Nader karballaeezadeh
I currently work at Technical and Vocational University (TVU) as a lecturer. My research interests include the Application of Machine Learning in Transportation Engineering, Pavement Management Systems, Bridge Management Systems, Geometric Design of Highways, and Transportation Infrastructures Safety. Email: N.karballaeezadeh@gmail.com
less
Uploads
The mechanical parameters, such as slump, compressive strength, water absorption, tensile strength, electrical resistivity, rapid freezing, half-cell potential and appearance, are investigated, and a specific concentration and impurities of wastewater that cause a 10% compressive strength reduction were found. The results showed that the usage of industrial wastewater does not significantly change the main characteristics of concrete. Although increasing the concentration of wastewater can decrease
the durability and strength features of concrete nonlinearly, the negative effects on durability tests
are more conspicuous, as utilizing concentrated wastewaters disrupt the formation of appropriate air
voids, pore connectivity and pore-size distribution in the concrete.
The mechanical parameters, such as slump, compressive strength, water absorption, tensile strength, electrical resistivity, rapid freezing, half-cell potential and appearance, are investigated, and a specific concentration and impurities of wastewater that cause a 10% compressive strength reduction were found. The results showed that the usage of industrial wastewater does not significantly change the main characteristics of concrete. Although increasing the concentration of wastewater can decrease
the durability and strength features of concrete nonlinearly, the negative effects on durability tests
are more conspicuous, as utilizing concentrated wastewaters disrupt the formation of appropriate air
voids, pore connectivity and pore-size distribution in the concrete.
are of utmost importance for reliable mobility in the smart cities of the future. Given the importance of urban train lines, tunnels, and subway stations, these structures should be meticulously analyzed. In this research, two-dimensional modeling and analysis of the soil-structure mass of the Alan Dasht station of Mashhad Urban Train are studied. The two-dimensional modeling was conducted using Hashash’s method and displacement interaction. After calculating the free-field resonance and side distortion of the soil mass, this resonance was entered into PLAXIS finite element program, and finally, stress and displacement contours together with the bending moment, shear force and axial force curves of the structure were obtained.