Characterizing saline uptake and salt distributions in porous limestone with neutron radiography and X-ray micro-tomography

被引：38

作者：

Derluyn, Hannelore ^{[1
,2
]}

Griffa, Michele ^{[2
]}

Mannes, David ^{[3
]}

Jerjen, Iwan ^{[2
]}

Dewanckele, Jan

Vontobel, Peter ^{[3
]}

Sheppard, Adrian ^{[5
]}

Derome, Dominique ^{[2
]}

Cnudde, Veerle ^{[4
]}

Lehmann, Eberhard ^{[3
]}

Carmeliet, Jan ^{[1
,2
]}

机构：

[1] ETH, Chair Bldg Phys, CH-8093 Zurich Honggerberg, Switzerland

[2] EMPA, Swiss Fed Labs Mat Sci & Technol, Dubendorf, Switzerland

[3] Paul Scherrer Inst, Spallat Neutron Source Div, Villigen, Switzerland

[4] Univ Ghent, SGIG UGCT, Dept Geol & Soil Sci, B-9000 Ghent, Belgium

[5] Australian Natl Univ, Res Sch Phys & Engn, Dept Appl Math, Canberra, ACT, Australia

来源：

JOURNAL OF BUILDING PHYSICS | 2013年 / 36卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

Limestone; neutron radiography; X-ray micro-tomography; saline uptake; salt crystallization; FLOW;

D O I：

10.1177/1744259112473947

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Samples of Savonnieres limestone subjected to repeated wetting-drying cycles were investigated by both neutron radiography and X-ray micro-tomography to collect information on saline uptake and salt precipitation. Capillary uptake of water, 1.4 molal sodium sulphate and 5.8 molal sodium chloride solution was visualized with neutron radiography. The liquid penetration coefficients and diffusivities were determined and are markedly lower for the salt solutions than for water, due to the higher surface tension and viscosity of salt solutions. Halite distributions were derived from neutron radiographs. Porosity analysis of X-ray tomographic datasets allowed quantifying thenardite distributions and porosity decrease due to salt crystallization.

引用

页码：353 / 374

页数：22

共 27 条

[1] Concentration and temperature dependence of surface parameters of some aqueous salt solutions [J].

Ali, K ;

Anwar-ul-Haq ;

Bilal, S ;

Siddiqi, S .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2006, 272 (1-2) :105-110

[2] Compensation of ring artefacts in synchrotron tomographic images [J].

Boin, Mirko ;

Haibel, Astrid .

OPTICS EXPRESS, 2006, 14 (25) :12071-12075

[3] Three-Dimensional Analysis of High-Resolution X-Ray Computed Tomography Data with Morpho+ [J].

Brabant, Loes ;

Vlassenbroeck, Jelle ;

De Witte, Yoni ;

Cnudde, Veerle ;

Boone, Matthieu N. ;

Dewanckele, Jan ;

Van Hoorebeke, Luc .

MICROSCOPY AND MICROANALYSIS, 2011, 17 (02) :252-263

[4]

Carmeliet J., 2007, Proceedings of the 12th Symposium for Building Physics, P228

[5]

Carmeliet J., 2004, Journal of Thermal Envelope and Building Science, V27, P277, DOI DOI 10.1177/1097196304042324

[6]

Derluyn H., 2012, THESIS ETH ZURICH SW

[7] Historical building stones in the province of Limburg (NE Belgium): role of petrography in provenance and durability assessment [J].

Dreesen, R ;

Dusar, M .

MATERIALS CHARACTERIZATION, 2004, 53 (2-4) :273-287

[8] PRACTICAL CONE-BEAM ALGORITHM [J].

FELDKAMP, LA ;

DAVIS, LC ;

KRESS, JW .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1984, 1 (06) :612-619

[9] Salt damage in porous materials: how high supersaturations are generated [J].

Flatt, RJ .

JOURNAL OF CRYSTAL GROWTH, 2002, 242 (3-4) :435-454

[10] Viscosities of aqueous solutions of electrolites - Part I Sodium sulphate solutions over the temperature range 25-40 degrees [J].

Glass, HM ;

Madgin, WM .

JOURNAL OF THE CHEMICAL SOCIETY, 1934, :1124-1128

← 1 2 3 →