BCCCE 20204rth International Balkans Conference on Challenges of Civil Engineeringhttp://dspace.epoka.edu.al/handle/1/19212024-03-29T10:40:24Z2024-03-29T10:40:24ZStudy of Microstructure of Waste Tyre Ash (WTA) Concrete Using the Scanning Electron Microscopy (SEM) and X – ray Diffraction (XRD) TechniquesMagana Aliyu, MuhammadAdamu, Musahttp://dspace.epoka.edu.al/handle/1/19472021-03-25T14:47:49Z2020-12-18T00:00:00ZStudy of Microstructure of Waste Tyre Ash (WTA) Concrete Using the Scanning Electron Microscopy (SEM) and X – ray Diffraction (XRD) Techniques
Magana Aliyu, Muhammad; Adamu, Musa
This paper reports the findings of an investigation into the microstructure of WTA – Concrete. The
WTA was obtained by open burning of waste tyre slices to a temperature of about 5000C for about five (5)
hours at the local open burning sites in Kano. And after allowing to cool, it was sieved through 75 µm BS
Sieve and characterized. The ash was subjected to chemical composition analysis using the X-Ray
fluorescence (XRF) analytical method using the X –Ray spectrometer machine. The investigation was carried
out on a concrete of 29 N/mm2 compressive strength, Water – cement ratio (w/c) of 0.65 and slump range
of 10 – 50mm. The microstructure assessment was conducted on the concrete at WTA replacement levels
of 0, 5, 10, 15, 20, 25, and 30% of cement weight, respectively to determine the influence of WTA on the
microstructure of WTA – Concrete using SEM and XRD techniques. Both SEM analysis and XRD results of
WTA – concrete indicated the occurrence of pozzolanic reaction between WTA and cement and that the
WTA has more porous micro-structure than OPC concrete especially at hig
2020-12-18T00:00:00ZBehavior of RC frames under quasi-static diagonal loadsLuga, ErionMustafaraj, EneaLika, Ervishttp://dspace.epoka.edu.al/handle/1/19462021-03-25T14:45:35Z2020-12-18T00:00:00ZBehavior of RC frames under quasi-static diagonal loads
Luga, Erion; Mustafaraj, Enea; Lika, Ervis
The aim of this investigation is to analyze the mechanical behavior of reinforced concrete frames
under diagonal loads. The study provides a combination of analytical and experimental work related to the
quasi-static diagonal loading of the reinforced concrete frames. The analytical modeling of the RC frames
was performed in ETABS software on a real scale frame, whereas the experimental test was performed on
a RC frame of a scale 1/3 of the analytical model. The load displacement curves were built from both the
investigation methods and the maximum strength, yielding point, maximum displacement parallel and
perpendicular to the loads, Modulus of Elasticity, and ductility factor (Rµ) of the RC frames were obtained
and analyzed.
2020-12-18T00:00:00ZPublic-Private Partnerships in Albania: From the Legislative Provisions to Risk ManagementKeçi, Julindahttp://dspace.epoka.edu.al/handle/1/19452021-03-01T19:14:10Z2020-12-18T00:00:00ZPublic-Private Partnerships in Albania: From the Legislative Provisions to Risk Management
Keçi, Julinda
2020-12-18T00:00:00ZPolypropylene reinforced mortar coating for improvement of unreinforced masonry (URM) shear resistanceMustafaraj, EneaYardim, YavuzCorradi, Marcohttp://dspace.epoka.edu.al/handle/1/19442021-03-01T19:12:45Z2020-12-18T00:00:00ZPolypropylene reinforced mortar coating for improvement of unreinforced masonry (URM) shear resistance
Mustafaraj, Enea; Yardim, Yavuz; Corradi, Marco
2020-12-18T00:00:00Z