Results 21 to 30 of about 147,317 (357)

Investigative Study of Vertical Electrodes Encased in Concrete/Mortar with Various Sizes of Air Voids

open access: yesEnergies, 2021
Ionisation can occur in the soil when high impulse currents are subjected to grounding systems. This occurrence is generated by a difference in the dielectric strength value between the soil and air voids.
Hanis Hamizah Hizamul-Din   +3 more
doaj   +1 more source

Investigation of Premature Distress Around Joints in PCC Pavements: Parts I & II [PDF]

open access: yes, 2012
Some of the Indiana concrete pavements constructed within the last 10-20 years have shown signs of premature deterioration, especially in the areas adjacent to the longitudinal and transverse joints.
Arribas-Colón, Maria del Mar   +3 more
core   +2 more sources

Influences by Air Voids on the Low-Temperature Cracking Property of Dense-Graded Asphalt Concrete Based on Micromechanical Modeling

open access: yesAdvances in Materials Science and Engineering, 2016
This study characterized the impacts of air voids on the low-temperature cracking behavior of dense-graded asphalt concrete. Virtual low-temperature bending beam test for dense-graded asphalt concrete was built and executed by discrete element method and
Tao Ma   +4 more
doaj   +1 more source

Calculation and Characterization of Air Void in Mortar of the Hot Mix Asphalt (HMA) Based on CT Scanning and Image Analysis Methods

open access: yesApplied Sciences, 2023
The air void content is one of the most important volumetric properties of asphalt matrixes, such as asphalt mixtures or mortars, because it can greatly affect the performance of the matrix.
Li-Heng Shu   +4 more
doaj   +1 more source

Nanometer-Scale Precision Tuning of 3D Photonic Crystals Made Possible Using Polyelectrolytes with Controlled Short Chain Length and Narrow Polydispersity [PDF]

open access: yes, 2013
Nanometer‐scale tuning of the optical properties of prefabricated photonic crystals is achieved via layer‐by‐layer assembly of polyelectrolytes in the interstitial spaces of the photonic lattice.
Arsenault, André C.   +8 more
core   +2 more sources

Compensation for air voids in photoacoustic computed tomography image reconstruction [PDF]

open access: yes, 2016
Most image reconstruction methods in photoacoustic computed tomography (PACT) assume that the acoustic properties of the object and the surrounding medium are homogeneous.
Anastasio, Mark A.   +3 more
core   +1 more source

Water- and frost-resistance of crushed stone mastic asphalt concrete prepared on sevilen-modified bitumen

open access: yesВестник СибАДИ, 2022
Introduction. Currently, increasing the durability of road asphalt concrete pavements is one of the urgent issues, the solution of which provides a significant economic effect achieved by increasing the turnaround time, as well as the overall service ...
V. V. Yadykina   +2 more
doaj   +1 more source

Effect of Air- and Water-Filled Voids on Neutron Moisture Meter Measurements of Clay Soil

open access: yesVadose Zone Journal, 2018
Air- and water-filled voids around neutron moisture meter (NMM) access tubes have been cited as sources of volumetric water content (θ) measurement error in cracking clay soils.
Dianna K. Bagnall   +5 more
doaj   +1 more source

Influence of Humidity on Voids Formation Inside the Solder Joint [PDF]

open access: yes, 2013
Void is defined such as blow hole in the solder joint. Voids may degrade the mechanical and conductive properties of the solder joint and thus decrease the reliability. Article deals with influence of humidity on voids formation inside the solder joint
Brejcha, M.   +4 more
core   +1 more source

Vacuum mixing technology to improve the mechanical properties of ultra-high performance concrete [PDF]

open access: yes, 2015
Ultra-high performance concrete is an important evolution in concrete technology, enabled by the combination of a good particle packing density, a suitable mixing procedure and compatible binders and admixtures.
De Schutter, Geert, Dils, Jeroen
core   +2 more sources

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