Advanced Materials Research Vol. 1020

Abstract: Every construction investment is a project requiring close coordination, the freedom of access to the information, the application of special activity techniques and most of all the high level of maturity of construction project management. Findings of research conducted in different areas of project management confirm that the assurance of high level of project management maturity conditions the achievement of project's success. The higher level of maturity means the greater degree of capability to manage a construction project. The aim of the article is verification of the following hypotheses: H1: Polish construction companies in a small extent use integrated management of construction project. H2: The highest maturity of construction project management appears in knowledge areas connected with cost management and time management H3: The lowest maturity of construction project management appears in the areas of knowledge connected with risk management and communication management. The study reported in this article was conducted during 2013 year in the construction sector. The survey method was applied in research process. The research embraced 23 construction companies. The respondents are managers of the highest and medium level of management in construction companies. The respondents indicated one out of five maturity levels for selected nine knowledge areas: Level 1: „Initial”, Level 2 “Evolving”, Level 3 “Perfecting, Level 4 “Accomplished” and Level 5 “Optimizing”. Based on the results of an analysis into the level of maturity of project management processes in Polish construction companies, the overall process management maturity indicator for all functions is 3.34. All three hypothesis were verified positively.

Abstract: The main part of the territory of the Republic of Armenia is a mountainous landscape, where the water supply problems of the located areas are directly connected with the existing types of water sources and the peculiarities of their formation.  The report is an overview of implementation and operation features of medium size residential areas’ water supply systems dispersed in the surrounding of Mount Aragats, by which their long uninterrupted work are provided with.

Abstract: During recent years small hydropower sector is being rapidly developed, especially in the mountainous countries with extensive network of small rivers. Investigation of many fish passes built on water intakes in some CIS countries, have shown that they usually do not work effectively. Normative documents regulating work of fish passes, usually developed for a constant water level in the upstream of intake structures. That is why even water level minor fluctuations at upstream, disrupt of hydraulic regime of the fish pass stream, which prevents the fish migration. The article provides performance of fish passes at a constant velocity in the fish pass stream regardless of water level fluctuations in the upstream. For this purpose it is recommended to construct the walls of fish pass stream with a variable roughness. The equation derived, describing the dependence of the relative roughness of the walls of a rectangular stream from the water level in it. A calculation algorithm for the design of the fish pass provided.

Abstract: The need for modernization and adjustment of existing road infrastructure to European Union requirements will result in the need for processing thousands tones of waste. The amount of waste received from road repairs and road demolitions, as well as technological by-products in Poland may be estimated at the level over 2.5 million tones, which is almost 2% of all waste production. Construction waste recycling is truly justified in this case, together with waste management according to the provisions of national and international law. One of such products is dust generated as a side effect of stone processing in a Casey mine in Ireland. Laboratory tests of the new material compositions with the use of waste from this mine not only realize the general aims of economic and ecological assumptions, but also allow increasing quality of a new product which is an asphalt-concrete composite. In order to check the properties of the use of a filler in a form of Hornfels Ireland powder there was conducted a series of special tests on the asphalt concrete testing the wearing course. Hornfels Ireland powder produced as a waste material of an aggregate processing in Cassey Quarry is a useful material, which may be successfully used as a component in a process of WMA production.

Abstract: The artistic expressions, constructive techniques, national cultural values of monument buildings, their succession and maintenance problems are especially perceptible and appreciable when observed in their historical environment.Monuments can be observed in two main groups according to their location: natural and urban landscape groups. Naturally, landscape changes over years undergoing construction development and different natural or anthropogenic influences. Of course much more structural problems are notable in urban contexts, since they are much more susceptible to dynamic changes in urban environment.The above mentioned problems are various in Republic of Armenia (RA): as a result of spontaneous development and incorrect land use monuments often lose their vitally important natural environment, perspective and landscape silhouette.This article mainly deals with the structural and panoramic problems of landscape, emerged in the environments of monument buildings in RA. They have been studied by comparative analysis based on the examples of existing monuments both in urban structure and natural landscape.Based on photographical comparison, analysis of literature, software and metric gauging methods it will be possible to reveal the planning, climatic, anthropogenic negative, neutral and positive factors affecting the modification of protection zones of monuments in RA.As a result it becomes possible in particular situations to neutralize much of the existing negative factors. The study will give an opportunity to solve some problems of already modified environments or landscape continuous degradation by developing rehabilitation projects, providing new interesting solutions related to the aesthetic and technological aspects, as well as the materials that are being used.

Abstract: The aim of this paper is to study the possibility of expanded obsidian and its modified product use for oil sorption, in that tetraethoxisilane (TEOS) has been used as a modifier. The optimal concentration of the modifier was determined by 50 per cent weight of expanded obsidian. The expanded obsidian was previously activated with 0,1 M solution of hydrochloric acid. IR spectrometry was used to characterise structural changes in the modified expanded obsidian samples. To determine water sorption capacity a series of experiments has been carried out. The analysis of obtained experimental data showed that after surface modification of expanded obsidian water capacity is reduced 3 times after the surface modification of EO.

Abstract: As one of the prominent cities across the world holding the idea of urban spatial justice, Perth, the capital city of Western Australian, promotes the concept of “harmony between urbanization and nature”. Perth is applied as the case study on the basis of Edward Soja’s theory of “Spatial Justice” and Page’s theory of “Intra-generational Equality” via empirical approach to inquire into the coordinated and balanced development of three elements in urbanization of Perth: economy, society and environment. It articulates the temperance to the existing environment and natural resources as the core value when promoting “Intra-generational Equality” and refers to the equal allocation and rational consumption of the existing environment and natural resources as the spatial equality in Perth. In addition, another focus goes to the analysis of the relation between the scientific urban management systems and the low-carbon spatial justice, and it is “Intra-generational Equality” that proves to be the basic premise and foundation on which the relation counts, which serves as a reference to the international metropolis’ urban spatial justice across the world.

Abstract: Further development of the RA water supply and sanitation sphere requires economic, technical, institutional and financial reforms. Therefore, the elucidation of state policy and strategic trends of development for the mentioned sphere is highly essential for its future improvement. Hence, organizational and financial investments are required to ensure reliable, safe, permanent and continuous water supply, system security, environmental sustainability, financial upgrading of the system making it fully manageable, efficient, attractive and self-sustaining for the investors and private businesses based on financially healthy, sustainable and vital water supply and sanitation organizations.

Abstract: After operation of ground hydraulic constructions, it is necessary to implement monitoring during several years; which includes collecting data concerning filtration flow, deposition, strength, sliding and stability of dams and other hydraulic constructions. The technical state study conclusions are drawn upon the collected data analyses. The aim of the work is to make a technical state study of Khachen reservoir hydro system to find out the further exploitation opportunities separated nodes, to process engineering measures program, by the realization of which there will be established conditions for their further safe operation. For the above mentioned purpose there have been implemented the followings: technical data analyses of the dam and it’s separate nodes, technical-economic analyses of the dam, analyses of storage alluvium, net volume and water balance, physical-mechanical properties lab studies of dam ground. Homogeneity estimation of dam by geophysical methods, discovering of filtration centralized discharge across dam and lateral prism, making conclusions, separate nodes description located in the dam, technical state analyses and making conclusions, strength and stability analyses of the dam under static and seismic loading conditions, taking into consideration the ground laboratory experiments and dam geodetic measurements.

Abstract: In the article represented specificity`s price formation process strength of technical activity hydro social cycle in the Republic of Armenia.Analysis of drinking water consumption is done with respect to three groups: standpoint of interest domestic farms, especially in industry and farmers.Industry included all subjects of services and products maker in economy, which is not included in domestic farms or agriculture fields. Appear from industry field include for example: nitrogenous factory, power generation company, banks holding, railways, hospitals and the others.Drinking water supply and waste water derivations services have six important technical directions in hydro social cycle: water intake, drinking water conditioning, drinking water distribution, waste water collecting, waste water reconditioning and derivations:Here are calculated unit cost, overhead and cross costs for each process fabrication, and corresponding its we create hypothetical named average unit cost, as well as average overhead and cross costs.In the article we analyse, that we can improve water supply options in the domestic farms, industry and agriculture fields.