scholarly journals Architectonics of domed temples of modern Ukraine

2021 ◽  
Vol 1203 (2) ◽  
pp. 022105
Author(s):  
Bohdan Cherkes ◽  
Oksana Diachok ◽  
Oleksandra Kolodrubska ◽  
Sofiia Myroniuk ◽  
Chuyko Oleg
Keyword(s):  
Building Materials ◽  
Fine Arts ◽  
Construction Materials ◽  
Field Research ◽  
Scientific Work ◽  
National University ◽  
New Construction ◽  
University Department ◽  
Canonical Type ◽  
Architecture And Design

Abstract The article highlights some results of scientific work conducted by the Institute of Architecture and Design of Lviv Polytechnic National University, Department of Fine Arts and Design, Ternopil Pedagogical University, Department of Design Architectural Environment Lviv National Agrarian University and Art TheoryVasyl Stefanyk Precarpathian National University.Scientists study the art of temple building on the territory of Ukraine. The analysis was conducted based on reliable sources - archival, publications of leading scientists, their own field research. The method of field inspections included visual inspection of sacred complexes, architectural measurements, photography, sketches, etc. The aim of the scientific work is to study the genesis of the architectural and constructive creation of the sacral dome space through the tradition of Ukrainian shrines and the development of modern trends in temple building. Tradition is one of the most important components and means of creating Ukrainian church architecture. It is an expression of national features and characteristics, its identification. The most canonical type of Ukrainian churches is the cross-domes churches, which is associated with the adoption of Christianity. This tradition is closely connected with the liturgical process and is based on a combination of Eastern and Western building traditions. In figurative and compositional expression, the dome is dominant, and tectonic accent. The architecture of dome temples depends on the capabilities of structures and building materials, which are important factors in the formation process. The authors explore the traditional ways of erecting cross-dome temples on the territory of Ukraine, which are indicative and expressive features of Ukrainian temples. An important group of dome temples are buildings created in the modern period, when architects were looking for signs of Ukrainian national style. Particularly valuable is research related to the construction of neoukrainian traditional and neoteric temples designed by Ukrainian architects. Their planning and spatial decisions directly depend on new construction materials and design solutions. Some temples are described, which are an example of innovation, but at the same time are based on national traditions. Thus, the article examines the genesis of the creation and architecture of the Ukrainian cross-domed temples. Defined peculiarities of the search for national features and identification in the Ukrainian temple building in the interwar period was determined. Highlighted contribution of modern architects and designers to the process of revival of temple building in Ukraine.

Experimental study of signal behavior for wireless communication in construction

2017 ◽  
Vol 17 (4) ◽  
pp. 475-491 ◽  
Author(s):  
Zia Ud Din ◽  
Leonhard E. Bernold
Keyword(s):  
Building Materials ◽  
Construction Materials ◽  
Communication Technologies ◽  
Signal Propagation ◽  
Local Area ◽  
Content Type ◽  
New Construction ◽  
Building Components ◽  
Electromagnetic Signals ◽  
Set Up

Purpose The purpose of this study is to understand the effects of building components of a growing concrete structure and different building materials such as glass and steel on Wi-Fi signals propagation in a construction site. Wireless local area networks are considered effective tools to link the islands-of-communication in construction. Still, designing a Wi-Fi network that can grow with a new construction requires that one understands the performance of propagation of electromagnetic signals transmitted at 2.4 GHz. Design/methodology/approach This paper reviews the theoretical behavior of electromagnetic signals when signal attenuation is caused by various construction materials changing their strengths, directions and possibly leading to total absorption. The authors used a typical building layout to conduct experimental work to measure the effect of common building features and communication technologies on signal strengths. Findings The measured data not only confirmed the theory-based predictions but also demonstrated the complexity of predicting signal propagation when obstructions inhibit the line-of-sight “travel” of electromagnetic signals. Originality/value Different to other papers, the experiments were conducted outside a concrete building mimicking the situation where the transmitter is set up at the site office.

Green gold of Africa – Can growing native bamboo in Ethiopia become a commercially viable business?

2014 ◽  
Vol 90 (05) ◽  
pp. 628-635 ◽  
Author(s):  
Felix Böck
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Wood Products ◽  
Raw Material ◽  
Sustainable Construction ◽  
Sustainable Business ◽  
Subtropical Zone ◽  
New Construction ◽  
Increasing Demand

With concerns about climate change and the search for sustainable construction materials, significant attention is now being paid to Africa's natural resources. Ethiopia, known as Africa's political capital, has a rapidly expanding economy with increasing demand for new construction materials. Through public private partnerships projects the country is developing a sustainable business model to promote bamboo as a raw material. The subtropical zone of Ethiopia is home to approximately 65% of Africa's bamboo resources, an area of over 1 million hectares. Bamboo is potentially an ideal source of local, sustainable purpose-engineered building materials for growing cities not only in Ethiopia but across Africa. Production of conventional construction materials such as steel and concrete is expensive, highly energy intensive and unsustainable, requiring large quantities of water and is strongly dependent on imported raw materials. Bamboo is a renewable building material widely cultivated in Ethiopia but not yet utilized in modern construction. Structural Bamboo Products (SBP), similar to engineered wood products, have excellent potential to partially replace the use of more energy-intensive materials. Projects such as African Bamboo are taking steps in managing, cultivating and using Ethiopian bamboo species to help mitigate rapid deforestation in East Africa by creating alternative “wood” sources and sustainable business opportunities.

scholarly journals Department of building materials and products: history and modernity

New Collegium ◽  
2020 ◽  
Vol 4 (102) ◽  
pp. 23-29
Author(s):  
E. Dedeneva ◽  
V. Bondar ◽  
I. Kazimagomedov ◽  
Т. Kostyuk
Keyword(s):  
Building Materials ◽  
Materials Science ◽  
Construction Materials ◽  
Teaching Staff ◽  
Practical Training ◽  
Highly Qualified ◽  
Educational Support ◽  
Wide Range ◽  
National University ◽  
Institute Of Technology

The Department of Building Materials and Products of the Kharkiv National University of Construction and Architecture in 2020 celebrates its ninetieth anniversary. She counts her age since 1930, when the Kharkov Civil Engineering Institute was founded, separated from the construction faculty of the Kharkov Institute of Technology. Construction materials science, as the main general educational and fundamental discipline for future specialists of all construction specialties and architects, absorbs various sciences, disciplines and contacts a wide range of materials, products, technologies. The highly qualified team of the teaching staff and educational support personnel of the Department of Building Materials and Products has been providing high-quality training for the construction industry for 90 years. The staff of the department, relying on their educational, pedagogical and scientific experience, adjust and create new work programs, taking as a basis the primary fundamental knowledge and requirements for the modernization of vocational education in Ukraine. Today the department has the opportunity to carry out experiments to assess the quality of common building materials. Thanks to the constant contacts of the department with industrial and trade organizations, the collection of samples and brochures of new domestic and foreign finishing materials (ceramics, polymer products, dry building mixtures, etc.) has been almost completely updated and is constantly updated during practical training. The friendly and creative team of the department is optimistic about the 90th anniversary of the department and KNUSA.

Research of Properties of Modern Construction Materials Based on Industrial Waste, Waste Wood and Metallurgical Industries

2019 ◽  
Vol 802 ◽  
pp. 113-124
Author(s):  
Ruslan Aharonovich Abramov ◽  
Maksim Sergeevich Sokolov ◽  
Svetlana Vyacheslavovna Derevianko
Keyword(s):  
Industrial Waste ◽  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Raw Material ◽  
Total Output ◽  
Material Consumption ◽  
Waste Wood ◽  
New Construction ◽  
Materials Used

Material consumption of production of building materials is determined by the amount of raw materials used for their production, to the total output. One of the ways to reduce material consumption is the use of industrial waste as the main raw material for the production of new construction products. Most of the waste generated as a result of the activities of enterprises are man-made raw materials for the production of products such as brick, lime, cement, etc.Given that man-made raw materials are similar to the natural composition and physical properties and even has a number of advantages (heat treatment, increased dispersion, etc.), the manufacture of building materials from it is usually profitable and justified [4, 5].

scholarly journals Investigation of the effectiveness of new construction materials in road constructions

2019 ◽  
Vol 6 (2) ◽  
Author(s):  
Samofeev Nikita ◽  
Zemfira Gareeva ◽  
Radmir Musin ◽  
Elvira Khasanova ◽  
Rinat Shaikhmetov ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Building Materials ◽  
Polypropylene Fiber ◽  
Construction Materials ◽  
Road Construction ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Fibrous Concrete ◽  
New Construction ◽  
The Cost

Modern road constructions go through a whole range of different loads of static and dynamic nature; therefore, higher-quality materials and solutions are required for the roads of the corresponding class, ensuring their compliance with various climatic, geological and economic factors. Currently used road constructions have different basement, they can be of natural or artificial type. Designing a foundation on a concrete base is considered as the most enduring, however, there are a number of aspects that significantly affect their durability. Improving their reliability and quality is an important promising direction in the study of the use of new building materials. The article shows the possibility of improving the quality of the foundations of road structures through the use of poly-reinforced fiber-reinforced concrete. Compared with metal fiber, polypropylene fiber gives the desired effect of reducing the weight of the structure and the cost. There is a significant increase in the waterproof performance of fiber-reinforced concrete, which is especially important for drainage sections of road construction foundations. The authors determined that a significant improvement in the performance of fibrous concrete is achieved, when the polydisperse reinforcement of the concrete matrix use polypropylene (0.3 %) and steel (1.7 %) fiber. In this case, the first option has an impact on crack resistance, and the use of steel – on strength. Thus, with this ratio of reinforcement with various fibers, a synergistic effect of improving the static and dynamic indicators of fibrous concrete is achieved. According to authors, bench studies of reinforcement of fiber-reinforced concrete structures for the foundations of roads show their high economic efficiency and reduce the cost of 1 m3 of the finished structure to 16 %.

scholarly journals An insight into the quality of internal built environment in Vladivostok. Part 2: Studying the sanitary and microbiological condition of indoor air

2020 ◽  
pp. 48-60
Author(s):  
Vladimir A. Drozd ◽  
Anna L. Ponomareva ◽  
Valery V. Chernyshev ◽  
Kirill S. Golokhvast
Keyword(s):  
Building Materials ◽  
Residential Buildings ◽  
Analytical Data ◽  
Field Research ◽  
Scientific Work ◽  
Environmental Indicators ◽  
Number Of Microorganisms ◽  
The Impact ◽  
The City

Introduction. This work is devoted to study the microbiological composition of the air 110 dwellings in the city of Vladivostok and the assessment of the impact of various factors on the microbiological condition of premises. The study is aimed at obtaining information about the real sanitary and hygienic conditions of the exploited residential area and identifying patterns of changes in environmental indicators from design decisions, building parameters and conditions of its operation. Research statistics are the result of field research with laboratory processing of the samples obtained. The relevance of scientific work also lies in the possibility of further factor analysis and verification of sanitary norms and rules with the practice of real design and operation of residential buildings. Materials and methods. Surveys were conducted on the basis of air sampling with subsequent assessment of the content of bacteria in the air of apartment buildings of different types, built at different times from different materials. Results. The section presents analytical data on the content of three main groups of bacteria in the air of residential premises located on the territory of Vladivostok. Based on the accumulated data, a comparative analysis was carried out to establish a correlation between the number of microorganisms in the air and the city area, the type of building material of the house, the density of apartment occupancy, and the presence of pets. Conclusions. Data on the influence of apartment occupancy density on the sanitary and microbiological situation were obtained. The assessment of the influence on the density of microbiological contamination of such factors as: the presence of pets, the type of building materials from which buildings are built, as well as the territorial location of the surveyed apartments.

scholarly journals Mortars with Recycled Aggregates from Building-Related Processes: A ‘Four-Step’ Methodological Proposal for a Review

2021 ◽  
Vol 13 (5) ◽  
pp. 2756
Author(s):  
Federica Vitale ◽  
Maurizio Nicolella
Keyword(s):  
Building Materials ◽  
Thermal Analyses ◽  
Construction Materials ◽  
Physical And Mechanical Properties ◽  
Research Trends ◽  
Mix Design ◽  
Recycled Aggregates ◽  
Design Parameters ◽  
Natural Aggregates ◽  
By Products

Because the production of aggregates for mortar and concrete is no longer sustainable, many attempts have been made to replace natural aggregates (NA) with recycled aggregates (RA) sourced from factories, recycling centers, and human activities such as construction and demolition works (C&D). This article reviews papers concerning mortars with fine RA from C&D debris, and from the by-products of the manufacturing and recycling processes of building materials. A four-step methodology based on searching, screening, clustering, and summarizing was proposed. The clustering variables were the type of aggregate, mix design parameters, tested properties, patents, and availability on the market. The number and the type of the clustering variables of each paper were analysed and compared. The results showed that the mortars were mainly characterized through their physical and mechanical properties, whereas few durability and thermal analyses were carried out. Moreover, few fine RA were sourced from the production waste of construction materials. Finally, there were no patents or products available on the market. The outcomes presented in this paper underlined the research trends that are useful to improve the knowledge on the suitability of fine RA from building-related processes in mortars.

What does the concept of affordances afford?

2021 ◽  
pp. 105971232098268
Author(s):  
Rob Withagen ◽  
Alan Costall
Keyword(s):  
Lived Experience ◽  
Theoretical Basis ◽  
Scientific Work ◽  
Ecological Approach ◽  
Design Practices ◽  
The Many ◽  
Architecture And Design ◽  
Functional Concept

Gibson once suggested that his ecological approach could provide architecture and design with a new theoretical basis. Erik Rietveld takes up this suggestion—the concept of affordances figures prominently not only in his philosophical and scientific work but also in the design practices he is engaged in. However, as Gibson introduced affordances as a functional concept, it seems ill-suited to capture the many dimensions of our lived experience of the (manufactured) environment. Can the concept of affordances also take on the expressive and aesthetic qualities of artifacts and buildings?

scholarly journals Application of Plastic Wastes in Construction Materials: A Review Using the Concept of Life-Cycle Assessment in the Context of Recent Research for Future Perspectives

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3549
Author(s):  
Tulane Rodrigues da Silva ◽  
Afonso Rangel Garcez de Azevedo ◽  
Daiane Cecchin ◽  
Markssuel Teixeira Marvila ◽  
Mugahed Amran ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Solid Waste ◽  
Building Materials ◽  
Construction Materials ◽  
Plastic Waste ◽  
Plastic Wastes ◽  
Solid Waste Generation ◽  
Alternative Processes

The urbanization process contributes to the growth of solid waste generation and causes an increase in environmental impacts and failures in the management of solid waste. The number of dumps is a concern due to the limited implementation and safe disposal of this waste. The interest in sustainable techniques has been growing in relation to waste management, which is largely absorbed by the civil construction sector. This work aimed to review plastic waste, especially polyethylene terephthalate (PET), that can be incorporated with construction materials, such as concrete, mortars, asphalt mixtures, and paving. The use of life-cycle assessment (LCA) is related, as a tool that allows the sustainability of products and processes to be enhanced in the long term. After analyzing the recent literature, it was identified that studies related to plastic wastes in construction materials concentrate sustainability around the alternative destination of waste. Since the plastic waste from different production chains are obtained, it was possible to affirm the need for a broader assessment, such as the LCA, providing greater quantification of data making the alternative processes and products more sustainable. The study contributes to enhance sustainability in alternative building materials through LCA.

scholarly journals Fire Resistance Behaviour of Geopolymer Concrete:An Overview

Buildings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 82
Author(s):  
Salmabanu Luhar ◽  
Demetris Nicolaides ◽  
Ismail Luhar
Keyword(s):  
Compressive Strength ◽  
Thermal Resistance ◽  
Building Materials ◽  
Elevated Temperatures ◽  
Construction Materials ◽  
Flexural Behavior ◽  
Thermal Shrinkage ◽  
Physico Chemical ◽  
The Impact ◽  
Loss Of Strength

Even though, an innovative inorganic family of geopolymer concretes are eye-catching potential building materials, it is quite essential to comprehend the fire and thermal resistance of these structural materials at a very high temperature and also when experiencing fire with a view to make certain not only the safety and security of lives and properties but also to establish them as more sustainable edifice materials for future. The experimental and field observations of degree of cracking, spalling and loss of strength within the geopolymer concretes subsequent to exposure at elevated temperature and incidences of occurrences of disastrous fires extend an indication of their resistance against such severely catastrophic conditions. The impact of heat and fire on mechanical attributes viz., mechanical-compressive strength, flexural behavior, elastic modulus; durability—thermal shrinkage; chemical stability; the impact of thermal creep on compressive strength; and microstructure properties—XRD, FTIR, NMR, SEM as well as physico-chemical modifications of geopolymer composites subsequent to their exposures at elevated temperatures is reviewed in depth. The present scientific state-of-the-art review manuscript aimed to assess the fire and thermal resistance of geopolymer concrete along with its thermo-chemistry at a towering temperature in order to introduce this novel, most modern, user and eco-benign construction materials as potentially promising, sustainable, durable, thermal and fire-resistant building materials promoting their optimal and apposite applications for construction and infrastructure industries.

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