MONITORING OF RADIATION AND ENVIRONMENTAL CHARACTERISTICS OF BUILDINGS

2019 ◽  
pp. 15-23
Author(s):  
Sidelnikova
Keyword(s):  
Construction Industry ◽  
Large Scale ◽  
Building Materials ◽  
Radiation Safety ◽  
Specific Activity ◽  
Residential Buildings ◽  
Natural Radionuclides ◽  
Environmental Safety ◽  
Radiation Background ◽  
Volgograd Region

Human economic activity leads to a significant redistribution of natural radionuclides in the environ-ment. Radiation background in buildings is considered as one of the main types of radiation exposure on the population, since a person spends most of his time indoors. Currently, with the adoption of federal laws: “On the radiation safety of the population” No. 3-FZ 09.01.1996, “On the Sanitary and Epidemiological Welfare of the Population” No. 52-FZ 30.03.1999, and also on the “Radiation Safety Standards "(NRB-99/2009)," Basic Sanitary Rules for Ensuring Radiation Safety "(OSPORB-99/2009), approaches to the organization of radiation control in the construction industry and, consequently, to the organization of radiation safety con-trol of the population, have changed in many ways. The article deals with the problems of ensuring radiation and environmental safety in the construction of buildings.The need for research on the radiation-ecological characteristics of buildings is shown. An important problem for the construction industry is the radiation and hygienic support of technological processes and construction. In many ways, the solution of the problems related to improving of the radiation safety of building complexes depends on the implementation of legisla-tion connected with population restrictions from exposure of natural radionuclides. The results of large-scale studies of the effective specific activity of natural radionuclides in building materials and industrial waste produced and used in the Volgograd region are presented in this article. It has been established that con-struction materials produced in the Volgograd region, in accordance with national legislative and regulatory requirements, belong to class 1 and can be used for the construction of residential and public buildings. There have been presented the results of the survey on the radon content in the air of residential buildings from various building materials, as well as the density of radon fluxes from the soil. Radiation monitoring of construction sites is necessa ensure the radiation safety of the population.

scholarly journals ANALYSIS OF WAYS TO INCREASE RADIATION PROTECTION OF BUILDING MATERIALS

2021 ◽  
Vol 30 (1) ◽  
pp. 34-41
Author(s):  
V. Kovalskiy ◽  
◽  
M. Drukovanyy ◽  
Y. Oliinyk ◽  
◽  
...  
Keyword(s):  
Construction Industry ◽  
Radiation Protection ◽  
Building Materials ◽  
Natural Radionuclides ◽  
Environmental Safety ◽  
Scientific Development ◽  
Building Structures ◽  
Radiation Background ◽  
Protective Properties ◽  
Resource Characteristics

The paper considers the problems of environmental pollution by radiation-hazardous and environmentally harmful elements. Radiation-hazardous pollution occurs in several directions, namely under the influence of constant natural radiation background, due to Chernobyl emissions, nuclear energy production, pollution of rivers and lakes, the use of building materials with high content of natural radionuclides. At present, Ukraine has suspended comprehensive measures to reduce radiation pollution in the construction industry due to the lack of effective methods to combat environmental safety and improve the demographic situation in the country. As ways to increase the radiation-protective properties of building materials, variants of structural models, construction technologies are considered, the introduction and improvement of which is a prospect of scientific development of the construction industry. For environmentally safe, economically feasible, systematically operated operation of building structures and construction sites in general, it is essential to adhere to the principles of radiation protection by optimizing the resource characteristics of the respective facilities. Therefore, the analysis of the relevance of the above methods of creating high-quality building materials, taking into account the indicators of increasing the radiation-protective properties of building materials.

The Raw Building Materials’ Research Quantitative Characteristics Radioactivity in Volgograd Region

2019 ◽  
Vol 974 ◽  
pp. 342-349
Author(s):  
Ilya P. Mikhnev ◽  
Svetlana V. Mikhneva ◽  
Natalia A. Salnikova ◽  
Lev B. Lempert
Keyword(s):  
Building Materials ◽  
Specific Activity ◽  
Raw Materials ◽  
Natural Radionuclides ◽  
Self Organizing Maps ◽  
Network Training ◽  
Volgograd Region ◽  
Quantitative Characteristics ◽  
Materials Research ◽  
Specific Activities

The paper attempts to structure the raw materials for radioactivity using Kohonen self-organizing maps. The analysis was carried out on the data on the specific activities of natural radionuclides in the construction raw materials in the Volgograd region, as well as on the natural radionuclides specific effective activities calculated values. Unlike the traditional methods of analysis, the used methodology for assessing radioactivity is based on quantitative characteristics. As a result of the network training on data on the raw materials specific activities, a cluster map with segmentation by the natural radionuclides effective specific activity has been obtained. Based on the results obtained, the conclusions about the possibility and feasibility of using the algorithm used for the classification and analysis of data on the building materials radioactivity have been made.

scholarly journals Studies of radon activity in civil engineering and environmental objects

2018 ◽  
Vol 7 (2.23) ◽  
pp. 162 ◽  
Author(s):  
Ilya P. Mikhnev ◽  
Svetlana V. Mikhneva ◽  
Natalia A. Salnikova
Keyword(s):  
Radiation Exposure ◽  
Construction Industry ◽  
Building Materials ◽  
Civil Engineering ◽  
Radiation Background ◽  
Radon Activity ◽  
Environmental Objects ◽  
Volgograd Region ◽  
Radiation Research ◽  
Training Specialists

In this article, studies of the radiation (radon) characteristics of the soil, soil-forming rocks and civil engineering buildings of the Volgograd Region are presented. The purpose of the study was to identify factors of the radiation background caused by radon in civil engineering objects. The regularities of radon distribution at the objects of the construction complex and the environment are determined depending on the influence of various factors. The studies made it possible to calculate the averaged annual effective equivalent doses to the population of the Volgograd Region caused by radon and the daughter products of the decay of radon. As a result, the patterns of changes in radon activity in the air of the premises have been established, depending on the time of the year, building materials and the purpose of the room. The result of the work performed is the normative material for use in the construction industry in order to limit the radiation exposure of the population in the region. Also, methodological material for training specialists in the field of radiation research in the building complex.  

scholarly journals Testing a Gypsum Composite Based on Raw Gypsum with a Direct Admixture of Paraffin and Polymer to Improve Thermal Properties

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3241
Author(s):  
Krzysztof Powała ◽  
Andrzej Obraniak ◽  
Dariusz Heim
Keyword(s):  
Thermal Conductivity ◽  
Heat Capacity ◽  
Thermal Properties ◽  
Phase Change ◽  
Large Scale ◽  
Building Materials ◽  
Residential Buildings ◽  
Energy Performance ◽  
Polymer Content ◽  
Volumetric Heat Capacity

The implemented new legal regulations regarding thermal comfort, the energy performance of residential buildings, and proecological requirements require the design of new building materials, the use of which will improve the thermal efficiency of newly built and renovated buildings. Therefore, many companies producing building materials strive to improve the properties of their products by reducing the weight of the materials, increasing their mechanical properties, and improving their insulating properties. Currently, there are solutions in phase-change materials (PCM) production technology, such as microencapsulation, but its application on a large scale is extremely costly. This paper presents a solution to the abovementioned problem through the creation and testing of a composite, i.e., a new mixture of gypsum, paraffin, and polymer, which can be used in the production of plasterboard. The presented solution uses a material (PCM) which improves the thermal properties of the composite by taking advantage of the phase-change phenomenon. The study analyzes the influence of polymer content in the total mass of a composite in relation to its thermal conductivity, volumetric heat capacity, and diffusivity. Based on the results contained in this article, the best solution appears to be a mixture with 0.1% polymer content. It is definitely visible in the tests which use drying, hardening time, and paraffin absorption. It differs slightly from the best result in the thermal conductivity test, while it is comparable in terms of volumetric heat capacity and differs slightly from the best result in the thermal diffusivity test.

Method of Non-Destructive Measurement of Natural Radionuclides Concentration in Building Materials

ANRI ◽  
2021 ◽  
Vol 0 (1) ◽  
pp. 31-44
Author(s):  
Aleksey Vasil'ev ◽  
Aleksey Ekidin ◽  
Mariya Pyshkina ◽  
Georgiy Malinovskiy ◽  
Aleksandra Onischenko ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Flux Density ◽  
Building Materials ◽  
Specific Activity ◽  
Natural Radionuclides ◽  
Gamma Spectrometer ◽  
Average Activity ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Calculated Flux

A method for non-destructive monitoring of the content of natural radionuclides in building materials has been developed. Spectrum measurements of gamma radiation are carried out with a pre-calibrated field gamma spectrometer. The calculation of the average specific activity of natural radionuclides in building materials is carried out by comparing the calculated flux density of unscattered gamma quanta normalized to the specific activity, and the experimentally measured count rates in the photopeak. calculated for the geometry of the room under study and the location of the detector. Application of the developed method makes it possible to estimate the average activity of natural radionuclides in building materials without destruction.

THE SELECTION OF BUILDING MATERIALS TO IMPROVE THE COMFORT AND ECOLOGICAL SAFETY OF CITY HOUSING

2015 ◽  
Vol 5 (4) ◽  
pp. 94-99 ◽  
Author(s):  
Anna Yur'evna ZHIGULINA ◽  
Natalya Genrikhovna CHUMACHENKO
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Residential Buildings ◽  
Construction Materials ◽  
Environmental Safety ◽  
Toxic Substances ◽  
Chemical Additives ◽  
Chemical Safety ◽  
Sources Of Pollution ◽  
Selection Of

The article is devoted to problems of creation of comfortable microclimate. Identifi es sources of pollution, completed their evaluation. Special att ention is paid to the selection of environmentally friendly building materials. In the production of building materials where toxic components can be industrial waste, replacing natural raw materials and chemical additives regulating the properties. In the operation of many building materials, especially those based on polymers, it is necessary to control the release of toxic substances resulting from degradation. For the assessment of comfort and environmental safety of housing is offered to create «Passports of residential buildings», which should be provided with information about construction materials used to evaluate this parameter, environmental home safety, including chemical safety as its component.

scholarly journals Environmental and radiation assessment of construction materials in Tyumen

2021 ◽  
Vol 10 (2) ◽  
pp. 40-44
Author(s):  
Elena Viktorovna Zakharova ◽  
Elena Viktorovna Gaevaya ◽  
Leonid Nikolaevich Skipin ◽  
Svetlana Sergeevna Tarasova ◽  
Vasilyа Zinnurovna Burlaenko
Keyword(s):  
Building Materials ◽  
Specific Activity ◽  
Raw Materials ◽  
Natural Radionuclides ◽  
Construction Materials ◽  
Natural Radionuclide ◽  
Maximum Activity ◽  
Crushed Stone ◽  
Natural Activity ◽  
Effective Activity

The current pace of construction leads to the use of large volumes of construction raw materials, which must meet the regulatory indicators, including radiation. High levels of natural radionuclide activity, both in construction and finishing materials, affect changes in the gamma radiation indicators in the premises, which can negatively affect the health of people living in such facilities. Ecological and radiation assessment of building materials for the content of natural radionuclides showed an increased natural activity of potassium-40. The maximum activity values were observed in samples of bricks and expanded clay, where they were 799,0 and 622,0 Bq/kg, respectively. The lowest specific activity of natural potassium was observed in the crushed stone sample (21,3 Bq/kg). The specific activity of thorium-232 in building materials ranged from 2,1 to 53,3 Bq/kg. The activity of radium-226 in all the studied samples ranged from 4,4 Bq/kg (crushed stone) to 55,6 Bq/kg (cement). The specific effective activity of natural radionuclides in the studied building materials does not exceed the standard values (370 Bq/kg), therefore, they can be used in all types of construction and reconstruction.

scholarly journals BUILDING MATERIALS AND TECHNOLOGIES OF MODERN HOUSING: ARCHITECTURAL AND ENVIRONMENTAL ASPECTS

2020 ◽  
Vol 2 (4) ◽  
pp. 84-88 ◽  
Author(s):  
O. Subbotin
Keyword(s):  
Material Culture ◽  
Building Materials ◽  
Residential Buildings ◽  
Residential Building ◽  
Environmental Safety ◽  
Environmental Aspects ◽  
Conceptual Approach ◽  
Modern Material ◽  
Innovative Technologies ◽  
Modern Building

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.

scholarly journals Development and current state of the regulation of the natural exposure of the public of the Russian Federation (To commemorate the 90th birthday of Professor Krisiyk E.M.). Part 1

2021 ◽  
Vol 14 (1) ◽  
pp. 34-39
Author(s):  
V. V. Omelchuk
Keyword(s):  
Russian Federation ◽  
Building Materials ◽  
Radiation Safety ◽  
Natural Radionuclides ◽  
Federal State ◽  
Scientific School ◽  
The Public ◽  
Natural Exposure ◽  
The Russian Federation ◽  
Scientific Results

In April 2020 we commemorate the 90th birthday of the major scientist, doctor of technical sciences, Professor Eduard Mechislavovich Krisiyk. A new field of research on radiation-hygienic assessment of the natural sources of ionizing exposure and limitation of the public exposure has been developed under his scientific supervision and personal participation. For the first time in the international practice E.M. Krisiyk as the main author developed the requirements for the concentration of the natural radionuclides in the building materials; as the co-author – in phosphoric fertilizers, indicated the necessity of their radiation control. His scientific results were included into various Russian legislative and methodical documents: Federal state law “On the radiation safety of the public” in 1996, Norms of the radiation safety NRB-96 and NRB-99, Basic sanitary rules on the provision of the radiation safety OSPORB-99, Federal targeted program “Radon”, various guidelines. His scientific school, his flock and followers are successfully developing the scientific-methodical basics of the regulation of the natural exposure of the public of the Russian Federation at the current stage.

Modern Condition of Dose Loads from Construction Materials and Main Sources of Ionizing Impact on the Population of the Volgograd Region

2018 ◽  
Vol 931 ◽  
pp. 1007-1012 ◽  
Author(s):  
I.P. Mikhnev ◽  
N.A. Salnikova ◽  
M.B. Lempert
Keyword(s):  
Building Materials ◽  
Natural Radionuclides ◽  
Construction Materials ◽  
Gamma Background ◽  
Volgograd Region ◽  
Modern Condition

The article is devoted to the problems of the construction ecology. Studies of the gamma background are presented in residential, public and industrial premises constructed from various building materials. Methods are developed to protect population from the influence of natural radionuclides.

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