Browsing by Issue Date, starting with "2019-07-11"
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- The complex binder based on Portland cement andash-and-slag wastes from thermal power stationsPublication . Vysotskaya, Maryia; Fernandes, Paulo Alexandre Lopes; Parfionava, LiudmilaIncrease in the balance of boiler and furnace fuel of the energy sector of the Republic of Belarus the proportion of own energy resources (milling peat and wood chips) places priority on resolving the issues of utilization of ash-and-slag wastes and reducing the area of ash-and-slag disposal sites, which cause irreparable damage to the environment. A considerable amount of research has been devoted to the utilization of ash-and-slag wastes. There are more than 300 technologies of their recycling and use. Ash and slag wastes are used in the production of concrete, mortars, ceramics, heat and water insulating materials, road construction. The world experience shows the potential of 70-80% utilization of ash and slag, as, for example, in some European countries. However, the cost of the recycling of ash-and-slag wastes with the production and simultaneous neutralization of wastes can be higher than the cost of the production. One of the directions of the use of ash and slag wastes is the production on their basis of new types of complex binder that have increased strength and low prime cost. The replacement of a part of cement with active mineral additive allows to achieve significant saving of binder. The existing methods of the production of complex binders include the stages of joint or separate grinding of cement clinker and mineral additive with following mixing. Significant energy costs for grinding increase the cost of binder. In this regard, the development of the effective complex binder with the use of ash-and-slag wastes of the Belarussian state district power station in Orekhovsk using resource-saving technology is the actual research objective.
- Modeling and prototyping of composite productsPublication . Ziabkin, Yahor; Fernandes, Paulo Alexandre Lopes; Shabanov, DmitryNowadays, the technology of life cycle assessment of industrial products passes through the stage of changing the stage of existence in the market - from innovations to industrial application. In a couple of years ago there were practically no examples of projects using information models on the broad market, today the situation is changing, including because information modeling was noticed at the state level. The need to produce non-existent products inside the country stimulates investments in new production and re-equipment of existing facilities, and such projects must be implemented as quickly and efficiently as possible. The main task is to accelerate the implementation of the investment and construction project, reduce costs and increase the profitability of construction. The theme of the thesis corresponds to the branch program of the Republic of Belarus on the development and implementation of information technologies for integrated automation of design and life cycle assessment of buildings and structures. Master's work is an integral part of the state budget issue No. 2916 of the department of construction production "Development and research of innovative energy- and resource-saving materials, technologies using raw materials of the Polotsk region". The results of the work represent the possibility of modeling and introducing new types of periodic profiles, creation of 3D-printing technology for structures reinforced with composite reinforcement of periodic profile, creation of reusable end clamps of reusable use for testing composite reinforcement of various periodic profiles.