This news letter reports the most up-to-date information on the English publication and activity of JSCE Concrete Committee. It also provides information on available technical documents that can be downloaded or purchase.

No. 11, October 2007

Report

JSCE Concrete Committee Forum on "Concrete and Environment"

JSCE Concrete Committee organized a forum on "Concrete and Environment" at Hiroshima University (Higashi-Hiroshima city) on 12 September 2007 in conjunction with JSCE 2007 Annual Meeting. The coordinator and panelists are as follows:

Coordinator:
Prof. Koji SAKAI (Kagawa University)
Panelists:
Mr. Hiroshi OHTA (Kumagai Gumi)
Ms. Minori TAKADA (Taiheiyo Cement Corporation)
Mr. Shinri SONE (Ministry of Land, Infrastructure and Transport)
Prof. Tomonari YASHIRO (The University of Tokyo)

click here for detail (OpenForum20070912)

Publication

JSCE Guidelines for Concrete No.11
"JSCE-STANDARDS ON TEST METHODS OF REPAIRING MATERIALS USED FOR CONCRETE STRUCTURES"

This guideline contains the JSCE standard on test methods for concrete repair materials.

As the number of deteriorated concrete structures is increasing in Japan, the demand for use of repair materials has also increased at a high rate. To date many kinds of repair materials has been developed and are commercially available. However, a test standard for their physical or chemical characteristics is still not firmly established. Therefore, great many difficulties must be overcome to obtain the best performance of repair materials for use in repair, work of deteriorated concrete structure.

JSCE organized a Working Group in 1989 to establish a JSCE standard on the test method for concrete repair materials. Standards that have been proposed since then are listed here.

Selected examples of Description;
Contents
Test method for oxygen permeability of concrete surface coating materials (K 521 1999)
Test methods for weathering resistance of concrete surface coating materials (K 511 2007)
To order, contact:
MARUZEN Co., Ltd., Export Department
P. O. Box 5050, Tokyo International 100-3199, Japan
Fax: +81-3-3278-9256, E-Mail: t_kaneko@maruzen.co.jp

Research Committee

Subcommittee on Seismic Design of Concrete Structures (JSCE 329)

Six month after the 1995 Hyogoken Nanbu Earthquake, the JSCE Task Committee 303 on seismic behavior of concrete structures (Chair: Prof. K. Maruyama, Nagaoka University of Technology) was established, and fruitful discussions on the seismic behavior and performance verification of RC structures were held. Following the conclusions reached by Committee 303 in 2003, a Task Committee 329 on seismic design of concrete structures (Chair: Prof. H. Shima, Kochi University of Technology) was established. The objectives of the activities of the committee are: to investigate the current technical situation of seismic design, to investigate the techniques for a ”good” structural design using JSCE Standard Specifications for Concrete Structures (Seismic Performance Verification) published in 2002, and to discuss about the essential numerical techniques and the required performance of RC structures.

click here for detail (JSCE329)

Award

JSCE Award 2007
The following researchers have received the JSCE Award 2007 in the field of concrete.

Distinguished Service Award

Prof. Hajime OKAMURA
(President of Kochi University of Technology, Emeritus Professor of The University of Tokyo)
Thesis Award
Title: MAINTENANCE OF RC HOLLOW SLAB BRIDGE DAMAGED BY CONTAMINATED SALT
Kiyoshi HONJO (West NEXCO)
Yasushi KAMIHIGASHI (Central NEXCO)
Tsuyoshi MARUYA (Taisei Corp.)
Hideaki TANIGUCHI (Sumitomo Mitsui Construction Co., Ltd.)
Toyoaki MIYAGAWA (Kyoto University)
          Abstract
Incentive Award
Title: RELIABILITY-BASED DURABILITY DESIGN FOR REINFORCED CONCRETE STRUCTURES EXPOSED TO MARINE ENVIRONMENTS
Yoshimitsu AKIYAMA (Tohoku University)
Yuka ITO (East Japan Railway Co.)
          Abstract
Yoshida Prize
　
Research accomplishment
Title: DETERIORATION MECHANISM AND PREVENTION OF ALKALI SILICA REACTION OF CONCRETE
Mitsunori KAWAMURA (Emeritus Professor of Kanazawa University, Quest Engineer Co.)
　
Thesis
Title: SIMULATION OF STEEL CORROSION IN CONCRETE BASED ON THE MODEL OF MACRO-CELL CORROSION CIRCUIT
Tsuyoshi MARUYA (Taisei Corp.)
Hitoshi TAKEDA (Taisei Corp.)
Kenichi HORIGUCHI (Taisei Corp.)
Kairin SHU (National Kaohsiung First University of Science and Technology)
          Abstract
　
Title: COMPRESSIVE FAILURE BEHAVIOR AND MECHANICAL PROPERTIES OF RC COLUMNS WITH NORMAL- AND HIGH-STRENGTH MATERIALS UNDER CONCENTRIC COMPRESSION
Mitsuyoshi AKIYAMA (Tohoku University)
Masatoshi WATANABE (Nishimatsu Construction Co., Ltd.)
Satoshi ABE (Obayashi Corp.)
Syoto SAI (Zenitaka Corp.)
Naomi MAETA (Tohoku University)
Tomoyuki SUZUKI (Tohoku University)
          Abstract

The JSCE Concrete Committee

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Editor-in-Chief: Koji Sakai
Associate Editors: Hikaru Nakamura,
Atsushi Hattori,
Kohei Nagai,
Eiji Owaki,
and Takumi Shimomura