Abstract

The effective porosity is a required parameter for the mass flow rate calculations in groundwater hydrogeology. It is also a useful parameter in geotechnical engineering. In this paper, a methodology based on the tracer analysis technique is proposed to measure the effective porosity of clays. A test apparatus was developed and operational conditions were optimized to measure the effective porosity in the laboratory. Then the effective porosity of three clays under different chemical environments was measured. The measured effective porosity values showed that there is no unique effective porosity value for a given clay when tested under different chemical environments. The ratio of effective to total porosity values for silty and low plastic clays decreased while those for high plastic clay increased with the increase in degree of contamination.

Issue Section:
Research Papers
Keywords:
porosity, contamination, clays, contaminant transport, soil structure, tracer analysis, effective porosity, chemical environments, clays

References

1.
Barden
,
L.
,
1972
, “
The Relation of Soil Structure to the Engineering Geology of Clay Soil
,”
The Quarterly of Engineering Geology
, Vol.
5
, pp.
85
-
102
.
Google Scholar
Crossref
Search ADS
 
2.
Bentley
,
H. W.
 and
Walter
,
G. R.
,
1983
, “
H-2 Two-well Recirculating Tracer Tests, the proposed Waste Isolation Pilot Plant (WIPP)
,”
South East New Mexico, Sandia National Laboratory
, Contract Report No. Sand 83-7014, Albuquerque, NM,
1983
.
3.
Collins
,
K.
 and
McGown
,
A.
,
1974
, “
Form and Function of Microfabric Features in a Variety of Natural Soils
,”
Geotechnique
 0016-8505, Vol.
24
, pp.
223
-
254
.
Google Scholar
Crossref
Search ADS
 
4.
Delage
,
P.
 and
Leferbvre
,
G.
,
1984
, “
Study of the Structure of a Sensitive Champlain Clay and its Evolution During Consolidation
,”
Canadian Geotechnical Journal
 0008-3674, Vol.
21
, Part I, pp.
21
-
35
.
Google Scholar
Crossref
Search ADS
 
5.
El-Kiki
,
F. E.
 and
Hassan
,
H. A.
,
1971
, “
New Approach for Porosity Determination by Auger-Hole Method
,”
Journal of the Geological Society of Iraq
, Vol.
VI
, pp.
93
-
99
.
6.
El-Kiki
,
F. E.
,
Hassan
,
H. A.
, and
Al-Amir
,
M. A.
,
1975
, “
Field Determination of Permeability by the Effective Porosity Tracer Method under Conditions of Constant Pumping Rate
,”
Journal of the Geological Society of Iraq
, Vol.
III
, pp.
125
-
130
.
7.
Gonzalez
,
D. D.
 and
Bentley
,
H. W.
,
1984
, “
Field Test for Effective Porosity and Dispersivity in Fractured Dolomite, The WIPP, Southeastern New Mexico
,” Water Resources Monograph Series 9,
USDA
,
Washington, DC
.
Google Scholar
Crossref
Search ADS
 
8.
Hazzaa
,
I. B.
,
Girgis
,
R. K.
, and
Saad
,
K. F.
,
1965
, “
A Method for the Determination of Aquifer Parameters Using Radio Active Isotopes
,”
International Journal of Applied Radiation and Isotopes
 0020-708X, Vol.
16
, pp.
487
-
493
.
Google Scholar
Crossref
Search ADS
 
9.
Hazzaa
,
I. B.
,
Girgis
,
R. K.
, and
Saad
,
K. F.
,
1966
, “
Study of the Applicability of Different Radioisotopes for Determination of the Porosity of Ground Water Aquifer
,”
International Journal of Appl. Radiation and Isotopes
, Vol.
17
, pp.
621
-
628
.
Google Scholar
Crossref
Search ADS
 
10.
Horton
,
R.
,
Thompson
,
M. L.
, and
McBride
,
J. F.
,
1985
, “
Estimating Transit Times of Non-interacting Pollutants Through Compacted Soil Materials
,” EPA/600/9-85/013,
Proceedings
,
Eleventh Annual Research Symposium, EPA
,
Cincinnati, OH
,
04
1985
.
11.
Horton
,
R.
,
Thompson
,
M. L.
, and
McBride
,
J. F.
,
1987
, “
Method of Estimating the Travel Time of Noninteracting Solutes Through Compacted Soil Material
,”
Soil Science Society of America Journal
 0361-5995, Vol.
51
, pp.
48
-
53
.
Google Scholar
Crossref
Search ADS
 
12.
IAEA
,
1968
, “
Guide Book on Nuclear Techniques in Hydrology
,”
International Atomic Energy Agency
,
Vienna
.
13.
Meegoda
,
N. J.
 and
Rajapakse
,
R.
,
1989
, “
The Influence of Chemical Contaminants on the Permeability and Effective Porosity of Clays
,”
Second report to the National Science Foundation
,
New Jersey Institute of Technology
,
Newark, NJ
,
09
1989
.
14.
Olsen
,
H. W.
,
1962
, “
Hydraulic Flow Through Saturated Clays
,”
Clays and Clay Minerals
 0009-8604, Vol.
11
, pp.
131
-
161
.
15.
Olson
,
R. E.
 and
Mitronovas
,
F.
,
1962
, “
Shear Strength and Consolidation Characteristics of Calcium and Magnesium Illite
,”
Clays and Clay Minerals
 0009-8604, Vol.
11
, pp.
185
-
209
.
16.
Peyton
,
G. R.
,
Gibb
,
J. P.
,
LeFaivre
,
M. H.
, and
Ritchey
,
J. D.
,
1985
, “
On the Concept of Effective Porosity and its Measurement in Saturated Fine-Grained Porous Materials
,”
Proceedings
,
Second Canadian/American Conference on Hydrogeology
,
Banff, Alberta, Canada
, published by
National Water Well Association
,
Dublin, OH
.
17.
Peyton
,
G. R.
,
Gibb
,
J. P.
,
LeFaivre
,
M. H.
,
Ritchey
,
J. D.
,
Burch
,
S. L.
, and
Barcelona
,
M. J.
,
1986
, “
Effective Porosity of Geologic Materials
,” EPA/600/9-86/022,
Proceedings
,
Twelfth Annual Research Symposium, EPA
,
Cincinnati, OH
.
18.
Pusch
,
W. H.
,
1970
, “
Microstructural Changes in Soft Quick Clay at Failure
,”
Canadian Geotechnical Journal
 0008-3674, Vol.
7
, No.
1
, pp.
1
-
7
.
Google Scholar
Crossref
Search ADS
 
19.
Quigley
,
R. M.
 and
Thompson
,
C. D.
,
1966
, “
The Fabric of Anisotropically Consolidated Sensitive Marine Clay
,”
Canadian Geotechnical Journal
 0008-3674, Vol.
III
, No.
2
, pp.
61
-
73
.
Google Scholar
Crossref
Search ADS
 
20.
Rosenqvist
,
I. Th.
,
1959
, “
Physico-Chemical Properties of Soils: Soil Water Systems
,”
Journal of SMFE Division
, ASCE, Vol.
85
, No.
SM2
, Part I, pp.
31
-
53
.
21.
U.S. Environmental Protection Agency
,
1982
,
Federal Register
, Monday,
18
12
1982
, pp.
32274
-
32388
.
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