The use of ground granulated blast furnace slag is one of significant reserves to enhance the cost and technical properties of cement composites. slag corresponding to the portland cement fineness is often used. ultra-fine slags from industrial by-products with high specific surface area can be used with grinding technology development. two types of ultra-fine ground granulated blast furnace slag were studied in portland cement-slag compositions. the results of reduction of total binder amount per 1 kg of plasticizing admixture were obtained and discussed. reduction of binder amount was explained by water-reducing effects of plasticizing admixture in portland cement-slag compositions depending on type, quantity and fineness of slag.

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This article touches upon the relevant issue connected with a world-wide tendency to the development of territories around airports. Development directions of the Pulkovo Airport and its adjacent territories in Saint Petersburg and the Leningrad Region are considered. Core activities concentrating in airport zones and factors conditioning their attraction to these zones are revealed. The notion of an airport environ is disclosed and introduced. The research defines the urban-planning and economic factors which allow carrying out the economic regulation in zones adjacent to airports and their influence on the spatial development of such territories.The assessment of a change in the land value in the Pulkovo environ during its commercial development and the analysis of factors which form this value are given in the article. A number of problems of territories, which are under influence of the Pulkovo Airport, are revealed. Relying on results of the world experience analysis, authors note that the development of territories, located in the zone under influence of the Pulkovo Airport, shall take place in accordance with the single concept of the urban planning which does not depend on the administrative belonging of the territory and takes into account long-term strategic tasks and tools of the effective management.

The emergence of web technologies has created new conditions for improving the urban planning activities of municipal authorities in cities. The study focuses on the current state of the web-based urban management policies adopted in major Russian cities based on an analysis of 50 cities. It includes recommended measures that cities should take to improve and develop their technology assets. These are the websites of city governing bodies who are responsible for urban policy issues and geo information system (GIS) websites. The study addresses two questions, namely, how effectively cities are using web technologies in the area of urban management policy, and how governments and society communicate in the digital space. There is proposed a methodology for assessing the web resources of municipalities.

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