群馬大学理工学研究院 コンクリート工学研究室

English page

Associate Professor

Mitsuo Ozawa (Dr.Eng.)

准教授 小澤満津雄

Department of Environmental Engineering Science at Gunma University

Address: Kiryu, Tenjin-cho 1-5-1, 376-8515, Japan
mail
Specialty: Construction material, Fire engineering

Biographical sketch
Mitsuo Ozawa is an Associate Professor in Department of Environmental Engineering Science at Gunma University in Kiryu, Japan.

He received his Dr. of Eng. in Department of Engineering from Gifu in December 2002. His Doctoral thesis was "Estimation of initial stress of concrete early-age". He was Research Associate at Gifu University in 1997-2007, Assistant Professor at Gifu University in 2007-2013. Ozawa is a member of Architectural Institute of Japan (AIJ), Japan Society of Civil Engineers (JSCE), Japan Association for Fire Science and Engineering(JFA) and Japan Concrete Institute (JCI).

Research Interests

  • SIF14 poster
    1. THERMAL PROPERTIES OF JUTE FIBER CONCRETE AT HIGH TEMPERATURES
    2. DEVELOPMENT AND EVALUATION OF A MODEL FOR FIRE-RELATED HSC SPALLING FAILURE
  • Thermal stress estimation in relation to spalling of HSC restrained with steel rings at high temperatures
  • Preventive effect on spalling of Ultra-high strength fiber reinforced Concrete using jute fiber at high temperature
  • Expansion Energy and Hydration Products of Expansive Mortar at Different Temperatures
  • Reduction of Autogenous Shrinkage in Cement Paste by Internal Curing Using Jute Fiber
  • Monitoring the Explosive Spalling of Concrete at Fire Condition by Means of the Acoustic Emission Technique
  • Evaluation of creep of high strength concrete at early ages

International Journal

  1. Mitsuo Ozawa,Hiroaki Morimoto: Effects of various fibres on high-temperature spalling in high-performance concrete,Construction and Building Materials 71 (2014) 83–92
  2. M.Ozawa, Z. Bo, Y. Uchida, H. Morimoto:Preventive Effects of Fibers on Spalling of UFC at High Temperatures, Journal of Structural Fire Engineering, Volume 5, Number 3, pp.229-238,2014
  3. T. Tanibe, M.Ozawa, R. Kamata and K. Rokugo:Steel Ring-Based Restraint Of HSC Explosive Spalling In High Temperature Environments, Journal of Structural Fire Engineering, Volume 5, Number 3, pp.239-250,2014
  4. M.Ozawa,S.Uchida,T.Kamada, H.Morimoto:Study of mechanisms of explosive spalling in high-strength concrete at high temperatures using acoustic emission,Journal of Construction & Building Materials,37,621-628,2012.

International conference paper

  1. K. Kawabe, M.Ozawa, and Y.Sakoi : Permeability of High-Performance Concrete After Exposure to Fire, Proceedings of The 6th International Conference of ACF (ACF 2014) (Acceptance)
  2. T.Tanibe, M.Ozawa, R.Kamata, Y.Uchida and K. Rokugo : Development and Evaluation of a Model for Fire-Related HSC Spalling Failure、 Proceedings of the 8th International Conference on Structures in Fire,pp.411-418,2104
  3. M.Ozawa, C. G. Cheol, G.Y.Kim , R.Sato and K. Rokugo : Thermal Properties of Jute Fiber Concrete at High Temperatures, Proceedings of the 8th International Conference on Structures in Fire,pp.1211-1218,2104
  4. M.Ozawa, K. Suhara, H. Morimoto:Expansion Energy and Hydration Products of Expansive Mortar at Different Temperatures, International Conference on Sustainable Construction Materials & Technologies,2013
  5. T. Tanibe, M.Ozawa, R. Kamata, R. Sato and K. Rokugo:Thermal stress estimation in relation to spalling of HSC restrained with steel rings at high temperatures, Concrete Spalling due to Fire Exposure: Proceedings of the 3rd International Workshop, Paris, France, September 25-27, 2013, P. Pimienta and F. Meftah (Eds.), MATEC Web of Conferences, Vol. 6 (2013), 01004-p.1~p.7
  6. M.Ozawa, Z. Bo, J. Kawaguchi and Y. Uchida : Preventive effect on spalling of UFC using jute fiber at high temperature, Concrete Spalling due to Fire Exposure: Proceedings of the 3rd International Workshop, Paris, France, September 25-27, 2013, P. Pimienta and F. Meftah (Eds.), MATEC Web of Conferences, Vol. 6 (2013), 02006-p.1~p.7           
  7. M.Ozawa,H.Morimoto: Reduction of Autogenous Shrinkage in Cement Paste by IC Using Jute Fiber,ACI Fall 2012 Convention,Session on The Economics,Performance,and Sustainability of Internally Cured Concrete,Toronto,SP 290-4,4.1-4.12,2012.
  8. T.Tanibe,M.Ozawa,R. Kamata,K. Rokugo:Steel Ring-Based Restraint of HSC Explosive spalling in high-Temperature Environments,Proceedings of 7th International Conference on Structures in Fire, M.Fontana, A.Frangi, M. Knobloch (Eds.), 747-755,Zurich(Switerland),2012.6.
  9. M.Ozawa,Z. Bo,Y. Uchida,H. Morimoto:Preventive Effects of Different Types of Fibers on UFC Spalling at High Temperatures,Proceedings of 7th International Conference on Structures in Fire, M. Fontana, A. Frangi, M. Knobloch (Eds.), 747-755, Zurich(Switerland),2012.6. 
  10. M.Ozawa,S.Uchida,T.Kamada,H.Morimoto: Monitoring the Explosive Spalling of Concrete at Fire Condition by Means of the Acoustic Emission Technique, ACI Fall 2012 Convention, Session on Applications of Acoustic Emission for Reinforced Concrete,Toronto,2012.10.
  11. M.Ozawa,Y.Uchida,H.Morimoto: Prevention of Spalling for UFC using WS-PVA Fiber and Jute Fiber at High Temperature,Proceeding of the 9th International Symposium on High Performance Concrete-Design, Verification&Utilization,Vol.1,222-229, Rotorua(New-Zealand),2011.8.
  12. T.Tanibe, M.Ozawa, D.R.Lustoza,K.Kikuchi,H.Morimoto:Explosive Spalling Behavior of Restrained Concrete in the event of Fire,2nd International RILEM Workshop on Concrete Spalling due to Fire Exposure,319-326,Delft(Netherland),2011,9.
  13. M.Ozawa, D.R.Lustoza,H.Morimoto,T.Fumoto:Permeability of High Strength Concrete with different Fibers at High Temperature,2nd International RILEM Workshop on Concrete Spalling due to Fire Exposure, 281-288, Delft(Netherland),2011.9. 
  14. H.Nakamura,K.Yoshida,M.Kunieda,N.Ueda,Y.Yamamoto,M.Ozawa:Simulation about Effect on explosion spalling of Thermal stress and vapor pressure,2nd International RILEM Workshop on Concrete Spalling due to Fire Exposure,213-220,Delft(Netherland),2011.9.
  15. M.Ozawa,H.Morimoto: High-Strength Concrete Reinforced Jute Fiber and Water-Soluble PVA Fiber under High Temperature, Proceeding of Sixth International Conference on Structures in Fire,864-871,Michigan(USA),2010.6.
  16. M.Ozawa,S.Uchida,T.Kamada, and H.Morimoto:Monitoring the explosive spalling process of high-strength concrete by means of acoustic emission method, Sixth International Conference Concrete under Severe Conditions Environment & Loading(Cosec’10),1307-1314,Yucatán (México),2010.6.
  17. M.Ozawa,K.Rokugo,H.Morimoto: Relationship between Spalling Behavior and Internal Vapor Pressure of High Strength Concrete Reinforced with Organic Fibers under High Temperature,Proceedings of 2nd International workshop on Performance,Protection,and Strengthening of Structures under extreme Loading (PROTECT2009) CD-ROM,Hayama(Japan),2009.8.
  18. M.Ozawa,D.Cusson,J.Margeson,K.Izumo,H.Morimoto: Autogenous Shrinkage and Hydration Enthalpy of Cement Paste System, Proceedings of 4th International Conference on Construction Materials: Performance, Innovations and Structural Implications, (CONMAT’09), CD-ROM, 1186-1192,Nagoya(Japan),2009.8.
  19. M.Ozawa,T.Iizuka,K.Rokugo and H.Morimoto: Relationship between spalling behavior and internal vapour pressure of high-strength concrete reinforced with natural fiber under high temperature,Proceeding of 1st International Workshop on Concrete Spalling due to Fire Exposure,140-149,Leipzig(Germany),2009.9.
  20. M.Ozawa,S.Uchida,T.Kamada and H.Morimoto:Experimental Study on Restrained Drying Shrinkage Cracking of Concrete Using Acoustic Emission,ACI Spring 2009 Convention,Session on Transition from Fluid to Solid: Re-examining the Behavior of Concrete at Early Ages,San Antonio,SP,17-32,2009.
  21. M.Ozawa,M.Kasuya,H.Morimoto: Relationship between creep and chemical potential of concrete,Proceeding of International Conference on CONCREEP8,Creep,Shrinkage and Durability of Concrete and Concrete Structures,Editors of T.Tanabe.et.al,CRC Press,A Balkema book,Vol.1,73-79,Ise-shima(Japan), 2008.10.
  22. M.Ozawa,H.Morimoto:Evaluation of Expansion Energy of Expansive Concrete, Proceeding of The 5th International Conference on Concrete under Severe Conditions of Environment and Loading (CONSEC’07) Vol.2,1013-1018,Tours(France), 2007.6.
  23. M.Ozawa,H.Morimoto:Estimation Method for Thermal Expansion Coefficient of Concrete at Early Ages,Proceeding of the International RILEM Conference Volume Change of Hardening Concrete Testing and Mitigation,RILEM Publications S.a.r.l.,331-339,Copenhagen(Denmark),2006.8.
  24. M.Ozawa,H.Morimoto:A Study on the Method of Estimating Creep of Early-age Concrete, Proceeding of International Conference on CONCREEP7,Creep,Shrinkage and Durability of Concrete and Concrete Structures,Hermes Science Publishing,399-404,Nantes(France),2005.9.
  25. M.Ozawa,H.Morimoto:Evaluation of creep of high strength concrete at early ages,  Control of Cracking in Early-Age Concrete,Mihashi & Wittmann (eds.),Swets & Zeitlinger,255-264,2002. 
  26. M.Ozawa,Y. Uchida and W. Koyanagi:Study on the Process on Punching Shear Failure of RC Slabs,International Workshop on Punching Shear Capacity of RC Slabs - Proceedings, Eds. J. Silfwerbrand and G. Hassanzadeh,TRITA-BKN. Bulletin 57,277-284,Stockholm(Sweden),2000.6.

Contact

Please contact me by e-mail:

ページトップ