論文

発表年月 タイトル/共同研究者 掲載誌 巻・号・頁 学術機関等
2025/05 Green Value Stream Mapping for realizing sustainability in urban road construction using the DMAIC approach
M.T. Chekol, M. Henry
Proc. of International Association for Bridge and Structural Engineering (IABSE) Symposium 2025 457から
2025/05 Revising weights for bridge maintenance prioritization using stakeholder input
K. Zangpo, M. Henry
Proc. of International Association for Bridge and Structural Engineering (IABSE) Symposium 2025 434から
2024/10 Evaluation of Project Performance and Sustainability in the Nepal Road Infrastructure Sector
Chhabi Lal Paudel, Michael Henry
Lecture Notes in Mechanical Engineering: 17th WCEAM Proceedings Sustainable Management of Engineered Assets in a Post-Covid 19 World: Industry 4.0, Digital Transformation, Society 5.0 and Beyond 357から 368ページまで Springer Nature Switzerland
2024/10 Assessing the Transferability of the Highway Safety Manual Crash Prediction Model in the Context of the Mountainous Rural Two-Lane Highway of Nepal
Nitesh Acharya, Michael Henry
Lecture Notes in Mechanical Engineering: 17th WCEAM Proceedings Sustainable Management of Engineered Assets in a Post-Covid 19 World: Industry 4.0, Digital Transformation, Society 5.0 and Beyond 331から 342ページまで Springer Nature Switzerland
2024/10 Analysis of Interrelated Distress Types Using Naive Bayes Method for Provincial Highway Network in Pakistan
Selorm Dartey, Azam Amir, Michael Henry
Lecture Notes in Mechanical Engineering: 17th WCEAM Proceedings Sustainable Management of Engineered Assets in a Post-Covid 19 World: Industry 4.0, Digital Transformation, Society 5.0 and Beyond 309から 320ページまで Springer Nature Switzerland
2024/08 Integrating the Sustainable Development Goals into Corporate Governance: A Cross-Sectoral Analysis of Japanese Companies
Ludmila Soares Carneiro, Michael Henry
Sustainability 16巻 15号 6636から 6636ページまで MDPI AG
2024/08 Factors affecting road construction project performance in Addis Ababa, Ethiopia
Mekonnen Tibebu Chekol, Michael Henry
Proceedings of the 10th International Conference on Construction Engineering and Project Management 1104から 1111ページまで
2024/08 Evaluation of the Effect of Project Delay on Future Benefits in the Nepal Highway Infrastructure Construction Sector
Chhabi Lal Paudel, Michael Henry
Proceedings of the 10th International Conference on Construction Engineering and Project Management 137から 144ページまで
2024/06 Exploring the Role of Human Behavior in Road Crash Occurrence through Analysis of Crash Variability in Highly Similar Road Environments
Nitesh Acharya, Michael Henry
International Conference on Transportation and Development 2024 249から 260ページまで American Society of Civil Engineers
2024/06 The effect of conceptualization on bridge maintenance prioritization
K. Zangpo, A. Amir, M. Henry
Bridge Maintenance, Safety, Management, Digitalization and Sustainability (1st ed.) 1122から 1129ページまで
2024/06 Regional impacts of natural disasters on road bridges in the Philippines
M.J. Adarne, M. Henry
Bridge Maintenance, Safety, Management, Digitalization and Sustainability (1st ed.) 3027から 3034ページまで
2024/06 Modeling the deterioration of road bridges at the provincial level in Lao PDR
H. Silimanotham, A. Amir, M. Henry
Bridge Maintenance, Safety, Management, Digitalization and Sustainability (1st ed.) 518から 524ページまで
2024/06 Assessing the Relationship between Speed Behavior and Road Features of a Semi-Urban Mountainous Road using Multivariate Regression
Nitesh Acharya, Michael Henry
Journal of the Eastern Asia Society for Transportation Studies 15巻 2347から 2366ページまで
2024/06 高流動コンクリートを用いた施工のライフサイクルアセスメントおよび生産性評価
ヘンリー マイケル, 鈴木 将充, 早川 健司, 加藤 佳孝
コンクリート工学年次論文集 46巻 1号 1633から 1638ページまで
2024/05 Characterization of missingness and data-driven imputation for incomplete pavement condition data
Angela Odera, Michael Henry, Azam Amir
Intelligence, Informatics and Infrastructure 5巻 1号 57から 71ページまで
2024/05 Comparison of road crash severity prediction using tree-based machine learning algorithms with varying data treatments
Nitesh Acharya, Michael Henry
Intelligence, Informatics and Infrastructure 5巻 1号 15から 24ページまで
2024/02 Statistical Analysis of Asphalt Pavement Distress Occurrence for Project-Level Maintenance Management of Provincial Highways
Azam Amir, Michael Henry
RILEM Bookseries 1025から 1038ページまで Springer Nature Switzerland
2024/02 Comparison of Decision Makers’ Perspectives and Data-Driven Factors Affecting Pavement Condition in Khyber Pakhtunkhwa, Pakistan
Selorm Dartey, Azam Amir, Michael Henry
RILEM Bookseries 1064から 1075ページまで Springer Nature Switzerland
2024/02 Cost Implications of Natural Disasters on Road and Bridges Infrastructure in the Philippines
Minie Joy Adarne, Michael Henry
RILEM Bookseries 961から 970ページまで Springer Nature Switzerland
2024/02 Performance Evaluation of Construction Companies in the Road Infrastructure Sector of Nepal
C.L. Paudel, M. Henry
Proceedings of the 18th South East Asian Technical University Consortium 61から 66ページまで
2024/02 Association Between Bridge Characteristics and Maintenance Prioritization for Bailey Bridges in Bhutan
K. Zangpo, M. Henry
Proceedings of the 18th South East Asian Technical University Consortium 67から 71ページまで
2024/02 Machine Learning for Network-Level Pavement Deterioration Prediction: A Comparative Assessment of ANN and KNN with Limited Data
A. Amir, M. Henry
Proceedings of the 18th South East Asian Technical University Consortium 72から 76ページまで
2024/02 Exploratory Analysis of the Factors Affecting Pavement Condition in Kenya
A. Odera, A. Amir, M. Henry
Proceedings of the 18th South East Asian Technical University Consortium 108から 113ページまで
2024/02 Causes of Non-Value Adding Activities in Urban Road Infrastructure Projects in Addis Ababa, Ethiopia
M.T. Chekol, M. Henry
Proceedings of the 18th South East Asian Technical University Consortium 102から 107ページまで
2024/02 Relationship Between Estimated Maintenance Cost and Cost Increase Due to Delay of Road Maintenance in Addis Ababa City, Ethiopia
S.N. Teremo, M. Henry
Proceedings of the 18th South East Asian Technical University Consortium 97から 101ページまで
2023/10 Effect of Contracting Strategy and Institutional Arrangement on Implementation Performance of Bridge Construction Works in Nepal
C.L. Paudel, M. Henry
SEATUC Journal of Science and Engineering 4巻 1号 66から 75ページまで
2023/07 Reverse Engineering of Maintenance Budget Allocation Using Decision Tree Analysis for Data-Driven Highway Network Management
Azam Amir, Michael Henry
Sustainability 15巻 13号 10467から 10467ページまで MDPI AG
2023/06 Exploratory analysis of the impact of natural hazards on road infrastructure in the Philippines
Minie Adarne, Azam Amir, Michael Henry
Life-Cycle of Structures and Infrastructure Systems - Proceedings of the Eighth International Symposium on Life-Cycle Civil Engineering 2473から 2480ページまで
2023/06 Bridge maintenance prioritization by using multi-criteria decision analysis
Hatthaphone Silimanotham, Michael Henry
Life-Cycle of Structures and Infrastructure Systems - Proceedings of the Eighth International Symposium on Life-Cycle Civil Engineering 2770から 2777ページまで
2023/06 Application of cluster analysis and Markov chain model for network-level highway infrastructure management
Azam Amir, Michael Henry
Life-Cycle of Structures and Infrastructure Systems - Proceedings of the Eighth International Symposium on Life-Cycle Civil Engineering 592から 599ページまで
2023/02 Effect of Contracting Strategy and Institutional Arrangements on Delay and Cost Overrun of Bridge Construction Works in Nepal
Chhabi Lal Paudel, Michael Henry
Proceedings of the 17th South East Asian Technical University Consortium 201から 206ページまで
2023/02 Role of Financing Institutions in the Time and Cost Performance Management of Road Infrastructure Construction in Nepal
Chhabi Lal Paudel, Michael Henry
Proceedings of the 2nd International Conference on Integrated Transport for Sustainable Mobility 35から 46ページまで
2022/04 Implementation of a multicriteria analytical framework for the sustainability evaluation and comparison of concrete materials considering methodological uncertainties
Joel Opon, Michael Henry
Journal of Cleaner Production 344巻 131057から 131057ページまで Elsevier BV
2022/03 The role of conceptualization in the evaluation of sustainable concrete
Michael Henry, Joel Opon
Acta Polytechnica CTU Proceedings 33巻 219から 225ページまで Czech Technical University in Prague - Central Library
2022/03 Quantifying uncertainties in the sustainability evaluation of concrete materials considering regional characteristics in Japan
Nicole Alexis Kwan Vios, Michael Ward Henry, Joel Galupo Opon
Acta Polytechnica CTU Proceedings 33巻 631から 637ページまで Czech Technical University in Prague - Central Library
2022/01 Factors Affecting The Deterioration Of Bituminous Pavements In Khyber Pakhtunkhwa Province, Pakistan
Azam Amir, Michael Henry
Lecture Notes in Civil Engineering: Proceedings of the 17th East Asia-Pacific Conference on Structural Engineering & Construction 1528から 1538ページまで
2022/01 The relationship between land use land cover and road blockage events in Bhutan
Dhan Raj Chhetri, Michael Henry
Proceedings of the South East Asian Technical University Consortium (SEATUC) Symposium 2022 40から 45ページまで
2022/01 Assessing the sustainability characteristics of modified asphalt concrete
Grace Muna, Michael Henry
Lecture Notes in Civil Engineering: Proceedings of the 17th East Asia-Pacific Conference on Structural Engineering & Construction 1515から 1527ページまで
2022/01 Road Development Risks and Challenges in the Philippines
Kenneth Edward Torella Fernando, Michael Henry
Lecture Notes in Civil Engineering: Proceedings of the 17th East Asia-Pacific Conference on Structural Engineering & Construction 326から 339ページまで
2022/01 Analysis of the Clearance Time of Roadblock Events Caused by Geohazards in Bhutan
Dhan Raj Chhetri, Michael Henry
Lecture Notes in Civil Engineering: Proceedings of the 17th East Asia-Pacific Conference on Structural Engineering & Construction 403から 415ページまで
2022/01 Patterns in the Social Perspectives of Concrete Industry Stakeholders and Their Impact on the Sustainability Evaluation of Concrete
Ludmila Soares Carneiro, Michael Henry
Lecture Notes in Civil Engineering: Proceedings of the 17th East Asia-Pacific Conference on Structural Engineering & Construction 1103から 1115ページまで
2022/01 Exploring patterns in municipal bridge management issues and their relationship with municipal conditions in Hokkaido, Japan
Michael Henry
Lecture Notes in Civil Engineering: Proceedings of the 17th East Asia-Pacific Conference on Structural Engineering & Construction 1001から 1014ページまで
2021/07 Sustainability evaluation of concrete materials utilizing the desirability approach with varying function shapes
Michael Henry, Joel Opon, Nicole Alexis Vios
Journal of Advanced Concrete Technology 19巻 7号 771から 784ページまで Japan Concrete Institute
2021/05 Exploring the experimental design and statistical modeling of cementitious composite systems using various sampling methods
Shengchi Ma, Michael Henry, Joel Opon
Journal of Advanced Concrete Technology 19巻 5号 501から 518ページまで Japan Concrete Institute
2021/04 Exploring the transfer of knowledge by Japanese engineers after participation in infrastructure maintenance training programs
Michael Henry, Koji Matsumoto, Hiroshi Yokota, Kohei Nagai
Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations 4084から 4088ページまで CRC Press
2021/01 Impacts of Global Warming and Variable Airborne Chloride Exposure on Concrete Structures in Hokkaido, Japan
Michael Henry, Yuki Tojo
Lecture Notes in Civil Engineering: Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction 1989から 2000ページまで Springer Singapore
2021/01 Factors Affecting the International Training Transfer for Capacity Development of Road Asset Management in Lao PDR
Amphaphone Bounnak, Michael Henry
Lecture Notes in Civil Engineering: Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction 2159から 2168ページまで Springer Singapore
2021/01 Utilization of Machine Learning for Analyzing Concrete Material Consumption in Japan
Nicole Alexis Vios, Michael Henry, Joel Opon
Lecture Notes in Civil Engineering: Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 1271から 1281ページまで Springer Singapore
2020/07 A multicriteria analytical framework for sustainability evaluation under methodological uncertainties
Joel Opon, Michael Henry
Environmental Impact Assessment Review 83巻 106403から Elsevier BV
2020/03 Evaluating Expectations for Training Transfer: Exploratory Study on a Capacity Development Project for Road and Bridge Technology in Myanmar
Michael Henry, Kohei Nagai, Koji Matsumoto, Hiroshi Yokota
Journal of Disaster Research 15巻 3号 368から 376ページまで Fuji Technology Press Ltd.
2020/01 Comparative analysis of the variability of surface air permeability of concrete road structures in Thailand
Michael HENRY, Koji MATSUMOTO, Kota HORIUCHI, Pakawat SANCHAROEN
Proceedings of the Japan Concrete Institute 42巻 1号 1738から 1743ページまで
2019/01 An indicator framework for quantifying the sustainability of concrete materials from the perspectives of global sustainable development
Joel OPON, Michael HENRY
Journal of Cleaner Production 218巻 718から 737ページまで
2019/01 Application of Response Surface Methodology and uncertainty analysis for exploratory analysis of concrete material sustainability
Joel OPON, Michael HENRY
Proceedings of the Japan Concrete Institute 41巻 1号 1559から 1564ページまで
2018/01 Investigation on quality of thin concrete cover using mercury intrusion porosimetry and non-destructive tests
Liyanto EDDY, Koji MATSUMOTO, Kohei NAGAI, Piyaphat CHAEMCHUEN, Michael HENRY, Kota HORIUCHI
Journal of Asian Concrete Federation 4巻 1号 47から 66ページまで
2018/01 Technology transfer for safe and sustainable road bridge life cycle management in Myanmar
Michael HENRY, Chika YAMASAKI, Kohei NAGAI, Koji MATSUMOTO, Hiroshi YOKOTA
Journal of Disaster Research 13巻 1号 88から 98ページまで
2018/01 Behavior-based indicator reduction technique for evaluating the sustainability of concrete
Joel OPON, Michael HENRY
Proceedings of the Japan Concrete Institute 40巻 1号 1437から 1442ページまで
2018/01 Media preference, information needs, and the language proficiency of foreigners in Japan after the 2011 Great East Japan Earthquake
Akiyuki KAWASAKI, Michael HENRY, Kimiro MEGURO
International Journal of Disaster Risk Science 9巻 1号 1から 15ページまで
2018/01 Internal knowledge sharing by infrastructure maintenance engineers in small and medium size construction companies in Japan
Chika YAMASAKI, Michael HENRY, Kohei NAGAI, Koji MATSUMOTO, Hiroshi YOKOTA
Engineering Journal 22巻 3号 243から 255ページまで
2017/09 The impact of income disparity on vulnerability and information collection: an analysis of the 2011 Thai Flood
Michael Henry, Akiyuki Kawasaki, Ichigaku Takigawa, Kimiro Meguro
JOURNAL OF FLOOD RISK MANAGEMENT 10巻 3号 339から 348ページまで WILEY
2016/04 Cracking and Chemical Composition of Cement Paste Subjected to Heating and Water Re-Curing
Michael Henry, Katsufumi Hashimoto, Ivan Sandi Darma, Takafumi Sugiyama
JOURNAL OF ADVANCED CONCRETE TECHNOLOGY 14巻 4号 134から 143ページまで JAPAN CONCRETE INSTITUTE
2016/01 高強度モルタルの基礎的物性に及ほ?す高炉スラク?細骨材の表面改質 の影響
橋本勝文, 上松瀬慈, ヘンリー マイケル, 横田弘
コンクリート工学年次論文集 38巻 1号 1473から 1478ページまで
2015/02 Relationship between degradation and self-healing behavior in high strength mortar exposed to high temperatures (up to 500 degrees C)
Tae-Ho Ahn, Michael Henry
JOURNAL OF CERAMIC PROCESSING RESEARCH 16巻 1号 156から 161ページまで KOREAN ASSOC CRYSTAL GROWTH, INC
2014/09 Sustainable concrete in Asia: Approaches and barriers considering regional context
Henry Michael, Kato Yoshitaka
Construction and Building Materials 67巻 C号 399から 404ページまで Elsevier
2014/09 Analysis of the effect of heating and re-curing on the microstructure of high-strength concrete using X-ray CT
Michael Henry, Ivan Sandi Darma, Takafumi Sugiyama
CONSTRUCTION AND BUILDING MATERIALS 67巻 A号 37から 46ページまで ELSEVIER SCI LTD
2014/07 Visualization and Quantification of Solute Diffusivity in Cracked Concrete by X-Ray CT
M. Henry, T. Sugiyama, I. S. Darma
Proceedings of 4th International Conference on the Durability of Concrete Structures 206から 211ページまで
2014/01 CSR activities in the construction and concrete industries: an analysis of web-based reporting
Michael HENRY, Takafumi SUGIYAMA
Proceedings of the Japan Concrete Institute 36巻 1号 2188から 2192ページまで
2014/01 Understanding the regional context of sustainable concrete in Asia: Case studies in Mongolia and Singapore
Michael Henry, Yoshitaka Kato
RESOURCES CONSERVATION AND RECYCLING 82巻 86から 93ページまで ELSEVIER SCIENCE BV
2013/01 東日本大震災後の各国政府の勧告と在住外国人の行動との関係
川崎昭如, ヘンリー マイケル, 目黒公郎
地域安全学会論文集 21巻 19号 219から 227ページまで 地域安全学会事務局
2013/01 2011年タイ洪水時の社会格差と災害情報収集に関する分析
ヘンリー マイケル, 川崎昭如, 目黒公郎
地域安全学会論文集 21巻 19号 241から 250ページまで 地域安全学会事務局
2013/01 Characterization of crack geometry in fire-damaged high-strength concrete under re-curing using X-ray CT
Michael HENRY, Ivan Sandi DARMA, Takafumi SUGIYAMA
Proceedings of the Japan Concrete Institute 35巻 1号 1177から 1182ページまで
2012/12 Understanding the regional context of sustainable concrete in Asia: Case studies in Thailand and Korea
Michael Henry, Yoshitaka Kato
RESOURCES CONSERVATION AND RECYCLING 69巻 122から 129ページまで ELSEVIER SCIENCE BV
2012/11 東日本大震災後の外国人退避の意思決定と災害情報収集過程の関係
HENRY Michael, 川崎昭如, 目黒公郎
地域安全学会論文集 18巻 16/18号 373から 380ページまで
2012/11 言語能力の違いに着目した東日本大震災後の外国人の災害情報収集分析
川崎昭如, HENRY Michael, 目黒公郎
地域安全学会論文集 18巻 16/18号 381から 390ページまで
2012/03 Properties and mechanical-environmental efficiency of concrete combining recycled rubber with waste materials
M. Henry, H. Yamashita, T. Nishimura, Y. Kato
International Journal of Sustainable Engineering 5巻 1号 66から 75ページまで
2012/03 Perspectives on Sustainable Practice and Materials in the Japanese Concrete Industry
Michael Henry, Yoshitaka Kato
JOURNAL OF MATERIALS IN CIVIL ENGINEERING 24巻 3号 275から 288ページまで ASCE-AMER SOC CIVIL ENGINEERS
2012/01 Current state and sustainable prospects in the Mongolian concrete industry
Michael HENRY
Proceedings of the Japan Concrete Institute 34巻 1号 1846から 1851ページまで
2011/10 An assessment framework based on social perspectives and Analytic Hierarchy Process: A case study on sustainability in the Japanese concrete industry
Michael Henry, Yoshitaka Kato
JOURNAL OF ENGINEERING AND TECHNOLOGY MANAGEMENT 28巻 4号 300から 316ページまで ELSEVIER SCIENCE BV
2011/09 Balancing durability and environmental impact in concrete combining low-grade recycled aggregates and mineral admixtures
Michael Henry, German Pardo, Tsugio Nishimura, Yoshitaka Kato
RESOURCES CONSERVATION AND RECYCLING 55巻 11号 1060から 1069ページまで ELSEVIER SCIENCE BV
2011/05 Behavior of Fire-Damaged Mortar under Variable Re-curing Conditions
Michael Henry, Masamitsu Suzuki, Yoshitaka Kato
ACI MATERIALS JOURNAL 108巻 3号 281から 289ページまで AMER CONCRETE INST
2011/01 社会的視座と階層化意志決定法に基づくコンクリートの持続可能性評価の枠組みの構築
加藤佳孝, Henry, M
土木学会論文集 E2 67巻 2号 322から 332ページまで
2011/01 Effect of recycled aggregate quality on variation and estimation of concrete strength
Michael HENRY, Kazuya HAGIWARA, Tsugio NISHIMURA, Yoshitaka KATO
Proceedings of the Japan Concrete Institute 33巻 1号 1535から 1540ページまで
2010/03 Formation of sustainable concrete by social perspectives in the Japanese concrete industry
Michael HENRY, Yoshitaka KATO
Journal of Society for Social Management Systems 6巻 1号
2010/03 Simple Beam Design, Cost & CO2 Assessment for Green Concrete Containing High Volume of Recycled Materials
German Pardo, Michael Henry, Tsugio Nishimura, Yoshitaka Kato
Journal of Society for Social Management Systems 6巻 1号
2010/02 高温加熱を受けたモルタルの物理化学的性状に及ぼす再養生条件の影響
鈴木将充, Michael HENRY, 加藤佳孝, 勝木太
セメント・コンクリート論文集 63巻 1号 308から 315ページまで Japan Cement Association
2010/01 Assessment of concrete sustainability using social perspectives and Analytic Hierarchy Process
Michael HENRY, Yoshitaka KATO
Proceedings of the Japan Concrete Institute 32巻 1号 1805から 1810ページまで
2010/01 APPLICATION OF THE ANALYTIC HIERARCHY PROCESS FOR ASSESSING SUSTAINABILITY AS ADDITIONAL VALUE IN CONCRETE MATERIALS
M. Henry, Y. Kato
PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON SUSTAINABLE URBANIZATION (ICSU 2010) 1514から 1521ページまで HONG KONG POLYTECHNIC UNIV, FAC CONSTRUCTION & ENVIRONMENT
2010/01 Durability and environmental impact of concrete combining various waste and recycled materials
Henry, M, Pardo, G, Nishimura, T, Kato, Y
2nd International Conference on Durability of Concrete Structures ICDCS2010 191から 200ページまで
2010/01 Effect of binder and aggregate type on mechanical and environmental performance of green concrete
German PARDO, Michael HENRY, Tsugio NISHIMURA, Yoshitaka KATO
Proceedings of the Japan Concrete Institute 32巻 1号 1811から 1816ページまで
2009/03 Simplified triple bottom line assessment for new concrete materials during the development process
Michael HENRY, Yoshitaka KATO
Journal of Society for Social Management Systems 5巻 1号
2009/01 Utilizing waste and recycled materials in fly ash fiber-reinforced mortar
Michael HENRY, Wataru HIRATA, Yoshitaka KATO
Proceedings of the Japan Concrete Institute 31巻 1号 1861から 1866ページまで
2008/01 Development of a damage-recovery relationship based on variable re-curing of fire-damaged high-strength mortar
M. Henry, T. H. Ahn, Y. Kato, T. Kishi
LIFE-CYCLE CIVIL ENGINEERING 165から 170ページまで CRC PRESS-TAYLOR & FRANCIS GROUP
2008/01 EVALUATION OF RE-CURING FOR THE RECOVERY OF HIGH-STRENGTH MORTAR EXPOSED TO FIRE :
Henry Michael, 安 台浩, 加藤 佳孝, 岸 利治
コンクリート工学年次論文集 30巻 1号 435から 440ページまで 日本コンクリート工学協会
2008/01 火害を受けたモルタルの耐久性に及ぼす再養生条件の影響
鈴木将充, ヘンリー マイケル, 加藤佳孝, 勝木太
コンクリート工学年次論文集 30巻 2号 711から 716ページまで 日本コンクリート工学協会