Estimating Porosity and Particle Size for Hydraulic Conductivity of Binary Mixed Soils Containing Two Different-Sized Silica Particles
- Authors
- Choo, Hyunwook; Lee, W.; Lee, C.; Burns, S. E.
- Issue Date
- Jan-2018
- Publisher
- ASCE-AMER SOC CIVIL ENGINEERS
- Keywords
- Hydraulic conductivity; Mixed soils; Porosity; Particle size; Constant head test
- Citation
- JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, v.144, no.1, pp.1 - 9
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
- Volume
- 144
- Number
- 1
- Start Page
- 1
- End Page
- 9
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/190801
- DOI
- 10.1061/(ASCE)GT.1943-5606.0001802
- ISSN
- 1090-0241
- Abstract
- This study investigates the hydraulic conductivity (K) of binary mixed soils containing two different-sized silica particles, with the ultimate goal of developing the porosity (n) and equivalent particle size (deq) estimating formulas for binary mixed soils. Theoretical backgrounds for K of mixed soils were reviewed. In addition, a series of constant head permeameter tests for mixtures with three different size ratios between small and large particles were performed. It is demonstrated that the K of tested materials decreases with an increase in volume fraction of small particles (SCV) when SCV<SCV(volumetric critical small particle content) because of the decreases in both n and deq. In contrast, when SCV>SCV shows less change with SCV because of the offset mechanism between increased n and decreased <mml:msub>deq. Additionally, n and deq estimating methods for mixed soils are suggested in this study and compared with the experimental results.
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