Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Arash Nikvar-Hassani"'
Autor:
Umar Amjad, Hamad Alnuaimi, Arash Nikvar-Hassani, Imraan Bokhari, Lianyang Zhang, Tribikram Kundu
Publikováno v:
2022 49th Annual Review of Progress in Quantitative Nondestructive Evaluation.
Continuous monitoring is the most desirable approach for ensuring the health/integrity of concrete structures. It is particularly difficult to monitor concrete structures due to their non-linear nature and random distribution of constituents. Evaluat
Autor:
Hadi Farhadian, Arash Nikvar-Hassani
Publikováno v:
Quarterly Journal of Engineering Geology and Hydrogeology. 53:655-660
The characterization of squeezing phenomena as a geological hazard is of great importance because squeezing has a crucial role in the selection of the route and type of tunnels and in the characteristics of the excavation device. Tunnel squeezing is
Autor:
Lianyang Zhang, Arash Nikvar Hassani
Publikováno v:
Materials and Structures. 55
Publikováno v:
Journal of Materials in Civil Engineering. 34
This paper investigates the incorporation of ordinary portland cement (OPC) to adjust/improve the workability, setting time, and compressive strength of Class F fly ash (FA)–based geopolyme...
Autor:
Saptarshi Sasmal, Tribikram Kundu, U. Amjad, Arash Nikvar-Hassani, Hamad N. Alnuaimi, Lianyang Zhang
Publikováno v:
Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems. 5
This paper investigates the applicability of the nondestructive testing and evaluation (NDT&E) method using ultrasonic signals to monitor the curing of alkali-activated fly ash-based concrete (AAFC). The evaluation was carried out on AAFC specimens w
Autor:
Lianyang Zhang, Arash Nikvar-Hassani, Hamad N. Alnuaimi, Saptarshi Sasmal, Tribikram Kundu, U. Amjad
Publikováno v:
ACI Materials Journal. 118
Publikováno v:
Construction and Building Materials. 337:127571
Publikováno v:
Quarterly Journal of Engineering Geology and Hydrogeology. 54
The characterization of geological hazards is of great importance to underground space, in particular, tunnelling projects since it plays a critical role in selection of the tunnel route, the type and characteristics of the excavation, and adopted te
Publikováno v:
Construction and Building Materials. 324:126695
Autor:
Hadi Farhadian, Arash Nikvar-Hassani
Publikováno v:
Bulletin of Engineering Geology and the Environment. 78:3833-3849
Indeed, determination of groundwater inflow into tunnels, especially in discontinuous rock masses, is still one of the most challenging issues faced by tunneling experts, which may have destructive consequences and result in impediments to tunneling