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Comparative analysis of air permeability between UHPC and epoxy-coated normal concrete for hyperloop tube structures [PDF]
HeliyonThis study evaluates the air permeability of epoxy-coated normal concrete and ultra-high performance concrete (UHPC) for use in Hyperloop tube structures, where maintaining ultra-low air permeability is crucial to preserving the vacuum environment. While
Dae Sang Kim +3 more
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Estimation Liquid Permeability Using Air Permeability Laboratory Data
Iraqi Journal of Chemical and Petroleum Engineering, 2014 Permeability data has major importance work that should be handled in all reservoir simulation studies. The importance of permeability data increases in mature oil and gas fields due to its sensitivity for the requirements of some specific improved ...
Jalal Abdulwahid Al-Sudani +2 more
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Journal of Asian Architecture and Building Engineering, 2023 This study aims to investigate the impacts of compressive strength and curing conditions of concrete on pore size distribution and air permeability. An empirical correlation was developed by analyzing the results from existing studies that measured both ...
Jaeyoung Lee, Kazunori Harada
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Tailoring the Porosity and Breathability of Nanofiber Webs with Mesh Size of the Deposition Material
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2023 Nano and micro-pores of the electrospun webs present good moisture vapor transmission rate, while it maintains resistance to pressured air and resistance to liquid for some type of clothing.
Nida Oğlakçıoğlu, Çiğdem Akduman
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Development of air tightness prediction method of masonry walls [PDF]
E3S Web of Conferences, 2020 Recently, the construction of external walls of various blocks, which are externally insulated with mineral wool thermal insulation layer, with ventilated air gap and external finishing (ventilated wall structures) is becoming popular for public and ...
Geležiūnas Valdemaras +3 more
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Flow Behavior Caused by Air Permeability of Ski Jumping Suit Fabric
Proceedings, 2020 The purpose of this study was to investigate the effect of the air permeability of ski jumping suit fabric on aerodynamic characteristics. In the study, four types of fabric with different air permeabilities were installed onto a fabric-clothed elliptic ...
Yuki Kataoka +4 more
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Journal of Natural Fibers, 2021 The influence of air, oxygen and argon plasma treatment on the thermal comfort behavior of cotton woven fabric which is spun from modified yarn path in ring spinning has been investigated in this study.
A. Jebastin Rajwin, C. Prakash
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Influence of carbonation on torrent air permeability of concrete
Acta Polytechnica, 2023 Air permeability testing is increasingly being used to measure the impermeability of concrete and to estimate the durability of reinforced concrete structures using this property.
Roman Jaskulski +2 more
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Relationship between air diffusivity and permeability coefficients of cementitious materials
RILEM Technical Letters, 2020 In this study, the relationship between air diffusivity and permeability in cementitious materials was investigated to theoretically investigate the relationship between diffusion and air permeability coefficients.
Yuya Sakai
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New testing device for air permeability
Communications in Development and Assembling of Textile Products, 2023 Air permeability is used to characterize textile fabrics with respect to their usability as a garment or filter, airbag or parachute. It depends on the fabric’s porosity, air voids in the fabric, yarn specifications, thickness and other parameters ...
Lilia Sabantina, Andrea
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