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Çağla Akgül

Department of Civil Engineering
Experimental and theoretical study on elastic properties of crystalline alkali silicate hydrate
Moon, Juhyuk; Kim, Seungchan; Akgül, Çağla; Bae, Sung-Chul; Clark, Simon Martin (Elsevier BV, 2020-01-05)
Mechanical properties of synthesized sodium silicate mineral, Na-kanemite, was investigated by synchrotron-based high-pressure x-ray diffraction experiment and first-principles calculations. Under hydrostatic pressure, the...
Effect of envelope insulation on building heating energy requirement, cost and carbon footprint from a life-cycle perspective
Altun, Murat; Akgül, Çağla; Akcamete, Asli (Journal of the Faculty of Engineering and Architecture of Gazi University, 2020-01-01)
Space heating is the dominant item of energy consumption of buildings in Turkey. Effective building envelope insulation, especially in early design phase, is the most common passive solution that significantly reduces the ...
Impact of climate change on the existing residential building stock in Turkey: An analysis on energy use, greenhouse gas emissions and occupant comfort
Gürsel Dino, İpek; Akgül, Çağla (Elsevier BV, 2019-10-01)
With the growing need for residential buildings as a result of population growth, the building sector is a high-priority area in climate change due to its large share of CO2 emissions, the significant energy saving opportu...
Approaching Net-Zero Energy Building Through Utilization of Building-Integrated Photovoltaics for Three Cities in Turkey-Preliminary Calculations
Uygun, Umut; Akgül, Çağla; Gürsel Dino, İpek; Akınoğlu, Bülent Gültekin (2018-07-06)
This research addresses the impact of the building integrated photovoltaic (BIPV) solutions on the performance of a residential building with the area of 2247 m(2) at different regions of Coastal Anatolia. Three cities are...
Investigation of Terrestrial Laser Scanning Reflectance Intensity and RGB Distributions to Assist Construction Material Identification
Hassan, Muhammad Usman; Akçamete Güngör, Aslı; Akgül, Çağla (2017-07-07)
t: Terrestrial Laser Scanning (TLS) allows collection of dense 3D point cloud data that captures a structure's as-is conditions. The geometric information from the collected data could be used to generate a 3D-model of the...
Performance of alkali-activated Turkish Fly Ashes at high temperatures
Akgül, Çağla (2017-04-02)
Safety assessment of limestone-based engineering structures to be partially flooded by dam water: A case study from northeastern Turkey
GÖKÇEOĞLU, CANDAN; Türer, Ahmet; Nefeslioglu, H. A.; TÜRER, DİLEK; Akgül, Çağla (2016-07-15)
Turkey has been faced with an escalating energy demand and recurring droughts within the last few decades. The construction of the BAGISTAS 1 Hydroelectric Power Plant Dam, one of the dams constructed in order to solve the...
Spatial distribution of crystalline corrosion products formed during corrosion of stainless steel in concrete
Serdar, Marijana; Akgül, Çağla; Kunz, Martin; Bjegovic, Dubravka; Wenk, Hans-Rudolf; Monteiro, Paulo JM (2015-05-01)
The mineralogy and spatial distribution of nano-crystalline corrosion products that form in the steel/concrete interface were characterized using synchrotron X-ray micro-diffraction (mu-XRD). Two types of low-nickel high-c...
Ordering of water in opals with different microstructures
Eckert, Jürgen; Gourdon, Olivier; Jacob, Dorrit E; Akgül, Çağla; Monteiro, Paulo JM; Vogel, Sven C; Wirth, Richard; Wenk, HansRudolf (2015-03-01)
Opal has long fascinated scientists. It is one of the few minerals with an amorphous structure, and yet, compared to silica glass, it is highly organized on the mesoscale. By means of inelastic neutron scattering (INS), we...
Mechanical properties, durability, and life-cycle assessment of self-consolidating concrete mixtures made with blended portland cements containing fly ash and limestone powder
Çelik, Kemal; Akgül, Çağla; Gursel, A. Petek; Mehta, P Kumar; Horvath, Arpad; Monteiro, Paulo JM (2015-02-01)
This paper reports the composition and properties of highly flowable self-consolidating concrete (SCC) mixtures made of high proportions of cement replacement materials such as fly ash and pulverized limestone instead of h...