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| 1 | Visualization and quantification of water movement in porous cement-based materials by real time thermal neutron radiography:Theoretical analysis and experimental study显示文摘Water movement in porous cement-based materials is of great importance when studying their deterioration processes and durability.Many traditional methods based on mass changes,electricity or nuclear magnetic resonances are available for studying water transport in cement-based materials.In this research,an advanced technique i.e.thermal neutron radiography was utilized to achieve visualization and quantification of time dependent water movement including water penetration and moisture vapor in porous cement-based materials through theoretical analysis and experimental study.Because thermal neutrons ex-perience a strong attenuation by hydrogen,neutron radiography exhibits high sensitivity to small amounts of water.A neutron transmission analysis for quantitative evaluation of raw radiographic measurements was developed and optimized based on point scattered functions(PScF).The determinations of the real time and space dependent water penetration into uncracked and cracked mortar samples,as well as the drying process have been presented in this paper.It is illustrated that thermal neutron radiography can be a useful research tool for visualization and quantification of water movement in porous building materials.The obtained results will help us to better understand deteriorating processes of cement-based materials and to find ways to improve their durability. | ZHANG Peng1,WITTMANN F H1,2,ZHAO TieJun1,LEHMANN E3 & JIN ZuQuan1 1 Center for Durability & Sustainability Studies of Shandong Province,Qingdao Technological University,Qingdao 266033,China 2 Aedificat Institute Freiburg,Freiburg D-79100,Germany 3 Department of Spallation Neutron Source(ASQ),Paul Scherrer Institute,Villigen PSI CH-5232,Switzerland | 2010 | Science China(Technological Sciences)2010，53，5： | 6 |
| 2 | Embedded Librarians: One Library's Model for Decentralized Service 显示文摘 | Freiburger G Kramer S | 2009 | Journal of the Medical Library Association2009，，2： | 1 |
| 3 | HIV gag mutants can dominantly interfer with the replication of the 'wild type' virus显示文摘 | Freiburg MB Bartimore D | 1989 | Cell1989，59，： | 1 |
| 4 | Tissue-specific expression and alpha aetinin binding properties of the Z-disc titin: implications for the nature of vertebrate Z-discs 显示文摘 | Sorimachi H Freiburg A Kolmerer B | 1997 | Mol Biol1997，270，5： | 1 |
| 5 | Embedded librarians:One library's model for decentralized service显示文摘 | Freiburger G Kramer S | 2009 | Journal of Library Administration2009，97，2： | 1 |
| 6 | Embedded librarians : One library' s model for decentralized service 显示文摘 | Freiburger G Kramer S | 2009 | Journal of the Medical Library Association2009，97，2： | 1 |
| 7 | Core-doped ceramic Nd:YAG laser 显示文摘 | KRACHT D FREIBURG D WILHELM R | 2006 | Optics Express2006，14，17： | 1 |
| 8 | Differential expression of cardiac titin isoforms and modulation of cellular stiffness 显示文摘 | Freiburg A Helmes M | 2000 | Cire Res2000，86，： | 1 |
| 9 | Phosphorylation switchesspecific for the cardiac isoform of myosin binding protein-C:a modulatorof cardiac contraction?显示文摘 | Gautel M Zuffardi O Freiburg A | 1995 | EMBO J1995，14，9： | 1 |
| 10 | Discussion of “crystallographic characterization of the Al-Co decagonal quasicrystal and its monoclinic approximant T2-Al13Co4”显示文摘 | B. Grushko C. Freiburg | 1994 | Metallurgical and Materials Transactions A1994，，11： | 1 |
| 11 | Embedded Librarians: One Library's Model for Decentralized Service 显示文摘 | Freiburger G Kramer S | 2009 | Journal of the Medical Library Association2009，，2： | 1 |
| 12 | Tissue-specific expression and a-actinin binding properties of the Z-disc titin:implications for the nature of vertebrate Z-discs显示文摘 | SORIMACHI H FREIBURG A KOLMERER B | 1997 | Journal of Molecular Biology1997，270，： | 1 |
| 13 | The chimney procedure is an emergently available endovascular solution for visceral aortic aneurysm rupture显示文摘 | Schl?觟sser FJ Aruny JE Freiburg CB | 2011 | J Vasc Surg2011，53，： | 1 |
| 14 | Tissue-specific expres- sion and alpha-actinin binding proper- ties of the Z-disc titin: implications for the nature of vertebrate Z-discs 显示文摘 | SORIMACHI H FREIBURG A KOLM- ERER B | 1997 | Journal of Molecular Biology1997，270，5： | 1 |
| 15 | 显示文摘 | Cazorla O Freiburg A Helmes M | 2000 | Circ Res2000，86，： | 1 |
| 16 | The isolation of gamones 3 and 4 of Euplotes octocarinatus 显示文摘 | Dieckhoff SH Freiburg M Heckman K 1987 | 1987 | Eur J Biochem1987，168，1： | 1 |
| 17 | Cheosensory event-related potentials in relation to side of stimulation, age, sex, and stimulus concentration 显示文摘 | STUCK B A FREY S FREIBURG C | 2006 | Clin Neurophysiol2006，117，： | 1 |
| 18 | Titin transcripts in thymomas 显示文摘 | Skeie G O Freiburg A Kolmerer B | 1998 | Ann N Y Acad1998，841，53： | 1 |
| 19 | Core-Doped Ceramic Nd∶YAG Laser显示文摘 | Kracht D Freiburg D Wilhelm R | 2006 | Optics Express2006，14，7： | 1 |
| 20 | Tifin transcripts in thymomas 显示文摘 | Skeie GO Freiburg A Kolmemr B | 1997 | Journal of autoimmunity1997，10，： | 1 |
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