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    ALTERNATIVE MORTAR PRODUCTION FOR FLOORING BELONGING TO HISTORICAL BUILDING ENVIRONMENTS
    (Serban Solacolu Foundation, 2024) Onur, Ozlem Ozkan; Yerli, Ozgur
    The construction technology, design, and materials of historical structures and their surroundings are among the most important documents of history. The use of original materials in maintenance and repair work is crucial for preserving these structures with their original qualities. In this study, the aim was to produce cement-free lime mortars for the sustainability of natural stones used in the floor covering of Topkap & imath; Palace, one of the most important structures of cultural heritage. In mortar production, 30% air lime was used as a binder, along with varying ratios of brick fragments and dust, yellow sand, clay lime and quartz aggregate, fly ash, tooth snag water, glass fiber, and water. Physical and mechanical analyses of the produced mortars were conducted, as well as FESEM-EDS and XRD analyses for the internal structure of the materials. According to the analysis results, it was determined that the tooth snag water used instead of water had no mechanical effect on the mortars, while fly ash and glass fiber had positive effects on their physical and mechanical properties. These mortars, which have a calcite mineral structure, contain high amounts of Ca, C, O, Si, Mg, Al, and small amounts of Fe and S elements. It can be recommended to use glass fiber and fly ash added mortars, which have high porosity, low unit volume weight, and sufficient compressive strength, in the hard ground pedestrian paths of the structure.
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    Design Process of a Memorial Square to Thank and Respect for Healthcare Workers after Covid-19 Pandemic
    (Bilingual Publishing Group, 2025) Yerli, Ozgur
    Open and green spaces are essential elements of cities. With the COVID epidemic, the importance of the need for open and green spaces in urban areas has become more understood. The aim of this study is to create a new and contemporary square in the working area where the current use and traffic create chaos, to add a new square to the open and green areas in Ankara (Turkey) and to create a connection between this area and the existing open and green areas. At the same time, health workers are honoured through a memorial area integrated into the square. The importance of the location chosen as the study area is that it is surrounded by many public health facilities and is a point of intersection of Ankara’s existing open green space systems. Throughout the three-stage design process, brainstorming sessions were held, drawings and sketches were made, and urban analyses were carried out on transport, culture, art, education, health, open and green spaces. Solutions were proposed for both indoor and outdoor spaces, and the forms were transformed into functional design elements and reflected in the space. As a result, after the pandemic, a city square has been created where people can socialise again, with a monument, a square, water surfaces, an amphitheatre, viewing terraces, a market area, a bridge, sitting and walking areas that are appropriate to the capital. © 2025 Elsevier B.V., All rights reserved.
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    Determination of Environmental Noise Level of Karasu City Center
    (Univ Tehran, 2025) Genc, Adem; Yerli, Ozgur
    Noise has become an important environmental problem in the world. Noise maps play a crucial role in city planning and improving the quality of life for both urban residents and natural resources. The study aimed to measure noise levels in 84 different locations within the Karasu municipality (Sakarya, Turkey), including different land uses, which are significant sources of environmental noise. The study was conducted over a 12-month period to create monthly, seasonal, and annual average noise maps. Statistical analysis was performed on the collected noise data and noise maps were generated. The results showed that traffic was the main source of noise and that the highest levels (79,90 dB) were observed on Istanbul and Ankara avenues. The study found that noise levels varied seasonally and that noise levels in many parts of the city exceeded the levels permitted by the Environmental Noise Assessment and Management Regulation in force in Turkey. Three types of noise barriers were proposed for three different selected locations. As a result, there was a significant and positive relationship between the effects of the measured noise levels in all seasons on each other. Another result is in relation to the spatial characteristics of the measurement point, the change in noise level is significant. According to the analysis the changes in noise levels in spring and summer and the spatial differences in the points where measurements were taken are seen at a significant level.
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    Investigation of the differences in designers' spatial perception in interior spaces using Kokedama
    (Learning Gate, 2024) Yerli, Ozgur
    The word kokedama consists of the Japanese words "koke" (moss) and "dama" (ball). Due to its easily accessible materials and easy construction, it has become an application that almost everyone can do, and its use is expected to become widespread. The aim of this study is to investigate the differences in the spatial perceptions of designers who have received basic design education in different faculties in the case of interiors that including kokedama. To measure the differences in spatial perception, photographs of 8 different public interiors were processed and a survey was administered to the subjects. The survey results were analyzed statistically. According to the results of the study, the increase in the value of the perceptibility and simplicity criteria also increases the value of other criteria. As the value of perceptibility and simplicity increases in kokedama applications, the perception of complexity decreases. This data explains that the use of kokedama contributes positively to spatial perception. The criteria that have the most effect when they are together are the structure/identity and perceptibility criteria. The highest scorers on the criteria affecting spatial perception were graduates of the faculty of fine arts, while the lowest scorers were graduates of the faculty of agriculture. © 2025 Elsevier B.V., All rights reserved.