Circular Economy: Challenges and Opportunities in the Construction Sector of Kazakhstan

Torgautov, Beibut; Zhanabayev, Asset; Tleuken, Aidana; Türkyılmaz, Ali; Mustafa, Mohammad; Karaca, Ferhat

doi:10.3390/buildings11110501

Cited by 61 publications

(36 citation statements)

References 18 publications

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“…Many studies discussed the application of environmental, social, and governance objectives in the building sector to achieve sustainable buildings [32][33][34][35]. The efficient structural design could mitigate the excessive waste and environmental impacts of the construction materials, while still lowering the cost of the structure [36,37].…”

Section: Introductionmentioning

confidence: 99%

Effects of Concrete Grades and Column Spacings on the Optimal Design of Reinforced Concrete Buildings

Rady

Mahfouz

2022

Materials

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This paper investigates the effects of concrete grades and column spacings on the optimal design of reinforced concrete (RC) buildings. To this end, cost design optimization was performed for buildings with three different floor systems: flat plates (FS), flat slabs with drop panels (FSDP), and solid slabs (SS). The evolutionary method provided by the Excel solver was used as the optimization algorithm because it can deal with the complex nature of structural design problems. The objective function was the total construction cost of the building, including the costs of concrete, reinforcement bars, labor, and formwork, while still fulfilling the constraints of the Egyptian code of practice (ECP-18). The applicability of the presented algorithm was investigated in a design example, where the tuning of the evolutionary algorithm control parameters was sought, and the best parameters were investigated. Two case studies were employed to study the impacts of changing the column spacing and concrete grades on the optimal cost for each floor system. The results showed that low concrete grades, (i.e., characteristic strength up to 40 MPa) and column spacings up to 5 m are preferred in terms of direct construction costs for low-rise RC residential buildings.

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Section: Introductionmentioning

confidence: 99%

Effects of Concrete Grades and Column Spacings on the Optimal Design of Reinforced Concrete Buildings

Rady

Mahfouz

2022

Materials

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“…Modern facilities of the mainline service demonstrate a wide variety of planning solutions and architectural and artistic forms. The problem that has arisen at this stage of roadside service development (including in Kazakhstan, where there are a number of promising opportunities in the construction sector (B.Torgautov, A.Zhanabayev, A.Tleuken, A.Turkyilmaz, M.Mustafa, F.Karaca, F. [1]), the problem of accelerated, almost one-time construction of a large number of facilities puts forward a number of peculiar tasks that have not yet received appropriate research work (N.N.Kuanyshbekov, A.K.Tuyakaeva [2]).…”

Section: Introductionmentioning

confidence: 99%

Prospects of Triangular Modular Structures for Roadside Service Buildings

Samoilov¹,

Kuspangaliyev²,

Sadvokasova³

et al. 2022

Preprint

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The need for a relatively quick solution to the problem of providing highways with roadside service facilities necessitates the development of a series of appropriate standard projects. To increase the efficiency of these series, it is advisable to carry out the interconnection of space-planning solutions based on a particular module. Taking into account the variety of planning and landscape characteristics of the sites for the placement of objects of the mainline service, it seems advisable to choose as a module not a square or rectangular, but a triangular configuration, which allows in most cases to harmoniously block the modules. The proposed roof module in the form of a "regular" triangle facing the tetrahedron has a structural basis in the form of a single-tier rod spatial plate. The principal space-planning solutions of all four dozen objects from the approved nomenclature of the mainline service performed in the process of analyzing the possibilities show the real possibility of solving the development tasks on the basis of this system. The use of the proposed modular system makes it possible to successfully solve a number of tasks to reduce the harmful impact on the environment and effectively use renewable energy sources.

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“…CACs include the following countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Turkmenistan, and Tajikistan [18]. CACs each have their own unique features, making their economic and political status different from each other.…”

Section: Introductionmentioning

confidence: 99%

“…The available research shows that the circular economy is a less researched concept in Central Asia. The authors' previous research includes studying barriers and opportunities of a CE in Kazakhstan [18,19]. Other existing papers have a narrow focus on a specific application of methods, such as the use of metallurgical slag [20], the legal framework for e-waste [21], emissions from municipal solid waste green clusters [22], pollution of water by oil [23] and sustainable energy transition [24].…”

Section: Introductionmentioning

confidence: 99%

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Legislative, Institutional, Industrial and Governmental Involvement in Circular Economy in Central Asia: A Systematic Review

et al. 2022

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As the world faces the detrimental effects of humanity on the environment, the circular economy has started receiving a lot of attention as a tool to keep the value of resources. Although in Europe, circular economy principles have become a trend much earlier, CACs still face challenges in adopting them. The current research aims to review the available literature on sustainability, green economy, and circularity development through the adoption of political, industrial, and financial instruments, followed by an assessment of the barriers and opportunities to circular economy development in the CACs. The novelty of this research lies in the systematic review of different state-of-the-art data resources (journal papers, policies, news, and reports) of CACs by different categories: policy regulations, energy, waste, education, water, and agriculture. This research addresses that the CACs have similar circular economy development barriers (e.g., wide use of fossil fuels, water shortage, and lack of effective waste management) and opportunities (e.g., orientation towards sustainable development, foreign cooperation, and green financing). Therefore, performing effective strategic plans that are already directed to circularity, ensuring stakeholders’ involvement, and providing sufficient funding could benefit their circular economy development.

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Circular Economy: Challenges and Opportunities in the Construction Sector of Kazakhstan

Cited by 61 publications

References 18 publications

Effects of Concrete Grades and Column Spacings on the Optimal Design of Reinforced Concrete Buildings

Effects of Concrete Grades and Column Spacings on the Optimal Design of Reinforced Concrete Buildings

Prospects of Triangular Modular Structures for Roadside Service Buildings

Legislative, Institutional, Industrial and Governmental Involvement in Circular Economy in Central Asia: A Systematic Review

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