Results 11 to 20 of about 147,317 (357)
Damage Detection Using Ultrasonic Techniques in Concrete-Filled Steel Tubes (CFSTs) Columns
Sensors, 2022 Concrete-filled steel tubes (CFSTs) are structural elements that, as a consequence of an incorrect elaboration, can exhibit internal defects that cannot be visualized, being usually air voids.
Antonio Callejas +3 more
doaj +1 more source
Void Suppression in Glass Frit Bonding Via Three-Step Annealing Process
Micromachines, 2022 In this work, void formation was systematically observed for the glass frit bonding technique as a function of the annealing temperature, annealing time, and annealing ambient.
Yifang Liu +3 more
doaj +1 more source
Nondestructive evaluation of air voids in concrete structures using microwave radar technique
SICE Journal of Control, Measurement, and System Integration, 2022 Nondestructive inner inspection techniques are essential to certify the safety or health of concrete structures, and one of the important issues in these inspections is the detectability of thin air voids or cracks.
Jun-ya Takayama, Yuki Ohara, Wei Sun
doaj +1 more source
Evaluation of Void Defects behind Tunnel Lining through GPR forward Simulation
Sensors, 2022 Voids, a common defect in tunnel construction, lead to the deterioration of the lining structure and reduce the safety of tunnels. In this study, ground-penetrating radar (GPR) was used in tunnel lining void detection. Based on the finite difference time
Xianlong Wu +4 more
doaj +1 more source
Applied Sciences, 2019 The air voids distribution has a significant effect on the pavement performance related distresses such as rutting, cracking, moisture damage and permeability.
Guangji Xu +4 more
doaj +1 more source
Advances in Civil Engineering, 2020 With the rapid development of asphalt pavement, the drainage capacity of asphalt pavement is becoming more and more demanding. Therefore, it is imperative to study the permeable asphalt mixture.
Jin-rong Wu, Fei Li, Qin-yong Ma
doaj +1 more source
Lime stabilisation for earthworks: a UK perspective [PDF]
, 2014 Lime stabilisation is a versatile technique applied during earthworks operations. Modern soil recycling units are much more efficient at pulverising fill material and intermixing the added binder/water than machinery available 20 years ago.
Beetham P +37 more
core +2 more sources
Energy-Efficient Low-Complexity Algorithm in 5G Massive MIMO Systems [PDF]
, 2021 Energy efficiency (EE) is a critical design when taking into account circuit power consumption (CPC) in fifth-generation cellular networks. These problems arise because of the increasing number of antennas in massive multiple-input multiple-output ...
A. Hamzah, Shipun +6 more
core +1 more source
Effect of water-based acrylic copolymer on void systems of cementitious repair mortar
Case Studies in Construction Materials, 2019 Recent literature has found excessive air content as a drawback in the polymer-modified cement mortars. Excessive air content has an adverse impact on the compressive strength of polymer-modified, cement-based mortars.
Hamid Akhavan Kharazian +3 more
doaj +1 more source
Three-Dimensional Permeability Study of Open Graded Friction Course (OGFC) Based on CFD Simulation
Civil and Environmental Engineering, 2022 This research evaluated permeability and hydraulic conductivity of Open Graded Friction Course (OGFC) in multiple directions. Using Computational Fluid Dynamics (CFD), Ansys Fluent was utilized to simulate the laminar flow model for twelve cubic ...
Elkhateeb Omar +3 more
doaj +1 more source