the process of construction and dismantling works is not synchronized with the operation of the processing industry. Especially it should be noted the importance of developing technologies and methods of production building and dismantling works to address the possibility of the use of secondary construction resources as a ready-made elements, materials, semifinished products, raw materials for various industries and their disposal and storage bases, firing ranges. The practice of showing and promoting a variety, that the most perspective way of processing of various SBR is a comprehensive approach to this problem, in which the primary sorting and preparation is carried out on the mounting site with the help of the equipment, technological equipment construction organizations, further – the final sorting, processing and bringing in кондиционное condition received semi – stationary complexes with further disposal of wastes on the bases, firing ranges.
Keywords: secondary building gresources (SBR); recycling; construction and demolition work; saving; processing; efficiency; economic impact; scientific and technical progress; solid waste; crushing and sorting complex.
Contacts: E-mail: spezstr@yandex.ru
Pp. 47-55. |
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