Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
The use of asbestos as a construction material in public buildings: a case study
Download
index.pdf
Date
2020
Author
Dündar-Mustafa, Deniz
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
368
views
133
downloads
Cite This
Since the beginning of the 20th century, asbestos minerals due to its physical and chemical properties were used in many industrial areas, especially construction. Despite its common preference in industry, carcinogenic effects of asbestos on health were identified. Therefore, use of asbestos minerals was forbidden worldwide. Nevertheless, at present, the negative health effects become a significant issue because of urban transformation projects, even in Turkey. The main objective of this study is to assess construction materials within the scope of asbestos usage in the public buildings. The research methodology followed in this study has two main stages as field and laboratory work. In the first stage, 10 public buildings built between 1960 and 1980, were selected at 5 different locations in Ankara. A total of 150 samples which include wall, floor coverings and insulation materials, were taken from these buildings. The second stage of the research was conducted at the laboratory to examine the samples mineralogically and petrographically. The samples firstly were grouped based on the density of fibrous content under stereo microscope. Following this step, asbestos content and type were examined by polarized light microscope. Research findings revealed that asbestos is present in 47% of 150 samples. Moreover, asbestos minerals were used not only in insulation materials, but also in wall and floor materials. The obtained results indicate the existence of all six asbestos types including the most risky ones as amosite and crocidolite for human health. The main novelty of this thesis study is that it clarifies the use of asbestos as construction materials to be more than it is estimated. This research, moreover, expand asbestos awareness, and make generalization for the asbestos risk assessment use before demolition and maintenance-repair processes in Turkey, in order to protect both employee and public health.
Subject Keywords
Building materials.
,
Asbestos Types
,
Construction Materials
,
Occupational Health and Safety
,
Public Buildings
,
Risk Assessment.
URI
http://etd.lib.metu.edu.tr/upload/12625340/index.pdf
https://hdl.handle.net/11511/45582
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Determination Of Asbestos Using As A Construction Material On Public Buildings Between 1960-1980 And Its Importance In Terms Of Medical Geology
Dündar Mustafa, Deniz; Toksoy Köksal, Fatma (2021-05-24)
Asbest minerallerinin 20. yüzyılın başından itibaren pek çok alanda özellikle de yapı malzemelerinde kullanıldığı bilinmektedir. Fiziksel ve kimyasal özelliklerinin uygunlukları sebebiyle izolasyon amacıyla yaygın olarak yapı malzemelerine katılarak kullanılan asbest türleri, 2003 yılında Dünya Sağlık Örgütü tarafından en önemli kanserojenlerden biri olarak tanımlanmıştır. Ülkemizde kademeli olarak kısıtlanan asbest üretimi ve kullanımı, 2010 yılından itibaren bütünüyle yasaklanmıştır. İnsan sağlığına olums...
Early-age activation of cement pastes and mortars containing ground perlite as a pozzolan
Erdoğan, Sinan Turhan (Elsevier BV, 2013-04-01)
Perlite is a natural pozzolan abundant in several countries which are major producers of cement. This makes perlite attractive for producing sustainable concretes. Strength development and heat evolution of perlite-containing mixtures, and the influence of chemical and thermal activation on their early and later age properties were investigated using five activator chemicals and four curing temperature-duration combinations. Chemical activation could increase the 1-day, or 3-day compressive strengths of 25%...
Properties of blended cements with thermally activated kaolin
Arikan, Metin; Sobolev, Konstantin; Ertuen, Tomris; Yeginobali, Asim; Turker, Pelin (Elsevier BV, 2009-01-01)
Kaolin, one of the materials of major importance for the ceramic and paper industry, is also used in the construction industry as a raw material for the production of white cement clinker and, in the form of metakaolin, as an artificial pozzolanic additive for concrete. Metakaolin is a vital component of high-performance and architectural concrete; however, its application in regular concrete is very limited due to relatively high production costs. This report evaluates the performance of a low-cost metakao...
Influence of the shape and roughness of inclusions on the rheological properties of a cementitious suspension
Erdoğan, Sinan Turhan; Ferraris, C. F.; Fowler, D. W. (Elsevier BV, 2008-05-01)
The influence of particle shape and surface roughness on the rheological properties of cementitious composites (cement paste plus coarse and fine particles) was investigated for mixtures of mortars and laboratory-made aggregates. The coarse particles were monosized spheres and cubes made from mortar, and monosized glass spheres, uncoated or roughened. The fine particles were uncoated or roughened monosized glass mini-spheres. The coarse particle mixtures were tested with a concrete rheometer to investigate ...
Comprehensive Evaluation of AIMS Texture, Angularity, and Dimension Measurements
Mahmoud, Enad; Gates, Leslie; Masad, Eyad; Erdoğan, Sinan Turhan; Garboczi, Edward (American Society of Civil Engineers (ASCE), 2010-04-01)
Aggregates are the most widely used construction materials in the world in structures built from both asphaltic and portland cement concrete composites. The performance of these composites is affected by aggregate shape characteristics (e.g., angularity, texture, and dimensions). The aggregate imaging system (AIMS) is a computer automated system that was developed to measure aggregate shape characteristics using digital camera images of aggregates. This paper addresses four issues concerning AIMS measuremen...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
D. Dündar-Mustafa, “The use of asbestos as a construction material in public buildings: a case study,” Thesis (M.S.) -- Graduate School of Natural and Applied Sciences. Occupational Health and Safety., Middle East Technical University, 2020.