3 results on '"Bozdağ, Ali"'
Search Results
2. An assessment of deterioration in cultural heritage: the unique case of Eflatunpınar Hittite Water Monument in Konya, Turkey.
- Author
-
Bozdağ, Ali, İnce, İsmail, Bozdağ, Ayla, Hatır, M. Ergün, Tosunlar, M. Bahadır, and Korkanç, Mustafa
- Subjects
- *
CULTURAL property , *BUILDING stones , *MONUMENTS , *NONDESTRUCTIVE testing , *QUARRIES & quarrying , *PRESERVATION of monuments - Abstract
Stone monuments are important symbols of cultural heritage of countries. However, many environmental factors negatively affect these monuments. The increasing damage on the stone monuments and the danger of irreversible loss of cultural heritage have resulted in growing efforts for the preservation of the monuments. Eflatunpınar Hittite Water Monument in Beyşehir, Konya, Turkey, is a unique Hittite cultural monument that has survived for nearly 3200 years even though it has been exposed to many environmental effects. In this study, non-destructive testing (NDT) was used to detect the degradation on the building stones of the Eflatunpınar Hittite Water Monument and change-deterioration maps were prepared subsequently. It was also investigated whether the chemistry of the Eflatunpınar spring water may cause deterioration. Additionally, the petrographic, chemical, and physico-mechanical properties of the rocks taken from the ancient stone quarry were determined in order to compare with the properties of the monument's building stones. Based on the physico-chemical characteristics of the Eflatunpınar spring water and XRD results of crusts in building stone surface of the monument, it was identified that water can be effective on the formation of calcite and gypsum crusts especially in the lower parts of the monument. However, applied NDT methods and change-deterioration maps indicated that the deterioration as well as neglect and abandonment in the monument are mostly associated with the capillary effect of the flowing water through the structure and the deterioration effect is more apparent in contact points between the building stone and the flowing water. Additionally, in the building stones above the capillary front, the conservation condition is significantly better. [ABSTRACT FROM AUTHOR] more...
- Published
- 2020
- Full Text
- View/download PDF
Catalog
3. Tuz (NaCl) kristallenmesinin kayaçların mühendislik parametreleri üzerine etkisi
- Author
-
Bozdağ, Ali, Günaydın, Osman, Jeoloji Anabilim Dalı, and Enstitüler, Fen Bilimleri Enstitüsü, Jeoloji Mühendisliği Ana Bilim Dalı
- Subjects
Textural properties ,Tuz kristallenmesi ,Salt crystallization ,Bozunma ,Yapı taşı ,Jeoloji Mühendisliği ,Weathering ,Geological Engineering ,Dokusal özellikler ,Fiziko-mekanik özellikler ,Building stones ,Physico-mechanical properties - Abstract
Bu çalışma, Konya, Aksaray, Niğde, Nevşehir, Kayseri, Kırşehir, Muğla, Mersin ve Karaman illerinden alınan ve yapı taşı olarak kullanılan farklı porozite ve dokusal özelliklere sahip 10 farklı kayacın ısı etkisi ile tuz kristallenmesine karşı göstermiş oldukları dayanımları değerlendirmek için yapılmıştır. Çalışmada kullanılan 10 farklı kayacın, tuz (NaCl) kristallenmesi sonucu fiziko-mekanik özelliklerinde meydana gelen değişimler; porozite, kuru birim ağırlık, ağırlıkça su emme, sonik hız, tek eksenli sıkışma dayanımı, nokta yük dayanım indeksi, Brazilian (dolaylı) çekilme dayanımı, agrega darbe dayanım değeri, suda aşınmaya karşı duraylılık testi değerleri, Böhme aşınma kaybı ve Los Angeles aşınma kaybı değerleri ile belirlenmiştir. Ayrıca, tuz kristallenmesi deneyi sonrasında kayaçların fiziksel ve mühendislik özelliklerindeki değişimler, bozunma sabiti ve yarılanma ömrü kavramları ile sayısal olarak ifade edilmiştir. Tuz kristallenmesi periyot sayısının ilerlemesi ile kayaçların porozite, ağırlıkça su emme ve kuru ağırlık kaybı değerlerinde artış, P dalgası yayılma hızında ise azalma gözlenmiştir. Tuz kristallenmesi deneyi sonucu kayaçların indeks özelliklerinde en fazla değişim mermer, spilit ve tüf örneklerinde en az değişim ise granit ve bazalt örneklerinde meydana gelmiştir. Kayaçların tuz kristallenmesi deneyi sonucunda elde edilen dayanım parametrelerine göre granit ve bazaltın en fazla dayanıma sahip, mermerin ise en az dayanıma sahip olduğu belirlenmiştir. Aşınma parametrelerine göre en fazla aşınma mermer, spilit ve tüf örneklerinde en az aşınma ise granit ve bazalt örneklerinde meydana gelmiştir. Tuz kristallenmesi sonucu kayaçlarda meydana gelen bozunmalar makroskobik ve mikroskobik ölçekte incelenmiş ve elde edilen verilere göre mikro çatlaklar, süreksizlikler, minerallerin çeşidi ve boyutu, porozite ve minerallerde var olan alterasyonlar tuz kristalizasyon deneyi sonucunda kayaçların bozunmasına etki eden faktörler olduğu belirlenmiştir., This study assesses the resistances of 10 different rocks, which have different porosity and textural properties and were taken from Konya, Aksaray, Niğde, Nevşehir, Kayseri, Kırşehir, Muğla, Mersin, and Karaman provinces and also are widely being used as building stones, against salt crystallization with thermal effect The changes in physico-mechanical properties of the 10 different rocks with the effect of salt crystallization have been determined by porosity, dry unit weight, water absorption in weight, sonic velocity, uniaxial compressive strength, point load strength index, Brazilian (indirect) tensile strength, aggregate impact value, Slake durability test values, Bohme and Los Angeles abrasion values. In addition, the changes in physical and engineering properties of rocks due to salt crystallization were expressed numerically with decay constant and half-life concepts. Porosity, water absorption in weight, dry unit weight loss values of rocks increased with an increase salt crystallization cycles, but P-wave velocity values decreased with an increase salt crystallization cycles. The maximum change in index properties of rocks with the effect of salt crystallization has been observed in samples of marble, spilite, and tuff; the minimum change has been observed in samples of granite and basalt. According to the mechanical parameters of rocks obtained from salt crystallization test, granite and basalt have maximum strength; marble has the least strength. According to the abrasion parameters of rocks, the maximum abrasion has occurred in samples of marble, spilite, and tuff; the minimum abrasion has occurred in samples of granite and basalt. Weathering occurring in rocks with the effect of salt crystallization was examined the macroscopic and microscopic scale. According to these data, it was determined that micro cracks, discontinuities, type and size of minerals, porosity, alterations existing minerals are factors affecting the weathering of rocks as a result of salt crystallization more...
- Published
- 2013
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.