THE HYGIENIC ASSESSMENT OF THE WORKING ENVIRONMENT IN INDIVIDUAL OCCUPATIONS IN BUILDING ORGANIZATIONS

Introduction. The development of the construction industry is accompanied by the use of new technologies and building materials. Materials based on mineral wool (MW) became to be widely used. The article presents the results of the study of working environment factors and the determination of the safe for health work experience based on the health risk calculation for workers in contact with MW. Material and methods. To quantify the air pollution of the working area at the construction site, samples were taken using an aspirator and a dust meter. An absorption method using a spectrophotometer was used to determine the chemical composition of the dust. Statistical analysis and mathematical modeling were carried out using a standard software package Microsoft Excel, STADIA. Results. A table for the rapid health risk assessment of workers in contact with MW was developed. The risk of health loss is determined as “High” (R = 11.3). Discussion. Working conditions under the performance of heat-insulating works at facades cladding with the use of MW are classified as harmful (class 3.2) on the dust content in working zone air. In the course of the study, coarse dust and fine dust were found in the air. The data on the change of the dust concentration depending on air humidity, the concentration of dust particles of different dispersion at different distances from the place of work is presented. The chemical composition of dust is presented, the presence of heavy metals is established. Dependences for the determination of safe for health work experience under the influence of the various concentration of dust and the duration of contact are constructed. Сonclusions. On the basis of the research to improve the legal support in the field of occupational health and safety, a number of activities for workers engaged in work with the use of MW are proposed.

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Digital Romantics

Architects ◽

10.7591/cornell/9781501738494.003.0025 ◽

2019 ◽

pp. 119-124

Author(s):

Thomas Yarrow

Keyword(s):

Computer Aided Design ◽

Building Materials ◽

New Technologies ◽

Digital Technologies ◽

Working Environment ◽

Computer Aided ◽

Digital Humans ◽

Aided Design ◽

E Mail

In the office, computers are central to a range of tasks. The architects’ days are mostly spent at screens: checking and responding to e-mail, finding “precedent” images that provide the inspiration for design, researching building materials and new technologies, and most centrally of all using one of a range of computer-aided design packages. Watching them at work, I observe screens flicking perpetually between these programs and tasks. Observing their movements, I find it clear that these architects are thoroughly digital humans, their capacities of thought and action indissoluble from digital technologies that saturate this working environment....

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Application of headspace for research volatile organic compounds emitted from building materials

E3S Web of Conferences ◽

10.1051/e3sconf/20182801019 ◽

2018 ◽

Vol 28 ◽

pp. 01019

Author(s):

Beata Kultys ◽

Karolina Waląg

Keyword(s):

Volatile Organic Compounds ◽

Organic Compounds ◽

Building Materials ◽

Heating Temperature ◽

Mineral Wool ◽

Chromatography Method ◽

Temperature Range ◽

Volatile Organic ◽

Different Temperatures

Headspace technique and gas chromatography method with mas detector has been used for the determination of volatile organic compounds (VOC) emitted from various building and finishing materials, such as sealing foams, mounting strips, paints, varnishes, floor coverings. The tests were carried out for different temperatures (in the temperature range of 60 to 180 °C) and the time of heated vials with tested materials inside. These tests were conducted to verify the possibility of use this method of determination the VOC emission. Interpretation of chromatograms and mass spectra allowed to identify the type of compounds emitted from the tested materials and the optimum time and temperature for each type of material was determined. The increase in heating temperature of the samples resulted in increase the type and number of identified compounds: for four materials the increase was in the whole temperature range, for others it was from 90 °C. On the other hand, emission from mineral wool was low in whole temperature range. 30-minutes heating of the samples was sufficient to identify emitted compounds for most of tested materials. Applying a longer time, i.e. 24 hours, significantly increased the sensitivity of the method.

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Failure analysis of performance vehicle mechanical gear

MATEC Web of Conferences ◽

10.1051/matecconf/201818804019 ◽

2018 ◽

Vol 188 ◽

pp. 04019 ◽

Cited By ~ 1

Author(s):

Antonios D. Tsolakis ◽

Konstantinos I. Giannakopoulos ◽

Andreas S. Gkertsos

Keyword(s):

Chemical Composition ◽

Chemical Analysis ◽

Failure Analysis ◽

Dynamic Loading ◽

Power Transmission ◽

Working Environment ◽

Commercial Vehicles ◽

Machine Element ◽

Analysis Of Performance

Gears are the main machine element in vehicle power transmission trains. In commercial vehicles, power transmission trains design complexity consists of the determination of the loading parameters which depends upon the working environment of the performance vehicle. In the present work a gear failure under dynamic loading is investigated. The failed gear is part of a 2 speed gearbox of a Rotax DD2 2-stroke Open- Wheel performance vehicle (go-cart type). The gearbox was in racing conditions when failure occurred. The vehicle was speeding in 2nd Gear at wide open throttle when instantaneously the driver by fault downshifted to 1st gear. The result was for the first gears break a whole piece and eventually the system to go out of operation. Chemical composition of the examined metallic components was determined via EDAX chemical analysis.

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The Choice of Chemical Composition and Raw Materials for the Production of Basalt Wool with the Defined Characteristics

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.284.1018 ◽

2018 ◽

Vol 284 ◽

pp. 1018-1023

Author(s):

A.V. Khandoshka ◽

Svetlana G. Vlasova

Keyword(s):

Surface Tension ◽

Chemical Composition ◽

Chemical Analysis ◽

Thermal Insulation ◽

Raw Materials ◽

Mineral Wool ◽

Chemical Compositions ◽

Insulation Material ◽

X Ray

The composition of mineral wool was selected for the research, based on the chemical composition of the raw materials, the determination of the acidity module to obtain the thermal insulation material with the best characteristics and the lowest cost of the production of basalt mineral wool. The paper deals with compositions of raw materials and selection chemical compositions of charges for production of basalt mineral wool, and the experiments of welded samples were made and tested for viscosity, surface tension, chemical analysis and x-ray analysis.

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Health risk assessment for exposure to fine dust in production conditions

Russian Journal of Occupational Health and Industrial Ecology ◽

10.31089/1026-9428-2019-59-8-458-462 ◽

2019 ◽

pp. 458-462

Author(s):

O. I. Kopytenkova ◽

A. V. Levanchuk ◽

Z. Sh. Tursunov

Keyword(s):

Health Risk ◽

Construction Industry ◽

Thermal Insulation ◽

Working Environment ◽

Dust Particles ◽

Construction Site ◽

Fine Dust ◽

Production Environment ◽

Working Zone

Introduction.The results of the study of the working area air during thermal insulation works are presented.The aim of the studywas to assess the health risk of workers in the construction industry and exposed to fine dust.Materials and methods.The number of dust particles of different dispersion in the air of the working area in the implementation of thermal insulation works is determined.Results.It is established that the working conditions during the thermal insulation works in accordance with the current regulatory documentation are classified as harmful 3 class 2 degree. Harmful factor of the production environment is dust (including PM10and fine PM2,5) in air of working zone (3.2). The air quality of the working area indicates a long stay of fine dust in the air over the territory of the construction site. Dust of different dispersed composition was found in the air of the working area during thermal insulation works. Th e dust concentration is more than 10 μm was 8.2±1.3 mg/m3, PM10and 1.8±0.4 mg/m3, PM2,5–1,25±0,2 mg/m3.Conclusions.The results obtained in the experiment make it possible to determine the safe duration of the working experience underthe influence of a harmful factor of the working environment (in terms of the permissible health risk) with different duration ofcontact with it during the day.

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Utilization of Materials from the Production of Mineral Wool into Construction Materials

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1000.178 ◽

2014 ◽

Vol 1000 ◽

pp. 178-181

Author(s):

Pavel Leber ◽

René Čechmánek ◽

Petr Bibora ◽

Ivana Chromková ◽

Martin Vyvážil

Keyword(s):

Building Materials ◽

Construction Materials ◽

Mineral Wool ◽

Fibre Reinforced Concrete ◽

Concrete Blocks ◽

Negative Effect ◽

Glass Fibre Reinforced ◽

Thin Walled ◽

Material Utilization

This paper describes research on utilization of solid waste materials from mineral wool production. Aim of this research is verification of most suitable way of separated waste material utilization in building materials and determination of its maximal amount without negative effect on physical-mechanical and ecological characteristics of a final product. The research was focused on self-leveling mixtures, thin-walled glass fibre reinforced concrete products and vibropressed thin-walled shaped concrete blocks.

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Study Regarding the Micro Filler Effect of Sludge Resulting from Steel Pickling

Metals ◽

10.3390/met11020361 ◽

2021 ◽

Vol 11 (2) ◽

pp. 361

Author(s):

Claudiu Aciu ◽

Daniela Lucia Manea ◽

Dana-Adriana Iluţiu-Varvara

Keyword(s):

Chemical Composition ◽

Inductively Coupled Plasma ◽

Building Materials ◽

Optical Emission ◽

Xrd Analysis ◽

Mechanical Tests ◽

X Ray ◽

Steel Pipes ◽

General Chemical

The management of waste, resulting in high amounts from different production processes, often raises special problems. This is also the case for sludge, generated in increasing amounts from the chemical pickling of steel pipes. This article presents the results of laboratory experiments regarding the micro filler effect of sludge generated by chemical pickling of steel pipes and analyzes its capacity to be a pozzolanic material. The study involved the performance of mechanical tests (specific surface of the powder; compressive mechanical strengths) and chemical tests (determination of the general chemical composition of cement and sludge using the X-ray fluorescence (XRF) method; determination of oxides in the chemical composition of sludge by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES); X-ray diffraction (XRD) analysis of the sludge and cement used). This topic was addressed because recycling of sludge, by using it for the manufacture of new building materials, takes advantage of the waste resulting from the pickling of steel pipes that-until now-has generated large volumes without a specific use.

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THE INFLUENCE OF THE COMPOSITION OF MINERAL WATERS ON THE ORGANISM OF WORKERS INVOLVED IN INSTALLATION OF INSULATION

Municipal economy of cities ◽

10.33042/2522-1809-2021-1-161-320-327 ◽

2021 ◽

Vol 1 (161) ◽

pp. 320-327

Author(s):

O. Skrypnyk ◽

V. Abrakitov ◽

M. Ivashchenko

Keyword(s):

Chemical Composition ◽

Construction Industry ◽

Mineral Wool ◽

The Body ◽

Mineral Waters ◽

Dust Particles ◽

Insulation Material ◽

Production Environment ◽

Insulation Materials ◽

Production Factors

The use of modern thermal insulation materials in construction is one of the additional sources of harmful production factors and also lead to the formation of fine dust. To date, the risk of loss of health of workers in the construction industry in contact with mineral wool is little studied. To reduce the risk of health of workers in the construction industry, it is necessary to give a comprehensive assessment of harmful factors of the production environment when using mineral wool in the technological process and justify measures to improve working conditions. The paper provides information on a widely used in the construction industry insulation material - mineral wool. Its chemical composition is given. The main unfavorable factors of the working environment are revealed. In the construction industry, one of the most pronounced harmful production factors is the formation and release of dust, which is an aerosol of predominantly fibrogenic action. The development of the construction industry, the introduction of new insulation materials in the construction of industrial buildings, installations and structures, as well as residential and public buildings lead to new, insufficiently studied factors of the production environment that affect the health of workers and may increase the risk of health loss. To date, information on the effects of mineral wool on the body of workers and the toxicological characteristics of different types of mineral wool are fragmentary. The chemical composition of the dust determines the nature and severity of the adverse effects of dust. The dispersion composition of the dust determines the depth of penetration of particles into the respiratory organs of workers. The stability of dust particles in the air of the working area, their concentration, shape and duration of exposure determine the dust load and the risk to the health of workers. Dust particles can sorb on their surface other pollutants, which both in the complex and in isolation pollute the air of the working area and have an adverse effect on workers. An important criterion for the safety of mineral wool under inhalation is the dispersion of the dust formed. It is generally accepted that the most dangerous mineral wool dust with a dispersion of 3 microns or less.

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