scholarly journals SPECIFIC FEATURES OF FILLERS FROM SAND-GRAVEL MIXTURE ON THE EXAMPLE OF THE VEDENSKOE DEPOSIT

Author(s):  
Т. С-А. Муртазаева ◽  
М. С. Сайдумов ◽  
А. Х. Аласханов ◽  
А. З. Абуханов

Представлены основные результаты исследований особенностей заполнителей из песчано-гравийной смеси (ПГС) Веденского месторождения Чеченской Республики. Приведены минералогический и петрографический составы известных месторождений ПГС Северного Кавказа. Изучены физико-механические и другие свойства как самих ПГС, так и отдельных их мелких и крупных фракций заполнителей. Получена зависимость стоимости бетонов на основе ПГС от класса бетона по прочности на сжатие. Представлены сравнительные данные бетонов на основе ПГС с бетонами на искусственном заполнителе - щебне. Доказана эффективность применения ПГС в технологии бетона после их обогащения и фракционирования, способствующих улучшению контактной зоны такого заполнителя и цементного камня и, как следствие, повышению прочности бетона. Работа выполнена при поддержке Российского фонда фундаментальных исследований» (РФФИ) в рамках научного проекта № 18-48-200001. The main results of studies of the features of aggregates from a sand and gravel mixture (SGM) of the Vedensky deposit in the Chechen Republic are presented. The mineralogical and petrographic compositions of the known deposits of SGM in the North Caucasus are presented. The physicomechanical and other properties of both the SGM themselves and their individual small and large aggregate fractions have been studied. The dependence of the cost of concrete based on SGM on the class of concrete in terms of compressive strength is obtained. Comparative data of concretes based on SGM with concretes based on artificial aggregate - crushed stone are presented. The effectiveness of the use of SGM in concrete technology after their enrichment and fractionation has been proven, which helps to improve the contact zone of such a filler and cement stone and, as a result, to increase the strength of concrete.This work is supported by the Russian Foundation for Basic Research (RFBR) in the framework of the scientific project No. 18-48-200001.

Kavkazologiya ◽  
2021 ◽  
pp. 205-232
Author(s):  
A.A. TUMOV ◽  
◽  

Over the post-Soviet period, the North Caucasus has been in the focus of Russian peacebuilding practices. Analysing the developments in Kabardino-Balkaria, we demonstrated the causal relationship between stabilisation by the federal centre and regional political dynamics. We used the framework drawn from conflict studies to interpret the strategies implemented by the national government and political settlement analysis to describe the dominant political settlements that emerged under the successive heads of the republic. The first political settlement was a result of institutional arrangement within a broad elite coalition with the late-Soviet nomenklatura in its foundation. Indirect rule by Moscow amounted to transfers of budget subventions in exchange for the provision of relative stability in the region. In the early 2000s, this political settlement failed to effectively respond to internal political problems; amidst federal recentralisation, the new political settlement was established in the republic. It was marked by reduced inclusivity of elites and greater dependence on the federal centre. This political settlement lacked success in tackling complications of elite cleavages and religious violence. In 2013, Moscow replaced the republican governor and constructed a new institutional arrangement with larger subservience to federal elites and substantial attention to security matters. Thus, peacebuilding practices implemented by the centre sought to stabilise the situation in the region; it resulted in a successful tightening of vertical elite control but at the cost of reducing the inclusiveness of the political system within Kabardino-Balkaria.


Author(s):  
Ekaterina Stepanova

The chapter explores how, despite earlier counterterrorism failures and two bitter wars in Chechnya, terrorism in Russia has declined in the 2010s. The Islamist-separatist terrorism problem that used to dominate national politics was degraded to a relatively peripheral issue that hovers at a level of persistent, but low-scale and increasingly fragmented violence, primarily in the North Caucasus. However imperfect, interim and incomplete, a ‘solution’ that has worked out in the Russian case was not ‘war’. This ‘solution other than war’ was made possible by certain developments outside Moscow’s direct control, such as the internal split within the insurgency catalyzed by its increasing jihadization, and resulted from a combination of the policy of Chechenization, shifts in federal security strategy towards smarter suppression and prevention, and massive reconstruction and development assistance. While this solution is no substitute for addressing the underlying structural causes of violent extremism and has involved enormous security, financial, human rights and governance costs for the nation, these costs are much lower than the cost of war. This is seen as one of the key broader lessons to be gleaned from Russia’s response to terrorism. It also explains why Russia has a genuine interest in ensuring that this degree of stabilization and decline in terrorism of North Caucasian origin is not distorted or reversed by new destabilizing factors, including transnational influences and connections.


2012 ◽  
Vol 40 (3) ◽  
pp. 303-314 ◽  
Author(s):  
David S. Siroky ◽  
Valeriy Dzutsev

Although the 2008 Russian-Georgian war was a military defeat for Georgia, it has only reinforced Georgia's westward trajectory. One noteworthy difference from Georgia's pre-war policy is a new regional strategy — the North Caucasus Initiative — that seeks to create a soft power alternative to Russia's military dominance in the region. We suggest that this approach is rational rather than reckless, as some critics have claimed. It represents a carefully calculated strategy that is already benefiting Georgia and from which all concerned parties, including Russia, stand to gain. If the South and North Caucasus were more open and less divided — a direction in which this new initiative appears to point — the Caucasus could become more prosperous and more stable. That would serve Russia's long-term interest by significantly reducing the cost of subsidies to sustain and stabilize the volatile region.


Author(s):  
D.E. SLIZOVSKIY ◽  
N.P. MEDVEDEV

The review analyzes not only the content of the article Russian roots in Crimea written by the famous scientist-researcher L. F. Boltenkova and published in journal Issues of National and Federative Relations No. 8, Vol.9, 2019, but also explores the logic of presentation. An attempt is made to answer the question why such studies appear in the scientific literature today. The article, albeit briefly, but clearly traces a historical connection of the territories that form modern Russia: Crimea, the North Caucasus, the Volga region, Siberia, etc. since the time B.C. Historically, Russian roots appeared in Crimea naturally, in the period before Kiev Rus, they strengthened during the Kiev period of the Ancient Russian state. Due to the loss of sovereignty by Kiev and its entry into the Lithuanian-Polish state, successive Russian relations with Crimea were historically carried out by North-Eastern Russia (Moscow). Although the main form of communications was attack-defense, but they forged the victory of Russia (Moscow) at the cost of incredible victims.


2019 ◽  
pp. 342-348
Author(s):  
D.E. SLIZOVSKIY ◽  
N.P. MEDVEDEV

The review analyzes not only the content of the article Russian roots in Crimea written by the famous scientist-researcher L. F. Boltenkova and published in journal Issues of National and Federative Relations No. 8, Vol. 9, 2019, but also explores the logic of presentation. An attempt is made to answer the question why such studies appear in the scientific literature today. The article, albeit briefly, but clearly traces a historical connection of the territories that form modern Russia: Crimea, the North Caucasus, the Volga region, Siberia, etc. since the time B.C. Historically, Russian roots appeared in Crimea naturally, in the period before Kiev Rus, they strengthened during the Kiev period of the Ancient Russian state. Due to the loss of sovereignty by Kiev and its entry into the Lithuanian-Polish state, successive Russian relations with Crimea were historically carried out by North-Eastern Russia (Moscow). Although the main form of communications was attack-defense, but they forged the victory of Russia (Moscow) at the cost of incredible victims.


Author(s):  
Т.С-А. Муртазаева ◽  
М.С. Сайдумов ◽  
А.Ш. Джандаров ◽  
Д.Х-Б. Абдрахманова

Результаты сравнительных испытаний местного и привозного крупного заполнителя на прочность при сжатии в бетонах разных классов. Проанализирован характер разрушения бетона. Представлены некоторые пути решения проблемы обогащения крупного заполнителя.Работа выполнена при финансовой поддержке РФФИ в рамках научного проекта № 18-48-200001. Results of comparative tests of local and imported coarse aggregate for compressive strength in concretes of different classes. The nature of concrete destruction is analyzed. Some ways of solving the problem of coarse aggregate enrichment are presented.This work was carried out with the financial support of the Russian Foundation for Basic Research in scientific project No. 18-48-200001.


Author(s):  
W.N. Reynolds

Following the 2007/08 drought, we experienced poor pasture production and persistence on our dairy farm in north Waikato, leading to decreased milksolids production and a greater reliance on bought-in feed. It is estimated that the cost of this to our farming operation was about $1300 per hectare per year in lost operating profit. While climate and black beetle were factors, they did not explain everything, and other factors were also involved. In the last 3 years we have changed our management strategies to better withstand dry summers, the catalyst for which was becoming the DairyNZ Pasture Improvement Focus Farm for the north Waikato. The major changes we made were to reduce stocking rate, actively manage pastures in summer to reduce over-grazing, and pay more attention to detail in our pasture renewal programme. To date the result has been a reduced need for pasture renewal, a lift in whole farm performance and increased profitability. Keywords: Focus farm, over-grazing, pasture management, pasture persistence, profitability


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