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Independent Administrative Institution Public Works Research Institute (PWRI)
Construction Technology Research Department
Structure Management Technology Research Team
1-6, Minamihara, Tsukuba City Ibaraki Prefecture, 305-8516, JAPAN
TEL : +81-29-879-6761@FAX : +81-29-879-6799
All Rights Reserved, Copyright(C) Public Works Research Institute. 2007


--- Mission ---
@Structure Management Technology Team conducts research and development on comprehensive management techniques for safe and durable concrete structures. We cover a broad range of concrete material and structure, such as design, construction, quality assurance, maintenance and repair.

[ Public Works Research Institute ]
PWRI
Structure Management Technology Team
Member
Hiroshi WATANABE Team Leader
Kazumasa MORIHAMA Senior Researcher
Hiroshi KATAHIRA Senior Researcher
Hirohisa KOGA Senior Researcher
Eisuke NAKAMURA Researcher
Yuki TAKEUCHI Collabrating Researcher
Hisashi AOYAMA Collabrating Researcher
Mika YAMAGUCHI Office Clerk



Publication (only English paper)
Title Author Publication Date
2006
Comparative Study on the Accelerated Chloride Ion Penetration Test for Concrete M. Hisada, H. Watanabe et al. Proceedings of the 2nd fib Congress, Vol.2, pp.466-467 2006.6
Performance Evaluation of Repair Materials Based on Shrinkage Properties E. Nakamura, R. Kitayama, H. Watanabe et al. Proceedings of the 2nd fib Congress, Vol.2, pp.524-525 2006.6
A Study on the Macro-Cell Corrosion due to the Remaining Chloride in Repaired RC Beam Y. Kitano, H. Watanabe et al. Proceedings of the 2nd fib Congress, Vol.2, pp.620-621 2006.6
Analytical Study on the Prestressed Concrete Girder Removing Deterioration Parts by Salt-attack S. Nakamura, H. Watanabe, et al. Proceedings of the 2nd fib Congress, Vol.2, pp.628-629 2006.6
Removal of Deteriorated Concrete of the Prestressed Concrete Girder Damaged by Salt-attack M. Nakamura, H. Watanabe et al. Proceedings of the 2nd fib Congress, Vol.2, pp.684-685 2006.6
Shear Resisting Mechanism in RC Beams with Fractured Stirrups E. Nakamura and H. Watanabe Proceedings of the 22nd US-Japan Bridge Engineering Workshop, pp.50-60 2006.10
General Information on Deterioration of Existing Concrete Structures and Recent Research Topics on the Maintenance Techniques in PWRI H. Watanabe and H. Koga Proceedings of JSCE-KSCE Joint Seminar on Maintenance and Management Strategy of Infrastructures in Japan and Korea, pp.19-35 2006.9
General Information on Deterioration of Existing Concrete Structures and Recent Research Topics in PWRI H. Watanabe and H. Koga Proceedings of the International Workshop on Life Cycle Management of Coastal Concrete Structures, pp.43-53 2006.11
2005
Comparative Study on Non-steady State Chloride Ion Profile in Concrete M. Hisada, R. Kitayama, H. Watanabe and H. Kawano Construction Materials, pp.246 2005.8
A Study on Errors in the Measurement of Chloride Ion Concentrations in Hardened Concrete H. Koga, S. Matsuura, H. Watanabe and H. Kawano Construction Materials, pp.247 2005.8
2004
Effect of Carbonation on the Distribution of Chloride Ions in Concrete Structures H. Koga, H. Kawano and H. Watanabe Concrete Under Severe Conditions:Environment & Loading, Vol.1, pp.345-352, 2004.6
2003
Stduy on performance of concrete using Ecocement S. Tanaka, T. Nakamura, S. Meiarashi and H. Kawano Proceedings of Sixth CANMET/ACI International Conference on Durability of Concrete, SP-212, pp.1073-1092 2003.6
A Fundamental Study on the Effect of Desalination Applied to a Pre-stressed Concrete Beam M, Hisada, H. Kawano, H. Watanabe, Y. Kasai and S, Tanaka Proceedings of the 10th Int. Confefrence and Exhibition on Structural Faults and Repair 2003.7
New Calibration Method of Rebound Hammer H. Koga and H. Kawano Proceedings of the 10th Int. Confefrence and Exhibition on Structural Faults and Repair 2003.7
2002
Effect of Leaching Conditions and Curing Time on the Leaching of Heavy Metals in Fly Ash Cement Mortars S. Nagataki, Q. YU and M. Hisada Advances in Cement Research, Vol. 14, No. 2, pp.71-83 2002.5
Improving Durability by Using HSC/HPC for Highway Bridges in Coastal Areas Y. Tanaka, H. Kawano, H. Watanabe and T. Nakajo Proc. of the 6th Intl. Symp. On Utilization of High Strength / High Performance Concrete, Vol.2, pp.1633-1643 2002.6
A Study on the Difference of Chloride Ion Diffusivity and Degradation of Cement Mortar due to NaCl and CaCl2 Ingress M. Hisada, K. Sakai and S. Nagataki Third International RILEM Workshop on Testing and Modeling Chloride Ingress into Concrete 2002.9
Status and Trend of NDT on Reinforced Concrete Structure in Japan K. Morihama et al. The 6th Far-East Cnference on Non-Destructive Testing (FENDT2002), pp.99-104 2002.10
Chloride Permeability of High-strength Concrete Y. Tanaka, M. Fujita, H. Cheong, H. Watanabe and H. Kawano Proceedings of the first fib congress, Vol.2, Session8, pp.35-36 2002.10
A Study on the Ion Diffusivity and Degradation of Cement Mortar due to Chemical Attack M. Hisada, T. Saeki and S. Nagataki Proceedings of the first fib congress, Vol.2, Session8, pp.49-50 2002.10
Pumpability of High Strength Concrete H. Taniguchi, M. Fujita, S. Nakamura, M. Tanaka and H. Watanabe Proceedings of the first fib congress, Vol.2, Session9, pp.29-30 2002.10
Effect of Stress Rate on Tensile Strength on High-strength Concrete H. Watanabe, T. Nagai, M. Suzuki and S. Takemoto Proceedings of the first fib congress, Vol.2, Session9, pp.73-74 2002.10
Study on the Early Age Cracking of High-strength Concrete S. Sato, M. Imai, M. Suzuki, Y. Nakata and H. Watanabe Proceedings of the first fib congress, Vol.2, Session9, pp.81-82 2002.10
Improvement on the Quality of Recycled Aggregate Concrete Containing Super Fine Mineral Admixtures D. J. Moon, H. Y. Moon, S. Nagataki, M. Hisada and T. Saeki Proceedings of the first fib congress, Vol.2, Session10, pp.29-30 2002.10
The state of using by-products in concrete in Japan and outline of JIS/TR on "recycled concrete using recycle aggregate" H. Kawano Proceedings of the first fib congress, Vol.2, Session10, keynote 2002.10
Life cycle cost of prestressed concrete bridges -examples in severe chloride environment- H. Kawano Proceedings of 18th US-Japan Bridge Workshop, pp.241-247 2002.10
2001
Chloride-induced deterioration and its influence on load carrying capacity of post-tensioned concrete bridges Y. Tanaka, H. Kawano, H. Watanabe and T. Kimura Third international conference, concrete under severe conditions - environment and loading, CONSEC2001, pp.495-502 2001.6
Nationwide Survey on Soundness of Concrete Structures H. Kawano, H. Watanabe and H. Koga 2001 Second International Conference on Engineering Materials, Vol.1, pp.93-100 2001.8
Study on required cover depth of concrete highway bridges in coastal environment Y. Tanaka, H. Kawano, H. Watanabe and T. Nakajo 17th U.S. - Japan Bridge Engineering Workshop, pp.566-567 2001.11
Title Period
Inspection and Quality Control Method of Concrete Structures Using Mini-destructive and
@Non-destructive Tests
2005-2007
Desalination for Concrete Structures Deteriorated by Salt Attack 2005-2007
Repair of Concrete Structures Deteriorated by Alkali Silika Reaction 2007-2009
Partial Factor Design for Concrete Bridges 2006-2008
Inspection Method of Grout Packing Condition on PC Bridges 2007-2009
Evaluation Technique for Durability of Irregular Fine Aggregate 2006-2009
Maintenance Strategy for Concrete Structures with Long Term Deterioration 2007