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Dielectric Mie voids: confining light in air

open access: yesLight: Science & Applications, 2023
We demonstrate that voids in high-index dielectrics support localized resonant modes which are confined in air and thus do not suffer from the loss and dispersion of the host ...
Mario Hentschel   +8 more
doaj   +5 more sources

An Investigation of the Mechanical and Physical Characteristics of Cement Paste Incorporating Different Air Entraining Agents using X-ray Micro-Computed Tomography [PDF]

open access: yesCrystals, 2020
Improving the thermal insulation properties of cement-based materials is the key to reducing energy loss and consumption in buildings. Lightweight cement-based composites can be used efficiently for this purpose, as a structural material with load ...
Mohamed Abd Elrahman   +5 more
doaj   +3 more sources

A Study of Air Voids and Effective Air Voids in Hot Mix Asphalt

open access: hybridTransportation Research Record: Journal of the Transportation Research Board
The concept of air voids (AV) continues to be used as the primary control parameter in the mix design of hot mix asphalt (HMA). AV are estimated from the bulk specific gravity and the maximum specific gravity. Their accurate estimation is very important, since samples for various tests are compacted to target AV, which are calculated on their basis ...
D. Joseph Francis   +2 more
openalex   +2 more sources

Air-void-affected zone in concrete beam under four-point bending fracture

open access: goldJournal of Civil Engineering and Management, 2018
A series of numerical simulations were performed on prenotched four-point bending (FPB) concrete beams containing air voids of different sizes and locations by using the finite element method combined with the cohesive crack model. The void-affected zone
Chuanchuan Zhang, Xinhua Yang, Hu Gao
doaj   +2 more sources

ANALYSIS OF CONNECTED AIR VOIDS IN WARM MIX ASPHALT

open access: yesDyna, 2012
Las mezclas asfálticas tibias (MAT) son mezclas asfálticas producidas a temperaturas reducidas en comparación con las mezclas asfálticas en caliente (MAC) convencionales.
ALLEX E. ALVAREZ   +2 more
doaj   +4 more sources

Air-Void System Characterization of Eco-Cellular Concretes [PDF]

open access: yesJournal of Materials in Civil Engineering, 2021
[EN] Cellular concrete is an alternative to conventional concrete as a low-density and high-insulating building material. The eco-cellular concretes (ECCs) based on geopolymer technology have been recently introduced by the scientific community. A form of ECC was studied, in which the fluid catalytic cracking residue and the blast furnace slag were ...
Font-Pérez, Alba   +4 more
openaire   +2 more sources

Application of X-ray tomography to assess fatigue structural changes in asphalt mixtures [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2019
The article presents an analysis of the change in air voids in asphalt mixtures subjected to fatigue tests at three temperatures of 0°C, 10°C and 25°C.
P. Mackiewicz, A. Szydło
doaj   +1 more source

Fracture Behavior Analysis of Semi-Circular Bending Test [PDF]

open access: yesMATEC Web of Conferences, 2019
The objective of this paper is to investigate the effect of air voids on the fracture properties of asphalt mixtures using SCB test in Discrete Element Method (DEM).
Renteria David   +2 more
doaj   +1 more source

Indices relation and statistical probability analysis of physical and mechanical performance of asphalt mixtures

open access: yesCase Studies in Construction Materials, 2022
Rutting deformation is one of the most prominent diseases in asphalt pavement’s early damage. In this paper, it analyzes the relation and their distribution law between Marshall stability and the physical and mechanical indices of asphalt mixtures based ...
Rui Guo, Fei zhou, Tengfei Nian
doaj   +1 more source

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