A new simple and low-cost air permeameter for unsaturated soils

Rui Chen; Jun Wen Huang; Chao Zhou; Yang Ping; Zhong Kui Chen

doi:10.1016/j.still.2021.105083

A new simple and low-cost air permeameter for unsaturated soils

Rui Chen, Jun Wen Huang, Chao Zhou, Yang Ping, Zhong Kui Chen

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

Air permeability, k_a, plays an important role in understanding the air transport behavior in unsaturated soils. As for the measurement of k_a, existing air permeameters using steady-state methods are relatively complicated and costly. Therefore, in this study, a new simple and low-cost air permeameter was developed, which can supply steady air pressure on soil specimen and measure the flow rate of air through soil specimen accurately. To verify the reliability of this new air permeameter, a comparison of k_a of clay, silt loam, and sandy loam specimens measured using the new air permeameter and the one proposed in ASTM D6539 was conducted. One-way analysis of variance shows that the difference of the results from the two air permeameters is not significant (p > 0.05).

Original language	English
Article number	105083
Journal	Soil and Tillage Research
Volume	213
DOIs	https://doi.org/10.1016/j.still.2021.105083
Publication status	Published - Sept 2021

Keywords

Air permeability
Air permeameter
Air pressure
Flow rate
Unsaturated soil

ASJC Scopus subject areas

Agronomy and Crop Science
Soil Science
Earth-Surface Processes

More information

10.1016/j.still.2021.105083

http://hdl.handle.net/10397/98000

Cite this

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title = "A new simple and low-cost air permeameter for unsaturated soils",

abstract = "Air permeability, ka, plays an important role in understanding the air transport behavior in unsaturated soils. As for the measurement of ka, existing air permeameters using steady-state methods are relatively complicated and costly. Therefore, in this study, a new simple and low-cost air permeameter was developed, which can supply steady air pressure on soil specimen and measure the flow rate of air through soil specimen accurately. To verify the reliability of this new air permeameter, a comparison of ka of clay, silt loam, and sandy loam specimens measured using the new air permeameter and the one proposed in ASTM D6539 was conducted. One-way analysis of variance shows that the difference of the results from the two air permeameters is not significant (p > 0.05).",

keywords = "Air permeability, Air permeameter, Air pressure, Flow rate, Unsaturated soil",

author = "Rui Chen and Huang, {Jun Wen} and Chao Zhou and Yang Ping and Chen, {Zhong Kui}",

note = "Funding Information: This work was supported by the Guangdong Basic and Applied Basic Research Foundation [grant number2020B1515120083]; the National Natural Science Foundation of China [grant number 51578196 and 51808171]; the Guangdong Natural Science Foundation [grant number 2018A030310018]; the Shenzhen Key Laboratory Launching Project [grant number ZDSYS20200810113601005]. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

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AU - Chen, Rui

AU - Huang, Jun Wen

AU - Zhou, Chao

AU - Ping, Yang

AU - Chen, Zhong Kui

N1 - Funding Information: This work was supported by the Guangdong Basic and Applied Basic Research Foundation [grant number2020B1515120083]; the National Natural Science Foundation of China [grant number 51578196 and 51808171]; the Guangdong Natural Science Foundation [grant number 2018A030310018]; the Shenzhen Key Laboratory Launching Project [grant number ZDSYS20200810113601005]. Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/9

Y1 - 2021/9

N2 - Air permeability, ka, plays an important role in understanding the air transport behavior in unsaturated soils. As for the measurement of ka, existing air permeameters using steady-state methods are relatively complicated and costly. Therefore, in this study, a new simple and low-cost air permeameter was developed, which can supply steady air pressure on soil specimen and measure the flow rate of air through soil specimen accurately. To verify the reliability of this new air permeameter, a comparison of ka of clay, silt loam, and sandy loam specimens measured using the new air permeameter and the one proposed in ASTM D6539 was conducted. One-way analysis of variance shows that the difference of the results from the two air permeameters is not significant (p > 0.05).

AB - Air permeability, ka, plays an important role in understanding the air transport behavior in unsaturated soils. As for the measurement of ka, existing air permeameters using steady-state methods are relatively complicated and costly. Therefore, in this study, a new simple and low-cost air permeameter was developed, which can supply steady air pressure on soil specimen and measure the flow rate of air through soil specimen accurately. To verify the reliability of this new air permeameter, a comparison of ka of clay, silt loam, and sandy loam specimens measured using the new air permeameter and the one proposed in ASTM D6539 was conducted. One-way analysis of variance shows that the difference of the results from the two air permeameters is not significant (p > 0.05).

KW - Air permeability

KW - Air permeameter

KW - Air pressure

KW - Flow rate

KW - Unsaturated soil

UR - http://www.scopus.com/inward/record.url?scp=85107812864&partnerID=8YFLogxK

U2 - 10.1016/j.still.2021.105083

DO - 10.1016/j.still.2021.105083

M3 - Journal article

AN - SCOPUS:85107812864

SN - 0167-1987

VL - 213

JO - Soil and Tillage Research

JF - Soil and Tillage Research

M1 - 105083

ER -

A new simple and low-cost air permeameter for unsaturated soils

Abstract

Keywords

ASJC Scopus subject areas

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