scholarly journals Building materials and technologies of modern housing: architectural and environmental aspects

Author(s):  
O S Subbotin
2020 ◽  
Vol 2 (4) ◽  
pp. 84-88 ◽  
Author(s):  
O. Subbotin

the questions of architectural and environmental solutions in the field of design and construction of low-rise residential buildings, including the distinctive properties of building materials due to the conditions of modern material culture, aesthetic features of the external and internal appearance of these buildings are considered. It is noted that the conceptual approach to the choice of technologies in the construction of these objects helps to determine the necessary organization and structure of work, as well as additional artistic methods of architectural expression. It is also indicated that along with the architectural expressiveness one of the main requirements for the comfort of living in a residential building becomes environmental safety. Considerable attention is paid to modern building materials and innovative technologies that form new creative challenges facing architects.


2012 ◽  
Vol 18 (2) ◽  
pp. 147-154 ◽  
Author(s):  
Snezana Pasalic ◽  
Snezana Vucetic ◽  
Dmitar Zoric ◽  
Vilma Ducman ◽  
Jonjaua Ranogajec

The environmental aspects of waste building materials have been of great interest in recent years. For the sector of building materials this means increased recycling, reduction of energy consumption and natural resources preservation. This also presents an important contribution in the field of environmental protection. The work deals with the development of pozzolanic mortars made of waste building materials, ground red structure bricks and raw clay materials of inadequate characteristics for the production of ceramic materials. Based on the results of historical mortar characterizations, a group of mortars with specific characteristics (satisfied durability, good compatibility with a historical mortar) was prepared. The potential of the waste materials and domestic clay materials application in the production of pozzolanic mortars was confirmed. In addition to the waste management, pozzolanic mortars were designed taking into account the existing conventions in the area of culture heritage.


Molecules ◽  
2020 ◽  
Vol 25 (8) ◽  
pp. 1873
Author(s):  
Maria Paola Bracciale ◽  
Svetlana Sammut ◽  
JoAnn Cassar ◽  
Maria Laura Santarelli ◽  
Assunta Marrocchi

The use of inhibition chemicals holds the prospect of an efficient strategy to control crystallization in porous materials, thereby potentially contributing to the prevention or mitigation of the salt decay phenomenon in modern as well as historical building materials in a more sustainable manner. In this review, we first provide an essential background on the mechanism of salt crystallization and on the factors influencing this phenomenon; next, we illustrate the mechanism at the basis of the action of crystal growth inhibitors, and critically discuss the major advances in the development of different families of inhibitors, particularly focusing on their influence on salt transport and crystallization within the structure of porous media. Specifically, correlations between the crystallization inhibition processes in porous materials and variables, such as porous substrate composition and properties, contaminant salt type and concentrations, microclimatic conditions, inhibiting solution concentration and properties, and application methods, will be highlighted. Environmental aspects, limitations, and problems associated with some inhibition chemicals are also taken into account. Finally, a survey and a discussion on the most representative experimental techniques and instrumentation available to assess qualitatively and quantitatively the inhibitor effectiveness, as well as recently developed modelling tools are given out.


2021 ◽  
Author(s):  
Ranjana Yadav ◽  
Jitendra Kumar

Engineered wood products are considered as best building materials due to environmentally friendly. Huge change to the way in which wood has been utilized in primary application of construction in the course of the most recent 25 years are in light of decreased admittance to high strength timber from growth forests, and the turn of events and creation of various new design of manufactured wood products. Engineered wood products are available in different variety of sizes and measurements like laminated veneer lumber, glued laminated timber, finger jointed lumber, oriental strand board etc. It is utilized for rooftop and floor sheathing, solid structure, beams and the hull of boats. This review objectively explores not only the environmental aspects of the use of different engineered wood composites as a building material, but also their economic aspects, to understand their effect on sustainability.


2019 ◽  
Vol 136 ◽  
pp. 05008
Author(s):  
Bondar Krystsina ◽  
Yalavaya Natallia

The state-of-the-art of the problem of the migration of ammonia from building materials into the air of residential premises is discussed in the article. The international nature of the problem of ammonia pollution of indoor air in residential and office buildings was shown in the literature review. A method for the photometric determination of the content of nitrogen-containing compounds in the form of ammonium nitrogen with Nessler's reagent in concrete was propesd by the authors. This technique allows to control the ammonia content at a safe level. Also the method of potentiometric determination of the content of nitrogen-containing compounds for the analysis of additives for concrete was implemented by the authors. This analysis method allows prevent the use of additives that can potentially serve as a source of ammonia emissions during the exploitation of building materials.


2013 ◽  
Vol 561 ◽  
pp. 255-259 ◽  
Author(s):  
Wei Feng Zhang ◽  
Chuan Sheng Wang ◽  
Fu Xia Zhang

Abstract. The tubular belt conveyor system is one of the most widely-used deferent manners in bulk material. It is a relatively important continuous deferent manners in modern intensive production, widely applied in metallurgy, coal, building materials and other different industries. The belt conveyor has advantages in long distance convey, large conveying volume, high efficiency, with simple structure. Now with the development of the machinery manufacturing technology, rubber industry and the requirements of the environmental aspects, the new type tubular belt type conveyor has obtained unanimous approval, and possessed vast vista in application and use value


2015 ◽  
Vol 13 (1) ◽  
pp. 99
Author(s):  
Yunan Rusdianto ◽  
Misbahul Munir

Penggunaan Limbah Marmer Sebagai Filler Terhadap Absorbsi, Kuat Tekan dan Modulus Elastisitaas pada BetonUse of Waste As Filler On Marble Absorption, Compressive Strength and Modulus on Concrete ElastisitaasYunan Rusdianto1 & Misbahul Munir21,2Jurusan Teknik Sipil-Fakultas Teknik UNiversitas Muhammadiyah MalangKampus III, Jl. Raya Tlogomas No. 246 Telp. (0341) 464318-19 Malng 65144Email : [email protected] needs to continue to rise buildings make use of building materials also increased. In an effort to meet the needs of the building materials sometimes lead to waste. The resulting waste if not managed will certainly be a problem related to environmental aspects. One of them is the marble waste generated in the production of marble processing. In this paper, marble waste will be used as a filler material (filler) in concrete with concrete efforts to create a more solid. Marble waste that will be used is in the form of powder waste from areas Besole Besuki Tulungagung subdistrict. The amount of addition of marble waste in a row as follows: 0%, 5%, 10%, 15%, 20%, 25% and 30% of the weight of fine aggregate. with a compressive strength of 27 MPa plan. The test results show that the compressive strength of concrete experiments showed the addition of 5% to give effect to an increase in the compressive strength of concrete at 28.283 MPa, thus marble waste has a good effect as a filler (filler).Keywords: Concrete, marble waste, fillerAbstrakPermintaan kebutuhan terhadap bangunan yang terus meningkat membuat penggunaan bahan bangunan ikut meningkat. Dalam upaya pemenuhan kebutuhan bahan bangunan tersebut terkadang menimbulkan limbah. Limbah yang dihasilkan tersebut apabila tidak dikelola tentunya akan menjadi masalah yang berkaitan dengan aspek lingkungan. Salah satunya adalah limbah marmer yang dihasilkan pada produksi pengolahan marmer. Pada paper ini, limbah marmer akan digunakan sebagai bahan pengisi (filler) pada beton dengan upaya menciptakan beton yang lebih padat. Limbah marmer yang akan digunakan adalah limbah yang berupa serbuk yang berasal dari daerah besole kecamatan besuki Kabupaten Tulungagung. Besarnya penambahan limbah marmer berturut turut sebagai berikut: 0%,5%,10%,15%,20%,25% dan 30% dari berat agregat halus. dengan kuat tekan rencana sebesar 27 Mpa. Hasil pengujian kuat tekan menunjukkan bahwa beton eksperimen menunjukan penambahan 5% memberikan pengaruh terhadap peningkatan kuat tekan pada beton sebesar 28,283 Mpa, Dengan demikian limbah marmer memiliki pengaruh yang baik sebagai bahan pengisi (filler).Kata kunci: Beton, limbah marmer, filler


Author(s):  
Gordana Topličić-Ćurčić ◽  
Vojislav Mitic ◽  
Dušan Grdić ◽  
Nenad Ristić ◽  
Zoran Grdić

Author(s):  
J. R. Millette ◽  
R. S. Brown

The United States Environmental Protection Agency (EPA) has labeled as “friable” those building materials that are likely to readily release fibers. Friable materials when dry, can easily be crumbled, pulverized, or reduced to powder using hand pressure. Other asbestos containing building materials (ACBM) where the asbestos fibers are in a matrix of cement or bituminous or resinous binders are considered non-friable. However, when subjected to sanding, grinding, cutting or other forms of abrasion, these non-friable materials are to be treated as friable asbestos material. There has been a hypothesis that all raw asbestos fibers are encapsulated in solvents and binders and are not released as individual fibers if the material is cut or abraded. Examination of a number of different types of non-friable materials under the SEM show that after cutting or abrasion, tuffs or bundles of fibers are evident on the surfaces of the materials. When these tuffs or bundles are examined, they are shown to contain asbestos fibers which are free from binder material. These free fibers may be released into the air upon further cutting or abrasion.


Crisis ◽  
2014 ◽  
Vol 35 (5) ◽  
pp. 292-300 ◽  
Author(s):  
Rebecca Soole ◽  
Kairi Kõlves ◽  
Diego De Leo

Background: Suicide among children under the age of 15 years is a leading cause of death. Aims: The aim of the current study is to identify demographic, psychosocial, and psychiatric factors associated with child suicides. Method: Using external causes of deaths recorded in the Queensland Child Death Register, a case-control study design was applied. Cases were suicides of children (10–14 years) and adolescents (15–17 years); controls were other external causes of death in the same age band. Results: Between 2004 and 2012, 149 suicides were recorded: 34 of children aged 10–14 years and 115 of adolescents aged 15–17 years. The gender asymmetry was less evident in child suicides and suicides were significantly more prevalent in indigenous children. Children residing in remote areas were significantly more likely to die by suicide than other external causes compared with children in metropolitan areas. Types of precipitating events differed between children and adolescents, with children more likely to experience family problems. Disorders usually diagnosed during infancy, childhood, and adolescence (e.g., ADHD) were significantly more common among children compared with adolescents who died by suicide. Conclusion: Psychosocial and environmental aspects of children, in addition to mental health and behavioral difficulties, are important in the understanding of suicide in this age group and in the development of targeted suicide prevention.


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