Uğurlu Sağın, Elif
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Uğurlu, E
Sagin, Elif Ugurlu
Sağın, Elif Uğurlu
Ugurlu, E
Ugurlu, E.
Uğurlu, E.
Ugurlu, Elif
Uĝurlu Saĝin, Elif
Sagin, Elif Ugurlu
Sağın, Elif Uğurlu
Ugurlu, E
Ugurlu, E.
Uğurlu, E.
Ugurlu, Elif
Uĝurlu Saĝin, Elif
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Email Address
elifugurlu@iyte.edu.tr
Main Affiliation
02.01. Department of Conservation and Restoration of Cultural Heritage
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Current Staff
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Sustainable Development Goals
1NO POVERTY
0
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2ZERO HUNGER
0
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3GOOD HEALTH AND WELL-BEING
0
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4QUALITY EDUCATION
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5GENDER EQUALITY
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6CLEAN WATER AND SANITATION
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7AFFORDABLE AND CLEAN ENERGY
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8DECENT WORK AND ECONOMIC GROWTH
0
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
3
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10REDUCED INEQUALITIES
0
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11SUSTAINABLE CITIES AND COMMUNITIES
4
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
0
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13CLIMATE ACTION
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14LIFE BELOW WATER
0
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15LIFE ON LAND
1
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16PEACE, JUSTICE AND STRONG INSTITUTIONS
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17PARTNERSHIPS FOR THE GOALS
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Documents
12
Citations
392
h-index
7
Documents
13
Citations
365
Scholarly Output
20
Articles
13
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72880/6921
Supervised MSc Theses
6
Supervised PhD Theses
1
WoS Citation Count
365
Scopus Citation Count
210
Patents
0
Projects
2
WoS Citations per Publication
18.25
Scopus Citations per Publication
10.50
Open Access Source
11
Supervised Theses
7
| Journal | Count |
|---|---|
| Construction and Building Materials | 2 |
| Journal of Archaeological Science: Reports | 2 |
| Clays and Clay Minerals | 1 |
| Geoheritage | 1 |
| Gradevinar | 1 |
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20 results
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Now showing 1 - 10 of 20
Master Thesis Physical Transformation of Historic Built Environment: the Case of Kestelli Street(01. Izmir Institute of Technology, 2024) Uğurlu Sağın, Elif; Katmer, Gonca; Sağın, Elif UğurluKestelli Caddesi'nin de içinde bulunduğu İzmir Tarihi Kent Merkezi, Tarih boyunca çeşitli medeniyetlere ev sahipliği yapmış, birçok tarihi ve kültürel mirası içinde barındıran çok katmanlı bir alandır. Cumhuriyet'in ilanı ile birlikte tarihte meydana gelen gelişmelerle ortaya çıkan kırılma noktaları, ticari, sosyal ve demografik olmak üzere birçok faktörde değişimlere sebep olmuştur. Yaşanan dönüşümlerin paralelinde 20.yy'ın son çeyreğinden itibaren başlayan koruma ve planlama çalışmaları ile birlikte bölgenin muhafaza edilmesi için ilk adımlar atılmıştır. Çalışmanın amacı, Kestelli Caddesi'nde Türkiye Cumhuriyeti'nin kuruluşundan bu yana meydana gelen fiziksel dönüşümlerin çeşitli periyotlarda her yönüyle ele alınarak tespit edilmesidir. Çalışma kapsamında, eski haritalar, hava fotoğrafları ve eski belgeler incelenerek ve karşılaştırmalı yöntem ile Kestelli'nin son 100 yılda İzmir tarihi ve planlama çalışmaları çerçevesinde dönüşümü 4 periyot içerisinde incelenmiştir. Kestelli Caddesi, planlama ve tescil kararları, doluluk oranı, fonksiyon, parsel organizasyonları,kat yükseklikleri, inşaa teknikleri, korunmuşluk durumu ve mimari elemanlar çerçevesinde incelenmiş ve karşılaştırmalı yöntem kullanılarak alanın geçirdiği dönüşüm analiz edilmiştir. Böylece kentin geçmişten günümüze dönüşümünün aydınlatılması, değişen ekonomik ve sosyal unsurların ve yapılan planlama çalışmalarının kente etkisinin belirlenmesi hedeflenmiştir. Alanda yapılan analizler sonucunda özellikle bögenin değerlerine saygı duymayan ve zarar veren kontrolsüz uygulamaların son yıllarda artarak devam etttiği, böylece Kestelli Caddesi'nin, sahip olduğu tarihi, mimari ve sosyal değerlerini kaybetme tehtidi altına girdiği tespit edilmiştir. Kestelli Caddesi'nin sahip olduğu değer ile bir bütün olarak korunması, kentin kimliğinin ve kültürel mirasının geleceğe taşınması açısından büyük önem taşımaktadır. Bu çerçevede çalışma kapsamında ele edilen verilerin yapılacak planlama ve koruma çalışmaları için rehber olması hedeflenmiştir.Article Citation - WoS: 49Citation - Scopus: 57Characteristics of Lime Produced From Limestone Containing Diatoms(Elsevier Ltd., 2008) Böke, Hasan; Çizer, Özlem; İpekoğlu, Başak; Uğurlu Sağın, Elif; Şerifaki, Kerem; Toprak, GülcanIn this study lime binder used in stone and brick masonry mortars of some historic Ottoman baths was examined to understand whether the binders were hydraulic or not. For this purpose the mineralogical and elemental compositions and the microstructure of lime binder were determined by XRD, SEM-EDS and TGA analyses. The results indicate that the lime used in the brick dome mortars of Ottoman baths was hydraulic. Taking into account the kiln and fuel conditions of the 15th century, the possibility of obtaining hydraulic lime at relatively low temperature was examined. For this purpose limestone containing diatoms was heated at a relatively low temperature (850 °C), then slaked and carbonated. After heating and slaking, calcium silicate giving hydraulicity to the lime was indicated by XRD and SEM-EDS analyses. These results show that the production of hydraulic lime at a relatively low calcination temperature (850 °C) was possible with 15th century kilns.Article Citation - WoS: 28Citation - Scopus: 29Characteristics of Bricks Used in the Domes of Some Historic Bath Buildings(Elsevier Ltd., 2013) Uğurlu Sağın, Elif; Böke, HasanIn this study, characteristics of bricks used in the domes of some historic bath buildings dated to 15th century in Izmir were determined in order to indicate the properties of repair bricks that will be used in the conservation works of the domes. For this purpose, their basic physical properties, elemental and mineralogical compositions, firing temperatures and microstructural properties were determined by using XRF, XRD, SEM-EDS and TGA analysis. Analysis results indicated that the bricks are of low density, high porosity and were produced from raw materials containing low amounts of calcium poor clays fired at low temperatures (<. 900. °C). They are mainly consisted of small pores with r<. 5. μm that make the bricks more susceptible to salt crystallization and freeze-thaw cycles. Although the bricks were fired at low temperatures and susceptible to salt crystallization and freeze thaw cycles, the structural systems of the domes remained without losing their integrity due to the moderate climatic conditions of Izmir. Repair bricks that will be used in the conservation works of the domes should be compatible with the original ones and produced from calcium poor clays by firing at low temperatures.Article Citation - Scopus: 3Characteristics of Byzantine-Period Lime Mortars and Plasters From the Anaia Church (kadikalesi)(Institute of Metals Technology, Ljubljana, 2022) Işık, Tuğçe; Uğurlu Sağın, ElifIn this study, Byzantine- period lime mortars and plasters used in the Anaia Church in Ku degrees adasy- Aydyn were examined in order to determine their characteristics and investigate the continuity of the lime mortar technology through centuries in the Anaia Church. The results will also contribute to future conservation studies at the site. Basic physical properties, raw-material compositions and hydraulic properties of lime mortars and plasters; mineralogical and chemical compositions, microstructural properties of binders, aggregates and limes; and pozzolanic activities of aggregates were determined using RILEM test methods, XRD, SEM-EDS and TGA. Mortar samples were comprised of natural aggregates whereas lime plasters were made of brick aggregates. Analyses revealed that plasters were slightly less dense and more porous than mortars due to the porous structure of the brick aggregates. All mortars and plasters were hydraulic due to the use of highly reactive pozzolanic aggregates. The basic physical properties, raw-material compositions, mineralogical and chemical compositions of mortars and plasters were found to be similar throughout the construction periods spread over different centuries. These similarities revealed the conscious knowledge of the lime mortar technology during the Byzantine period in Western Anatolia.Article Citation - WoS: 6Citation - Scopus: 3Anadolu’da Roma Dönemi Yapı Tuğlalarının Özellikleri(Gazi Üniversitesi, 2017) Uğurlu Sağın, ElifIn this study, chemical and mineralogical compositions, physical, microstructural and pozzolanic properties of Roman Period building bricks taken from Kizil Avlu (Serapeum) in Pergamon and from several different buildings from ancient sites of Aigai and Nysa were determined by using XRF, XRD, FTIR, SEM-EDS and chemical analyses. Chemical compositions of bricks were evaluted by statistical analyses in order to identify whether or not these bricks were manufactured by using same natural raw material sources. Analyses results indicated that Roman period building bricks were manufactured by using calcium rich clay sources and fired at low temperatures (<900°C). Brick samples were mainly composed of quartz, albite, anorthite, muscovite and hematite. Statistically significant differences found in their chemical compositions revealed that local raw material sources were selected for the manufacturing of historic brick samples belonging to different cities.Article Citation - Scopus: 1Characteristics and Production Technologies of Byzantine Building Bricks From the Anaia Church in Western Anatolia(Springer, 2023) Çam, Elif; Uğurlu Sağın, ElifFired bricks were valued as essential building materials in the central tradition of Byzantine architecture in Constantinople (Istanbul), Anatolia, and the Balkans. In this study, Byzantine bricks from three construction periods, covering nearly nine centuries (fifth-fourteenth centuries), of Anaia Church (Kadikalesi) in Western Anatolia were investigated to determine their characteristics, raw material properties, and production technologies. The characteristics of the bricks were evaluated and compared in order to identify similarities and differences between the periods and to investigate the continuity of the tradition of brick production over centuries. Basic physical and colorimetric properties, chemical and mineralogical compositions, thermal behavior, and microstructural and mechanical properties of bricks were determined by scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (SEM-EDS), Fourier-transform infrared spectrometry (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and mechanical tests. The results indicated that all the bricks in the Anaia Church were brown-beige colored, highly porous, low-density materials with low mechanical strength. They were produced from Ca-rich clays, probably obtained from two different sources used during all construction periods. The mineralogical composition and thermal properties revealed that the bricks from the first and second periods were fired at between 800 and 900 & DEG;C and the bricks from the third period were fired at < 850 & DEG;C. Greater calcium content and firing temperatures were found to reduce the total porosity and the number of small pores (< 10 & mu;m) and increase the mechanical strength of the bricks. The results of the study revealed no significant differences in the production of bricks, including raw material sources and kiln conditions, for the different construction periods of the church.Master Thesis Lime Mortar and Plaster Characteristics of Some Byzantine Period Buildungs in Kadıkalesi (anaia) and Ayasuluk Hill(Izmir Institute of Technology, 2022) Işık, Tuğçe; Uğurlu Sağın, ElifIn this study, characteristics of lime mortars and plasters from Kadıkalesi and Ayasuluk were evaluated by considering the sites, construction periods, function, contained aggregate types. Results compared with Byzantine lime mortar studies. For this purpose, basic physical properties, raw material compositions, geological features, mineralogical and chemical compositions, hydraulic and microstructural properties were determined by RILEM standard test methods, SEM-EDS, XRD and TGA. Also, possible raw material provenances used in the production of mortars and plasters were determined. According to results, pure lime and pozzolanic aggregates were used in the production of these mortars and plasters. Lime/aggregate ratios may have differed as a result of the geological origins of aggregates and raw material resources. The mortars and plasters had hydraulic properties due to the pozzolanic aggregates. Natural aggregates consisted of different types of rocks with angular forms were obtained from breccia sources found in the Menderes Massif units. The differences in mineralogical and chemical compositions revealed that different raw material sources were used in Kadıkalesi and Ayasuluk. Natural aggregates of Kadıkalesi mortars may have been obtained from the mountain slopes of Büyük Menderes containing mostly carbonate rock fragments, while those Ayasuluk's may have been obtained from the mountain slopes of Küçük Menderes containing a high percentage of volcanic particles. Brick aggregates were produced at firing temperatures between 800−900°C using clay with low Ca content. In both sites, the physical properties, chemical, mineralogical compositions and hydraulic properties of lime mortars and plasters did not change significantly according to different construction periods and location of use in the building. The differences determined in their chemical and mineralogical compositions resulted from the type of aggregates used and the diversity of raw material sources. The use of mortars and plasters with similar properties in different periods revealed that the production technology had been transferred and maintained over the centuries, also suitable sources had been consciously chosen to produce hydraulic lime mortars and plasters.Master Thesis Pergamondaki Gymnasium'un Doğu Hamamının Taş Duvarlarındaki Bozulma Problemlerinin Değerlendirilmesi(2025) Aksoy, Yağmur; Sağın, Elif UğurluAntik yapılar, bütünlüklerini tehdit eden sürekli bozunma süreçleriyle karşı karşıyadır; bu gerçek koruma kararlarında mutlaka göz önünde bulundurulmalıdır. Bu çalışma, Pergamon Gymnasiumu'nun Doğu Hamamı'ndaki andezit taş duvarlarda görülen bozulmaları mirasın korunumu perspektifiyle inceler. Uzun süreli atmosferik etkilenime açık yerüstü bölümler, yeraltındaki kalıntılardan farklı bozulma örüntüleri sergiler. Başlıca mekanizmalar tuz kristalleşmesi, don-çözülme döngüleri ve biyolojik kolonizasyondur; nem ve ısıl gerilmeler zamanla yapısal dayanımı zayıflatır. Saha çalışmalarında çatlaklar, yüzey erozyonu, biyolojik gelişim ve malzeme kaybı gibi bozulma biçimleri kaydedilmiş; bunlar Alman Arkeoloji Enstitüsü'nün (DAI) yüzyılı aşkın arşiv görselleriyle ilişkilendirilmiştir. Bozulmanın mekânsal ve zamansal örüntülerini nicel olarak ortaya koymak için ICOMOS-ISCS standartları ile CBS (GIS) ve fotogrametri gibi sayısal haritalama yöntemleri kullanılmıştır. Bulgular, özellikle nem tutulumunun tuz kaynaklı hasarı hızlandırdığı apsis yüzeylerinde ayrılma ve renk değişiminin baskın olduğunu gösterir. Mikroiklim koşullarına açık kuzeybatı duvarlarındaki kesme taşlarda malzeme kaybı belirgindir; gölgeli güneydoğu cephelerinde ise biyolojik kolonizasyon yoğunlaşır. Oda 9 (Frigidarium) ve Oda 7 (Tepidarium), nem sızması ve tuz taşınımıyla ilişkili en yüksek bozulma yoğunluklarına sahip yüksek riskli alanlar olarak tanımlanmıştır. Sonuç olarak, Doğu Hamamı'ndaki bozulma çevresel etkenler, malzeme özellikleri ve mimari kurgunun bileşik etkisiyle şekillenmektedir. Tarihsel görsellerin çağdaş dijital tanılama ile bütünleştirilmesi, arkeolojik alanlarda taş bozunmasını uzun erimde izlemek için yinelenebilir bir çerçeve sunar.Master Thesis Characteristics of Mortars and Plasters of Some Bath Buildings From Aydinoğullari Principality in Selçuk, İzmir(01. Izmir Institute of Technology, 2024) Bilekli, Rabia Nur; Sağın, Elif UğurluThis study examines the properties of the lime mortar and plaster of Isa Bey Bath, Kale Altı Bath, and Yahşi Bey Bath, the last bath buildings that preserved their authentic material structure from the Aydınoğulları Principality in Selçuk. The basic physical properties, raw material, chemical and mineralogical composition, pozzolanic and hydraulic properties of the mortars and plasters were investigated using RILEM standard test methods, SEM-EDS, XRD, and TGA. The interior walls of the baths exhibit two distinct plaster layers in different colors at the lower and upper levels. Lower-level plasters consist of plaster with natural stone aggregate and Horasan plaster, while upper-level plasters consist of plaster with natural stone aggregate and/or lime plaster. The average density and porosity values of Horasan plasters and plaster with natural stone aggregate were 1.71 - 1.48 g/cm³ and 26.83% - 30.70%, respectively. Plasters with natural stone aggregate have higher lime content and lime/aggregate ratio. The natural aggregates used in the mortars and plasters were derived from a raw material source containing minerals of volcanic origin. Brick aggregates were manufactured using low calcium clay at temperatures below 850 ºC. Mortars and plasters have hydraulic characteristics due to the pozzolanic properties of the aggregates used. Basic physical, chemical, and mineralogical compositions and hydraulic properties of mortars and plasters did not have significant differences according to the buildings. The use of raw materials and production techniques with similar properties to produce hydraulic mortars and plasters in historical bath buildings for many years indicates the continuity of local knowledge.Article Citation - WoS: 50Citation - Scopus: 51The Use of Brick-Lime Plasters and Their Relevance To Climatic Conditions of Historic Bath Buildings(Elsevier Ltd., 2009) Uğurlu Sağın, Elif; Böke, HasanBrick-lime mortars and plasters have been widely used as water-proof materials in aqueducts, bridges and cisterns since early Hellenistic time. In this study, the characteristics of brick-lime plasters used in some Ottoman bath buildings were investigated in order to understand their relevance as plasters in hot and humid environmental conditions of the baths. For this purpose, basic physical properties, raw material compositions, mineralogical, microstructural and hydraulic properties of brick-lime plasters of some historic bath buildings in İzmir (Turkey) were determined by XRD, SEM-EDX, AFM and chemical analyses. The results indicated that their survival without loosing their strength and adhesion in hot and humid conditions of the baths was explained by their hydraulic characters due to the consciously use of porous and pozzolanic crushed bricks as aggregate in the manufacturing of plasters.