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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 | Comparison of infectious waste management in European hospitals显示文摘 | Muhlieh M Scherrer M Daschner F D | 2003 | Journal of Hospital Infection2003，55，4： | 1 |
| 3 | Light absorption measurements of diesel particulate matter显示文摘 | SCHERRER H C KITTELSON D B DOLAN D F | 1981 | SAE1981，，81： | 1 |
| 4 | Medical Office Automation Integrated into the Distributed Architecture of Hospital Information System显示文摘 | Scherrer J R Revillard C Borst F | 1994 | Methods of Information in Medicine1994，33，2： | 1 |
| 5 | A process based assessment of the potential to reduce flood runoff by land use change 显示文摘 | Naef F Scherrer S Weiler M | 2002 | Journal of Hydrology2002，267，： | 1 |
| 6 | About the choice of accepta- bility limits in external quality assessment schemes显示文摘 | Scherrer F Boisson R C Cartier R | 2007 | Ann Biol Clin (Paris)2007，65，6： | 1 |
| 7 | Genetic and environmental influences on posttraumatic stress dis-order, alcohol and drug dependence in twin pairs显示文摘 | XIAN H CHANTARUJIKAPONG S I SCHERRER J F | 2000 | Drug andalcohol dependence2000，61，1： | 1 |
| 8 | A comparison of the latent class structure of cannabis problems among adult men and women who have used cannabis repeatedly显示文摘 | Grant J D Scherrer J F Neuman R J | 2006 | Addiction2006，101，8： | 1 |
| 9 | Distributed local MRF models for tissue and structure brain segmentation 显示文摘 | Scherrer B Forbes F Garbay C | 2009 | IEEE Transactions on Medical Imaging2009，28，8： | 1 |
| 10 | Distributed local MRF models for Issue and structure brain segmentation显示文摘 | SCHERRER B FORBES F GARBAY C el al | 2009 | IEEE Transaclions On Medical Imaging2009，28，8： | 1 |
| 11 | Filtered X-ray diodes for imploding plasma experiments显示文摘 | Young F C Stephanakis S J Scherrer V E | 1986 | Rev Sci Instrum1986，57，： | 1 |
| 12 | Heritability of self-reported health显示文摘 | Romeis J C Scherrer J F Xian H | 2000 | Health Serv Res2000，35，51： | 1 |
| 13 | Electrochemicalinsertion of magnesium into hydrated vanadium bronzes显示文摘 | SCHERRER P SCHEIFELE W JOHO F | 1995 | J Elec-trochem Soc1995，142，： | 1 |
| 14 | A conserved repetitive DNA element located in the centromere of cereal chromosomes显示文摘 | Jiang J Nasuda S Dong F Scherrer C.W Woo S.S Wing R.A Gill B.S Ward D.C | | 0，，： | 1 |
| 15 | Direct Compar-ison of the Bond Strength Results of the DifferentTest Methods: a Critical Literature Review 显示文摘 | Scherrer S S Cesar P F Swain M V | 2010 | Dental Materials2010，26，2： | 1 |
| 16 | Distributed Local MRF Models for Tissue and Structure Brain Segmentation显示文摘 | SCHERRER B FORBES F GARBAY C | | 0，，08： | 1 |
| 17 | A decision scheme to indicate dominant hydrological flow processes on temperater grassland 显示文摘 | Scherrer S Naef F | 2003 | Hydrological Processes2003，17，2： | 1 |
| 18 | Lung fluid movements in hypoxia显示文摘 | SARTORI C RIMOLDI S F SCHERRER U | 2010 | Prog Cardiovasc Dis2010，52，6： | 1 |
| 19 | A Process Based Assessment of the Potential to Reduce Flood Runoff by Land Use Change显示文摘 | Naef F Scherrer S Weiler M | 2002 | Journal of Hydrology2002，267，： | 1 |
| 20 | Thermoelectric properties of semi-conducting compound Zn4Sb3显示文摘 | CHITROUB M BESSE F SCHERRER H | | 0，，01： | 1 |
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