+ Translate
+ Most Popular
Gaucher's disease;thirty-two years experience at Siriraj Hospital
A study of Macrobathra Meyrick from China (Lepidoptera, Cosmopterigidae)
First occurrence in ores of tetragonal chalcocite
Effects of trace element nutrition on sleep patterns in adult women
N.Z. range management guidelines. 2. Design of grazing management systems for tussock country
A case of lipoma of the esophagus
A revision of world Acanthosomatidae (Heteroptera: Pentatomidae): keys to and descriptions of subfamilies, tribes and genera, with designation of types
Life history of the coronate scyphozoan Linuche unguiculata (Swartz, 1788)
Perceptual restoration of obliterated sounds
Mutagenicity studies on two chromium(III) coordination compounds
The formation of the skeleton. I. Growth of a long bone. 1st appearance of a center of calcification
Leucopenia and abnormal liver function in travellers on malaria chemoprophylaxis
The joint commission: four key root causes loom large in sentinel event data
Treatment of vitiligo with topical 15% lactic acid solution in combination with ultra violet-A
Behaviour of dairy cows within three hours after feed supply: I. Influence of housing type and time elapsing after feed supply
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Management and control of patients with type 2 diabetes mellitus in Lebanon: results from the International Diabetes Management Practices Study (IDMPS)
The diet composition and nutritional knowledge of patients with anorexia nervosa
Physoporella croatica Herak, 1958 of the Slovak karst Anisian (Slovakia, the West Carpathians Mts.)
Bright lights, big noise. How effective are vehicle warning systems?
Ein Plesiosaurier-Rest mit Magensteinen aus mittlerem Lias von Quedlinburg
Incidence of Chlamydia trachomatis in patients with sterility
Monster soup: the microscope and Victorian fantasy
Preliminary tests with residual sprays against poultry lice
Duration of the life of plants in phylogeny

Size distributions of pore water and entrapped air during drying-infiltration processes of sandstone characterized by water-expulsion porosimetry

Size distributions of pore water and entrapped air during drying-infiltration processes of sandstone characterized by water-expulsion porosimetry

Water Resources Research 48(9)

ISSN/ISBN: 0043-1397

DOI: 10.1029/2011wr011782

The transport of pore water in a rock during drying-infiltration processes was characterized by water-expulsion porosimetry. In this method, pore water is expelled by increasing gas pressure in a stepwise fashion, and the amounts of water in each pore size class are determined. Fontainebleau sandstone, having an open porosity of 6% and main pore radii of 1 20 ?m, was used. The change in size distribution of pore water was determined as a function of the degree of drying. As the drying proceeded, the amount of water decreased first in the larger pores followed by the smaller pores. Next, water was infiltrated into the sample preliminarily adjusted to various water saturations (Spre-flow), and the entrapped air saturation, hydraulic conductivity (K), and size distribution of pore water were measured. As Spre-flow decreased, the entrapped air saturation increased and K decreased as approximated by K ? Sflow4.5, where Sflow is the water saturation after the infiltration. A comparison of the size distributions of pore water before and after the infiltration revealed that the ease of water infiltration (air entrapment) depends on pore size. If pores of >8 ?m radii were emptied by drying, they were readily refilled with water, whereas smaller pores were only partially refilled because air was trapped in them. The experimentally measured K-Sflow relationship generally agreed with those predicted by the Mualem-van Genuchten model and its modified version accounting for air entrapment, but some differences in the size distribution of pore water were observed between the experiment and the models.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 036595805

Download citation: RISBibTeXText

Related references

Porosimetry of vesicular volcanic products by a water-expulsion method and the relationship of pore characteristics to permeability. Journal of Geophysical Research 114.B2, 2009

Complete characterization of pore size distribution of tilled and orchard soil using water retention curve, mercury porosimetry, nitrogen adsorption, and water desorption methods. Geoderma 135: 307-314, 2006

Mercury cyclic porosimetry: Measuring pore-size distributions corrected for both pore-space accessivity and contact-angle hysteresis. Journal of Colloid and Interface Science 599: 255-261, 2021

Pore size distributions in low-κ dielectric thin films from X-ray porosimetry. Journal of Polymer Science. Part B. Polymer Physics 40(19): 2170-2177, 2002

Improvement of the dynamic water-expulsion method for pore size distribution measurements. American Ceramic Society Bulletin 65(9): 1297-1300, 1986

Are pore size distributions in microfiltration membranes measurable by two-phase flow porosimetry ?. Journal of Membrane Science 120(2): 169-185, 1996

Pore and throat size distributions determined by mercury porosimetry and by direct observation. Carbonates and Evaporites 3(1): 1-16, 1988

Pore-level modeling of isothermal drying of pore networks effects of gravity and pore shape and size distributions on saturation and transport parameters. Eci Conference on Solid-Liquid Separation Systems Iv 111(2-3): 237-252, 2005

Comparison of low-field NMR and mercury intrusion porosimetry in characterizing pore size distributions of coals. Fuel 95: 152-158, 2012

An NMR protocol for determining ice crystal size distributions during freezing and pore size distributions during freeze-drying. Applied Magnetic Resonance 17(4): 537-556, 1999

Mercury porosimetry: An inappropriate method for the measurement of pore size distributions in cement-based materials. Cement and Concrete Research 30(10): 1517-1525, 2000

Mercury porosimetry of ordered sphere compacts: investigation of intrusion and extrusion pore size distributions. Powder Technology 55(3): 193-205, 1988

Pore size distributions in microporous membranes. II: Bulk characterization of track-etched filters by air porometry and mercury porosimetry. Journal of Colloid and Interface Science 176(2): 467-478, 1995

Permeable porosity of refractory castables evaluated by the water-expulsion porosimetry technique. Journal of the American Ceramic Society 84(1): 236-238, 2001

Estimation of permeability of sedimentary rocks by applying water-expulsion porosimetry to Katz and Thompson model. Engineering Geology 177: 75-82, 2014