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Greeting the New Year

By M. Yoshimura

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Special Issue: Expected Concrete Technology in the Reiwa Era

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1. Introduction

   1.1 Concrete Play Back to Modern Reinforced Concrete Buildings

   By K. Ishibashi and K. Nakano

   1.2 Concrete Structural Technologies in Civil Engineering Expected in the Reiwa Era

   By H. Mutsuyoshi

   1.3 Architecture and Concrete Expected in the Reiwa Period

   By T. Noguchi

   1.4 Concrete Technology Expected in the Reiwa Period for Civil Engineering

   By T. Kishi

2. Design and Construction

   2.1 Design and Construction of Concrete Structures in Expressway

   By Y. Kamihigashi

   2.2 Research and Development of Method to Judgement for End Timing of Curing

   By T. Misaka and T. Iyoda

   2.3 Development of "Information Sharing System using Cloud for Ready-mixed Concrete" -Verification of Productivity Improvement and Advanced Quality Control of On-site Concrete Works under the PRISM Project-

   By T. Ohtomo, T. Watanabe, K. Ueda and T. Kitahara

   2.4 Outline of 3D Printing Technology with Cement Based Materials and Its Impact on the Construction Industry

   By T. Ishida and K. Kinomura

   2.5 Application of Precast Concrete in Road Bridge

   By T. Kosaka

   2.6 Pre-casting of Railway Viaduct and Bridge

   By K. Fukuta

   2.7 Precast Construction Method in Architectural Field

   By K. Kanemoto

3. Materials

   3.1 Development of Cement Technology from Heisei to Reiwa

   By T. Takahashi

   3.2 To Expand the Use of Blast Furnace Slag in the Era of the Environment

   By Y. Dan

   3.3 Expected Availability of CCPs for Reiwa-Era

   By Y. Ishikawa

   3.4 The Future Chemical Admixtures

   By R. Tamaishi

   3.5 Future-Oriented Chemical Admixture by Synthesis of Water-Reducer Components

   By A. Suga

   3.6 Brief Review on Stress-induced Energy Adsorption Mechanism of Material

   By I. Maruyama

   3.7 Ultra-Low Shrinkage and Low-Carbon Concrete that Contributes to Sustainability

   By T. Matsuda, H. Shinozaki, W. Sasaki and Y. Nonami

   3.8 Corrosion - Resistant Steel Rebar in Concrete Structure for Permanent Lif

   By T. Nishimura

   3.9 Study on Application of Thermoplastic FRP to Concrete Member

   By S. Miyazato, A. Hokura, H. Ueda and Y. Takaiwa

4. Maintenance

   4.1 Future Outlook for Inspection and Diagnosis Technologies of Port Concrete Structures

   By E. Kato

   4.2 We can Use Neutrons well at a Compact Neutron Source

   By M. Mizuta, Y. Yoshimura, H. Sunaga and Y. Otake

   4.3 Changes and Prospects of Maintenance Technologies for the Railway Concrete Bridges

   By S. Aramaki, N. Nomura and Y. Kotani

   4.4 New Initiatives and Future Prospects on Electrochemical Corrosion Control Method

   By M. Yamamoto, S. Mizutani, R. Tanaka and T. Sasaki