Sürdürülebilir Kalkınma Amaçları
Yayınlar
- MakaleAçık Erişim2024Investigation of the Usability of Eastern Black Sea Region Natural Stones as Aggregate in Concrete Production
Yilmaz, Tekin; Koç, Ercüment; Osman Yilmaz, Ali
Aggregate is found in a very high amount (65-80%) in concrete, which is one of the most substantial building materials of the construction sector. In this sense, this research was designed on the investigation of the usability of natural stones (andesite, basalt, mudstone and travertine) brought from different locations of the Eastern Black Sea Region as aggregates in concrete production. Within this scope, some physical and mechanical tests were implemented on the natural stone samples prepared at different sample shapes (cylindrical core, cube and crushed aggregate), and the findings obtained from tests were evaluated in terms of aggregate standards determined by TS 706 EN 12620+A1 (2009). The findings showed that basalt rock, which provides the most favorable physical and mechanical performance, is suitable for usage as concrete aggregate.
- MakaleYalnız künye2022Investigation of usability of building rubble as road underfill
Külekçi, Gökhan; Osman Yilmaz, Ali
For resources to be used efficiently, the structures built on the earth must be long-lasting. The longevity of the roads built with a length of millions of kilometers per year is determined by the nature of the filling material, traffic, equivalent axle load, climatic effects, material fatigue, and layer thicknesses used. The fact that filling material complies with the standards and is easily available will ensure that the road construction works are both economical and long-lasting. Many building rubbles are formed from the buildings that have completed their lives in the urban transformation process. Storage and disposal of this building's rubble are very difficult. To eliminate these difficulties, the usage areas of the rubble should be increased. In this study, some mechanical experiments were carried out on the building rubble obtained from the Black Sea region, and these were interpreted. Grain density, freeze-thaw tests, Micro-Deval, and Determination of Fragmentation Resistance, tests were carried out according to TSE and ASTM standards of aggregates obtained from building rubble. The results obtained from the experiments were compared with the technical specifications of the General Directorate of Highways. It has been revealed that the analyzed aggregate can be used as road fill in highways.