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Greeting the New Year

By M. Yoshimura

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Special Issue : Front Line of Admixture

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1. Chemical Admixture

   1.1 Chemical Admixture Containing Viscosity Modifying Agent

   By K. Oda

   1.2 Chemical Admixture with Shrinkage Reducing Function

   By R. Kobayashi and K. Saito

   1.3 Long Flowability Retaining, Air-entraining Mid-range Water-reducing Admixture

   By S. Koizumi and J. Sakue

   1.4 Stiffness Reducing Agent of Fresh Concrete

   By H. Nemoto, S. Hirano, S. Date and S. Hashimoto

   1.5 Action Mechanism and Application Examples of C-S-H Type Accelerator

   By H. Koyama and H. Imoto

   1.6 Drying Shrinkage Reducing Agent Easing the Frost Damage Deterioration due to the Freeze-thaw Effect

   By H. Nishi

   1.7 Pumping Improver

   By R. Tamaishi

   1.8 Forefront of Accelerator for Shotcrete

   By A. Araki

2. Mineral Admixture

   2.1 Property of Low Heat and Shrinkage Type Blast-Furnace Slag Cement and Case of Construction

   By H. Takenaka, K. Morita and E. Sueoka

   2.2 Application of Fly Ash Not Satisfying JIS to Civil Engineering Materials

   By M. Ishikawa, H. Kagimoto, M. Kawanami and Y. Nonaka

   2.3 Concrete Using Carbon-free Fly Ash

   By M. Hisada, Y. Sato, H. Nitta, S. Isogami, T. Sato and M. Higaki

   2.4 Revised Points of JIS A 6207 “Silica fume for use in concrete” and Application Examples of Silica Fume Concrete

   By H. Mori, H. Jinnai and S. Nagataki

   2.5 Recent Trend of Concrete with Expansive Additive

   By E. Takeshita and Y. Nagashio

   2.6 Effect of Suppressing Crack of Concrete by Urea

   By H. Tanaka and T. Ayano

   2.7 Concrete with Rapid Hardening Admixture

   By Y. Nagashio and A. Sugiyama

   2.8 Volcanic Glass for Concrete

   By A. Tomoyose, T. Noguchi, K. Sodeyama and K. Higashi

   2.9 Development of Concrete Containing High-volume Supplementary Cementitious Materials and Its Applications

   By E. Owaki, R. Okamoto, J. Matsumoto and S. Watanabe

   2.10 Environmentally Conscious Concretes Using Various Admixtures

   By K. Yoda, H. Kasai, H. Momose and K. Ishizeki

3. Other Functional Materials and New Development

   3.1 Stabilizer used for the Sludge-Water

   By T. Nishimura and N. Ago

   3.2 Admixture for Improving Performance of Concrete Using Blast Furnace Slag Sand

   By T. Ayano and T. Fujii

   3.3 [γ-C2S] Multifunctional Material Used for Quality Improvement of Concrete and Reduction of CO2 Emission

   By T. Torichigai, K. Yokozeki, K. Watanabe and M. Morioka

   3.4 Geopolymer as a Construction Material in Low-carbon and Resource Recycling Society

   By K. Minami, K. Ohta, M. Funahashi and H. Kajita

   3.5 Quick Hardening Polymer Cement Mortar Used for Floor Slab Bridge Repair

   By S. Akae and M. Ishida

4. Future Prospects

   4.1 The Future of Chemical Admixtures

   By R. Tamaishi

   4.2 A Review of Ground Granulated Blast Furnace Slag for Concrete

   By Y. Ohtsuka and Y. Dan

   4.3 Expectation for Admixtures in the Future

   By K. Ichise