NAWA Toyoharu

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Name
NAWA Toyoharu
Affiliation
Hokkaido University
Section
Faculty of Engineering, Division of Solid Waste,Resources and Geoenvironmental Engineering
Job title
Professor

Research Areas

 
 

Academic & Professional Experience

 
1997
 - 
2004
 Associate Professor
 
2004
 - 
2005
 Professor
 
2005
 - 
2010
 Professor
 
2010
   
 
- Professor
 

Published Papers

 
OGAWA Hideo, NAWA Toyoharu
Journal of Advanced Concrete Technology   10(12) 395-410   Dec 2012   [Refereed]
GOTO SUGURU, NAWA TOYOHARU
日本レオロジー学会誌   40(4) 157-164   Sep 2012
KURUMISAWA Kiyofumi, NAWA Toyoharu, OWADA Hitoshi
CEMENT & CONCRETE COMPOSITES   34(3) 408-418   Mar 2012   [Refereed]
Luan, Yao; Ishida, Tetsuya; Nawa, Toyoharu; Sagawa, Takahiro
JOURNAL OF ADVANCED CONCRETE TECHNOLOGY   10(1) 1-13   Jan 2012   [Refereed]
ISHIDA Tetsuya, LUAN Yao, SAGAWA Takahiro,NAWA Toyoharu
CEMENT AND CONCRETE RESEARCH   41(12) 1357-1367   Dec 2011   [Refereed]
NARMLUK Mongkhon, NAWA Toyoharu
CEMENT AND CONCRETE RESEARCH   41(6) 579-589   Jun 2011   [Refereed]
Prediction of chloride diffusion coefficient of concrete under flexural cyclic load
Van Mien, Tran; Stitmannaithum, Boonchai; Nawa, Toyoharu
COMPUTERS AND CONCRETE   8(3) 343-355   Jun 2011   [Refereed]
Y. Elakneswaran,A. Iwasa, T. NAWA, et al.
CEMENT AND CONCRETE RESEARCH   40(12) 1756-1765   Dec 2010   [Refereed]
Simulation of chloride penetration into concrete structures subjected to both cyclic flexural loads and tidal effects
Van Mien, Tran; Stitmannaithum, Boonchai; Nawa, Toyoharu
COMPUTERS AND CONCRETE   6(5) 421-435   Oct 2009   [Refereed]
Journal of structural and construction engineering. Transactions of AIJ   74(642) 1405-1411   Aug 2009
Elakneswaran, Y.; Nawa, T.; Kurumisawa, K
CEMENT AND CONCRETE RESEARCH   39(4) 340-344   Apr 2009   [Refereed]
Termkhajornkit, Pipat; Nawa, Toyoharu; Yamashiro, Yoichi; Toshiki, Saito
CEMENT & CONCRETE COMPOSITES   31(3) 195-203   Mar 2009   [Refereed]
Elakneswaran, Y.; Nawa, T.; Kurumisawa, K.
CEMENT & CONCRETE COMPOSITES   31(1) 72-76   Jan 2009   [Refereed]
Elakneswaran, Y.; Nawa, T.; Kurumisawa, K.
MATERIALS AND STRUCTURES   42(1) 83-93   Jan 2009   [Refereed]
SAENGSOY Warangkana, NAWA Toyoharu, TERMKHAJORNKIT Pipat
Journal of structural and construction engineering. Transactions of AIJ   73(631) 1433-1441   Sep 2008
This study is aimed to elucidate the influence of ambient relative humidity on the compressive strength of fly ash cement paste. The ambient relative humidity has an influence on both the internal relative humidity and the hydration reaction, and ...
Termkhajornkit, Pipat; Nawa, Toyoharu; Kurumisawa, Kiyofumi
CEMENT & CONCRETE COMPOSITES   28(9) 781-789   Oct 2006   [Refereed]
Tertnkhajornkit, P; Nawa, T; Nakai, M; Saito, T
CEMENT AND CONCRETE RESEARCH   35(3) 473-482   Mar 2005   [Refereed]
NISHIDA Akira, SAITO Takeshi, NAWA Toyoharu, YAMAZAKI Nobuyuki
Journal of structural and construction engineering. Transactions of AIJ   0(585) 39-44   Nov 2004
Segregation of high-strength concrete of 48-54N/mm^2 design strength in fresh concrete was experimentally investigated. As a result of this test, a yield value of fresh concrete was able to be obtained by a slump flow value and plastic viscosity c...
Termkhajornkit, P; Nawa, T
CEMENT AND CONCRETE RESEARCH   34(6) 1017-1024   Jun 2004   [Refereed]
IZUMO Kenji, NAWA Toyoharu
Doboku Gakkai Ronbunshu   (739) 221-236   Aug 2003
HAYASHI Toru, NAWA Toyoharu, SAITO Toshiki
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2003(0) 103-104   Jul 2003
NAWA TOYOHARU
672(0) 48-56   Feb 2003
NAWA Toyoharu, IZUMO Kenji, YANO Megumi, YUASA Noboru
55(0) 218-225   Feb 2002
NARITA Dan, NAWA Toyoharu, YUASA Noboru, OHNUMA Hiroshi
55(0) 500-506   Feb 2002
IZUMO Kenji, YANO Megumi, NAWA Toyoharu, OHNUMA Hiroshi
55(0) 176-181   Feb 2002
OGIHARA Junpei, NAKAI Masashi, NAWA Toyoharu
Doboku Gakkai Ronbunshu   (690) 65-82   Nov 2001
NAWA Toyoharu, UEMATSU Chizuko, OHNUMA Hiroshi
Journal of structural and construction engineering. Transactions of AIJ   0(546) 1-7   Aug 2001
The effects of chemical structures of graft copolymer on cement-dispersing performance were investigated in order to elucidate the fluidizing mechanism of polycarboxylate-based superplasticizer containing polyethylene oxide graft chains. Graft cop...
HORITA Tomoaki, NAWA Toyoharu
Journal of structural and construction engineering. Transactions of AIJ   0(542) 9-15   Apr 2001
The autogenous shrinkage must be measured immediately after casting in mould because that the concrete is the most sensitive to internal stresses. We proposed a measurement method by using the thin strain gauge covered with water-proof silicone se...
TANAKA Kyoji, JEON Jin-hwan, NAWA Toyoharu, HASHIDA Hiroshi
Journal of structural and construction engineering. Transactions of AIJ   0(538) 15-19   Dec 2000
The effect of fatigue by flexure on pore structure and carbonation of concrete and mortar were studied. Pore volume, particularly in the range of capillary pore, increased in fatigued specimens and thereby deeper carbonation was observed. To discu...
NAWA Toyoharu, OHNUMA Hiroshi, OGIHARA Junpei, SAITO Toshiki
53(0) 759-765   Dec 1999
HORITA Tomoaki, NAWA Toyoharu, ONUMA Hiroshi, MORIYOSI Akihiro
53(0) 711-716   Dec 1999
OGIHARA Junpei, NAWA Toyoharu, NAKAI Masashi, SAITO Toshiki
53(0) 397-402   Dec 1999
OHNUMA Hiroshi, NAWA Toyoharu, HIRONAGA Michihiko, OZAWA Masashi
52(0) 650-655   Dec 1998
JEON Jin Hwan, LI Zai Chun, TANAKA Kyouji, NAWA Toyoharu, HASHIDA Hiroshi
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   1998(0) 407-408   Jul 1998

Misc

 
百瀬晴基, 閑田徹志, 正長眞理, 名和豊春
セメント・コンクリート   (790) 35-40   Dec 2012
KUROIWA SHUSUKE, NAMIKI SATORU, TSUJIYA KAORU, MASANAGA MARI, NAWA TOYOHARU
大成建設技術センター報(CD-ROM)   (45) ROMBUNNO.19   Dec 2012
百瀬晴基, 閑田徹志, 正長眞理, 名和豊春
日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)   2012 ROMBUNNO.1351   Jul 2012
胡桃澤清文, 名和豊春
日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)   2012 ROMBUNNO.1378   Jul 2012
西田朗, 辻埜真人, 片山行雄, 正長眞理, 名和豊春
日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)   2012 ROMBUNNO.1352   Jul 2012
黒岩秀介, 吉田泰, 辻谷薫, 陣内浩, 山本佳城, 並木哲, 正長眞理, 名和豊春
日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)   2012 ROMBUNNO.1350   Jul 2012
辻埜真人, 西田朗, 片山行雄, 正長眞理, 名和豊春
日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)   2012 ROMBUNNO.1353   Jul 2012
胡桃澤清文, 名和豊春
コンクリート工学年次論文集(CD-ROM)   34 ROMBUNNO.1081   Jun 2012
NAWA Toyoharu
0(779) 38-43   Jan 2012
NAWA Toyoharu
Journal of the Society of Inorganic Materials,Japan   18(355) 386-391   Nov 2011
SAGAWA Takahiro, LUAN Yao
Cement & concrete   0(776) 7-12   Oct 2011
NAWA T., ISHIDA T., IRIE M., UMEMURA Y., KURASHIGE I.
Concrete Journal   49(10) 3-8   Oct 2011
The JSCE 333 committee has been established and started its activities since September 2004 aiming to clarify the relationship among various mineral/chemical admixtures, concrete quality and its performance. This article briefly reports its resear...
Annual report, Kajima Technical Research Institute, Kajima Corporation   59(0) 73-80   Sep 2011
MASANAGA Mari, KANDA Tetsushi, KUROIWA kuroiwa, NISHIDA Akira, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2011(0) 453-454   Jul 2011
KUROIWA Shusuke, NISHIDA Akira, KANDA Tetsushi, MASANAGA Mari, NAWA Toyoharu, TSUJIYA Kaoru
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2011(0) 455-456   Jul 2011
MOMOSE Haruki, KANDA Tetsushi, KUROIWA Shusuke, NISHIDA Akira, MASANAGA Mari, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2011(0) 457-458   Jul 2011
NISHIDA Akira, KANDA Tetsushi, KUROIWA Shusuke, MASANAGA Mari, NAWA Toyoharu, KATAYAMA Yukio
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2011(0) 459-460   Jul 2011
NAWA Toyoharu, KUROIWA Shusuke, NISHIDA Akira, KANDA Tetsushi, MASANAGA Mari
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2011(0) 461-462   Jul 2011
SAGAWA Takahiro, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2011(0) 447-448   Jul 2011
HASHIZUME Susumu, NISHI Hironobu, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2010(0) 949-950   Jul 2010
NISHI Hironobu, HASHIZUME Susumu, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2010(0) 951-952   Jul 2010
TAKATA Yoshiaki, NISHI Hironobu, HASHIZUME Susumu, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2010(0) 961-962   Jul 2010
KURUMISAWA Kiyofumi, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2010(0) 1273-1274   Jul 2010
Journal of structural and construction engineering. Transactions of AIJ   75(652) 1029-1037   Jun 2010
Journal of structural and construction engineering. Transactions of AIJ   75(648) 231-240   Feb 2010
JEON Jin-Hwan, MOMOSE Haruki, KANDA Tetsuji, KURUMISAWA Kiyofumi, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2009(0) 783-784   Jul 2009
NAWA Toyoharu, NISHI Hironobu, HIGAKI Makoto, OHTA Tatsumi, NISHIDA Akira, YAMAZAKI Nobuyuki
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2009(0) 529-530   Jul 2009
OHTA Hiromi, NISHI Hironobu, KATAYAMA Yukio, HIGAKI Makoto, NISHIDA Akira, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2009(0) 531-532   Jul 2009
HIGAKI Makoto, NISHI Hironobu, KATAYAMA Yukio, OHTA Tatsumi, NISHIDA Akira, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2009(0) 533-534   Jul 2009
KATAYAMA Yukio, NISHI Hironobu, HIGAKI Makoto, OHTA Tatsumi, NISHIDA Akira, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2009(0) 535-536   Jul 2009
NISHIDA Akira, NISHI Hironobu, KATAYAMA Yukio, TODA Kazutoshi, YAMAZAKI Nobuyuki, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2009(0) 537-538   Jul 2009
NISHI Hironobu, HASHIZUME Susumu, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2009(0) 551-552   Jul 2009
HASHIZUME Susumu, NISHI Hironobu, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2009(0) 553-554   Jul 2009
Journal of structural and construction engineering. Transactions of AIJ   74(639) 765-773   May 2009
NAWA T.
Concrete Journal   47(4) 11-20   Apr 2009
This paper describes the prospects of control on shrinkage cracking of concrete based on the durability design. The influence of shrinkage cracking on concrete durability and the influencing factors on crazing are reviewed from the previous studie...
HIRATA Tsuyoshi, NAWA Toyoharu
Journal of structural and construction engineering. Transactions of AIJ   74(636) 185-191   Feb 2009
This paper describes the air entraining performance of polycarboxylate type water reducer. From the results obtained in this study, it is concluded that Methoxypoly (n=10) ethyleneglycol methacrylate - methacrylic acid copolymer (PC-10) can be pur...
HIRATA Tsuyoshi, NAWA Toyoharu, YUASA Tsutomu
KOBUNSHI RONBUNSHU   65(11) 659-669   Nov 2008
Suzuki Miki, Naganuma Hiroshi, Ogawa Ikue, Kuromaru Ryota, Nawa Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2008(0) 251-252   Jul 2008
SAGAWA Takahiro, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2008(0) 1097-1098   Jul 2008
HIRATA Tsuyoshi, NAWA Toyoharu
Journal of structural and construction engineering. Transactions of AIJ   73(627) 685-691   May 2008
The gradual release type-slump retentive polymer, which is the crosslinking water soluble polymer (C-PC) produced by crosslinking the polycarboxylate type water reducing polymer with polyethylene glycol pendant (PC) at alkaline hydrolytic points, ...
Proceedings of the Japan Concrete Institute   30(1) 123-128   2008
Proceedings of the Japan Concrete Institute   30(1) 591-596   2008
Proceedings of the Japan Concrete Institute   30(1) 885-890   2008
Proceedings of the Japan Concrete Institute   30(1) 903-908   2008
NISHIDA Akira, NAWA Toyoharu, YAMAZAKI Nobuyuki
Journal of structural and construction engineering. Transactions of AIJ   0(622) 33-39   Dec 2007
This study is for assessment of elastic modulus of elasticity on high-strength concrete with material segregation in a structural member. It identified the fact below. The variance of elastic modulus of elasticity in vertical direction of the memb...
SAGAWA Takahiro, NAWA Toyoharu
Concrete research and technology, Japan Concrete Institute   18(3) 23-35   Sep 2007
NIHSIDA Akira, YAMAZAKI Nobuyuki, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2007(0) 81-82   Jul 2007
KINOSHITA Mitsuo, TANIMURA Makoto, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2007(0) 279-280   Jul 2007
TANIMURA Makoto, KINOSHITA Mitsuo, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2007(0) 281-282   Jul 2007
NISHIDA Akira, SAITO Takeshi, NAWA Toyoharu, YAMAZAKI Nobuyuki
Journal of structural and construction engineering. Transactions of AIJ   0(613) 15-22   Mar 2007
In this study, we investigated the influence of material segregations on the behaviors of high-strength concrete. The test results indicate that the mechanical properties of structural concrete more easily influenced by the material segregation. M...
Proceedings of the Japan Concrete Institute   29(1) 63-68   2007
Proceedings of the Japan Concrete Institute   29(1) 93-98   2007
Proceedings of the Japan Concrete Institute   29(1) 195-200   2007
Proceedings of the Japan Concrete Institute   29(1) 291-296   2007
Proceedings of the Japan Concrete Institute   29(1) 1173-1178   2007
Proceedings of the Japan Concrete Institute   29(1) 1197-1202   2007
Hideo OGAWA, Toyoharu NAWA, Masayoshi YAMAMOTO
Doboku Gakkai Ronbunshuu E   63(3) 503-517   2007
Assessment of Elastic modulus Elasticity on High-strength Concrete with Material Segregation
Journal of Structural and Construction Ensinieering (Transactions of AIJ)   (622) 33-39   2007
HORITA Tomoaki, NAWA Toyoharu
Journal of structural and construction engineering. Transactions of AIJ   0(610) 1-6   Dec 2006
The objective of this study is to confirm the reduction effect of fly ash on autgenous shrinkage of high performance concrete. In this paper, we deal with the influence of admixtures on autogenous shrinkage of massive model specimens which were ma...
SAGAWA Takahiro, NAWA Toyoharu
Concrete research and technology, Japan Concrete Institute   17(3) 1-11   Sep 2006
SHIMOKAWARA Mai, MIYASHIRO Toshio, OHGA Kotaro, NAWA Toyoharu, SAKAMOTO Yasuhide, KOMAI Takeshi, YAMAGUCHI Tsutomu
0(15) 95-96   Aug 2006
TAMURA Yukiyasu, HONIDEN Atsuo, OHGA Koutarou, NAWA Toyoharu
0(15) 105-106   Aug 2006
YAMASHIRO Yoichi, SAITO Toshiki, NAWA Toyoharu, KURUMISAWA Kiyofumi
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2006(0) 271-272   Jul 2006
SAGAWA Takahiro, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2006(0) 273-274   Jul 2006
KURUMISAWA Kiyofumi, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2006(0) 405-406   Jul 2006
Nawa Toyoharu, Suzuki Miki, Naganuma Hiroshi
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2006(0) 547-548   Jul 2006
UJIHIRA Masuyuki, OHARA Kenji, ITO Fumito, DAUREN Akhmetov, NAWA Toyoharu
Journal of the Japan Society of Engineering Geology   47(2) 88-97   Jun 2006
Steel wire cable sensor (SWCS) stretched along a rock slope is effective to detect the sign of a big scale rock fall and slope failure, because the sensor could detect the collision vibrations of rock particles and blocks that appear preceded the ...
KURUMISAWA Kiyofumi, TERMKHAJORNKIT Pipat, NAWA Toyoharu
Journal of structural and construction engineering. Transactions of AIJ   0(603) 1-7   May 2006
Recently, the amount of the exhaust of fly ash increases by increasing thermal power plant. Using it as a concrete mixture material is an effective method for decreasing waste. However, the influence on the hydration of the cement and reaction rat...
KURUMISAWA Kiyofumi, TERMKHAJORNKIT Pipat, NAWA Toyoharu
Journal of structural and construction engineering. Transactions of AIJ   0(603) 9-15   May 2006
The elastic properties of concrete depend on the characteristic of cement matrix and coarse aggregates. The elastic characteristic of cement matrix depends on the cement paste when the properties of the fine aggregate are constant. That is, clarif...
Proceedings of the Japan Concrete Institute   28(1) 143-148   2006
Proceedings of the Japan Concrete Institute   28(1) 209-214   2006
PIPAT T.
Proceedings of the Japan Concrete Institute   28(1) 281-286   2006
Proceedings of the Japan Concrete Institute   28(1) 1871-1876   2006
KURUMISAWA Kiyofumi, NAWA Toyoharu
Journal of structural and construction engineering. Transactions of AIJ   0(595) 9-15   Sep 2005
The durability of concrete is greatly influenced by the physical properties of the hardened cement paste. The physical properties of hardened cement paste are dependent on the degree of hydration and porosity of hardened cement paste. Therefore, i...
TAMAI Takayuki, KASAMI Hideo, ABE Michihiko, HASEGAWA Takuya, NAWA Toyoharu, OSHIDA Fumio
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2005(0) 1195-1196   Jul 2005
ISHIKAWA Yoshitaka, MASUDA Yoshihiro, OONO Yoshiteru, NAWA Toshiharu, KOYAMA Tomoyuki, FUNAMOTO Kenji
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2005(0) 473-474   Jul 2005
KURUMISAWA Kiyofumi, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2005(0) 425-426   Jul 2005
PIPAT T.
Proceedings of the Japan Concrete Institute   27(1) 169-174   2005
NAWA Toyoharu, SUZUKI Miki
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2004(0) 151-152   Jul 2004
NASU Toyoji, KIMURA Kouji, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2004(0) 283-284   Jul 2004
SAITO Toshiki, NAWA Toyoharu, HAYASHI Toru
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2003(0) 105-106   Jul 2003
NAWA Toyoharu, HASHIDA Hiroshi
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2003(0) 275-276   Jul 2003
HASHIDA Hiroshi, NAWA Toyoharu
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2003(0) 277-278   Jul 2003
HORITA Tomoaki, NAWA Toyoharu
Journal of structural and construction engineering. Transactions of AIJ   0(565) 1-7   Mar 2003
In this study, we measured combined water of hydration, relative humidity and autogenous shrinkage of cement pastes which were made from various water-cement ratio in order to make it clear the mechanism of autogenous shrinkage of cementitious mat...
NAWA T.
40(9) 11-16   Sep 2002
IZUMO Kenji, TAKEBE Hiroaki, NAWA Toyoharu, OHNUMA Hiroshi
55(0) 211-217   Feb 2002
TANAKA Kyoji, JEON Jin-hwan, NAWA Toyoharu, HASHIDA Hiroshi
Journal of structural and construction engineering. Transactions of AIJ   0(548) 9-14   Oct 2001
Mortar specimens cured at various conditions were first subjected to bending repeated loads, and it was made clear that insufficient cure reduced fatigue resistance of them. Next, fatigue tests that the stress levels are lower than the ones of fat...
NAWA Toyoharu, OHNUMA Hiroshi
Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construction   2001(0) 153-154   Jul 2001

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 2004 - 2007    Investigator(s): Masami TSUNEKAWA
Industrial systems and daily life in Japan are shifting to become recycling-based to reduce energy and resource consumption. To establish a society based on recycling, urban resource recovery centers (urban mines) are important as places to reduce...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 2004 - 2006    Investigator(s): Tamon UEDA
The following conclusions can be drawn.(1)A model for evaluating life cycle cost of pavements considering winter road traffic situation was proposed. An algorithm for the model which was developed by applying the sensitivity analysis of the probit...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2004 - 2006    Investigator(s): Toyoharu NAWA
Prevent concrete from cracking is actually one of the key issues for the design of concrete. The purpose of this study is to develop control of shrinkage crack due to combination of inert powder and chemical admixture. Most important results are s...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 2003 - 2005    Investigator(s): Shigeyuki OKADA
This research project has conducted a feasibility study on the net web monitoring system for seismic security including structural capacity of building and indoor space safety for individuals. It is a goal of the high priority of earthquake protec...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 2002 - 2004    Investigator(s): Seiichi KAGAYA
The influences from dispersion of antifireezing admixture, toward function of road transport and toward deterioration of road facilities, are analyzed in this study. This study aimes for the enhancement of systems of operation and maintenance for ...