Hydraulic conductivity of compacted kaolin-sand specimens under high hydraulic gradients
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
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in: Electronic Journal of Geotechnical Engineering, Jahrgang 17 , Nr. F, 2012, S. 783-799.
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
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TY - JOUR
T1 - Hydraulic conductivity of compacted kaolin-sand specimens under high hydraulic gradients
AU - Steiakakis, E.
AU - Gamvroudis, C.
AU - Komodromos, Andreas
AU - Repouskou, E.
PY - 2012
Y1 - 2012
N2 - Sand and kaolin compacted mixtures were tested in the laboratory to investigate the effect of applied hydraulic gradient on the hydraulic conductivity measurement. Kaolin clay was added to the samples at a percentage 15, 30, 50, 70, 85 and 100% by dry weight, and hydraulic conductivity tests were performed on specimens prepared at 2% above optimum moisture content. The tests were conducted under different hydraulic gradients, using a rigid wall pressure permeameter. A definite pattern of non-Darcy behavior was recognizable in the poorly graded samples with low plasticity and fines content less than 30%. For samples with greater amount of fines and medium plasticity, Darcy behavior was observed, without a noticeable change in the flow behavior.
AB - Sand and kaolin compacted mixtures were tested in the laboratory to investigate the effect of applied hydraulic gradient on the hydraulic conductivity measurement. Kaolin clay was added to the samples at a percentage 15, 30, 50, 70, 85 and 100% by dry weight, and hydraulic conductivity tests were performed on specimens prepared at 2% above optimum moisture content. The tests were conducted under different hydraulic gradients, using a rigid wall pressure permeameter. A definite pattern of non-Darcy behavior was recognizable in the poorly graded samples with low plasticity and fines content less than 30%. For samples with greater amount of fines and medium plasticity, Darcy behavior was observed, without a noticeable change in the flow behavior.
KW - Construction engineering and architecture
KW - High hydraulic gradients
KW - Hydraulic conductivity
KW - Rigid wall permeameter
UR - http://www.scopus.com/inward/record.url?scp=84859582035&partnerID=8YFLogxK
M3 - Journal articles
AN - SCOPUS:84859582035
VL - 17
SP - 783
EP - 799
JO - Electronic Journal of Geotechnical Engineering
JF - Electronic Journal of Geotechnical Engineering
SN - 1089-3032
IS - F
ER -