2019. 5. 8

Japan Society of Civil Engineers
International Activities Center

IAC News No.79
JSCE-PII Joint Seminar-Research,Specifications and Applications of Blast Furnace
Slag and Fly Ash Blended Cement Concrete
The Joint Seminar between JSCE and PII (the Institution of Engineers Indonesia – PERSATUAN INSINYUR
INDONESIA) was held at Sepuluh Nopember Institute of Technology (ITS), Surabaya, Indonesia on February
25, 2019. This was another joint seminar with the engineers and researchers from Indonesian side, just two years
after the last one that was held at Hasanuddin University, Makassar, Indonesia in 2017. The presenters and theirpresentation titles of this seminar are shown at Table 1.
Presentation
Multi-chemo-physical approach to performance assessment of structuralconcrete with SCMs
Indonesian FLY ASH and GGBFS: the regulation and application
Application of concrete containing high-volume mineral admixtures inJapan
Durability of road bridges and quality control
Introduction of JSCE specifications and technical recommendations forblast furnace slag and fly ash blended concrete

SpeakerProf. Tetsuya Ishida(The University of Tokyo)
Dr. Januarti Jaya Ekaputri(ITS, Indonesia)
Dr. Eiji Owaki(Taisei Corporation)
Dr. Yoshinobu Oshima(Public Works Research Institute)
Dr. Yao Luan
(Saitama University)

Table 1 Speakers and Their Presentation Titles

The title of the joint seminar is Research, Specifications and Applications of Blast Furnace Slag and Fly Ash
Blended Cement Concrete. It was decided according to the current conditions and demands of the industries in
the field of cement, concrete, and constructions, after discussing with researchers and engineers from Indonesia.
At present, the application of supplementary cementing materials (SCM) in cement and concrete, for example,
blast furnace slag (BFS) and fly ash (FA), is still very limited in Indonesia. FA has been regarded as a toxic
materials and its utilization in any construction needs strict review and special approval from the government.
For BFS, despite the fact that civil engineers have started to use it in concrete in recent years, the lack of technicalspecifications and practical experience impacts the quality of construction as well as the following management
and maintenance, having become a critical obstacle against a wider application. In addition, with a fast economic
growth, the discharge amounts of FA and BFS in Indonesia are increasing by years, resulting in a big burden on
economy and severe environment pollution. Facing to the aforesaid problems and challenges, it was decided to
introduce the recent conditions of research, specification, and applications of BFS and FA in Japan. We hopethat, through this joint seminar, Indonesian researchers and engineers start to pay attentions to Japanesetechnologies and specifications in the utilization of BFS and FA. In the future, the utilization in Indonesia will
be strengthened and improved.

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In the seminar, four speakers from Japan made the presentations. Prof. Ishida, The University of Tokyo,
introduced the recent research advance of SCMs blended concrete from various aspects, for example, theirchemical composition, shrinkage and cracking of concrete at early age, long time durability, and performanceassessment using numerical simulation. Dr. Owaki, Taisei Corporation, introduced the recent development andapplication of concrete containing high-volume mineral admixture, in which the total replacement ratio of SCMs
in cement was higher than 70%. Dr. Oshima, Public Works Research Institute, introduced the properties ofconcrete structures from the viewpoint of durability and maintenance, such as quality control and durability ofroad bridges. Dr. Luan, Saitama University, introduced the JSCE Standard Specifications for Concrete Structures,and some technical recommendations for FA and BFS that were published in Concrete Library of JSCE, forexample, the categories of FA and BFS in JIS, their utilization in massive concrete for thermal crack control, anddurability design for chloride attack and carbonation. In addition to the presentations made by the Japan side, Dr.
Ekaputri from ITS introduced the regulation and application of FA and BFS in Indonesia, for example, FA
characterization, development of geopolymers, self-healing concrete using FA and BFS, and so on.
The joint seminar received a lot of attentions from the Indonesia side. More than 100 people from universities,
institutes, and construction companies in Surabaya attended the seminar. They expressed their interest in the
research and application advance of FA and BFS in Japan. In the Q&A session, they asked a lot of questions
ranging from material compositions, practical construction work, quality control, and durability. The speakers
had a warm discussion with the audience. It can be said that the joint seminar is successful. More and deeper
technical communications are expected to be built between JSCE and PII in the future.

Prof. Ishida delivers a presentation

Dr. Ekaputri delivers a presentation

The Audience at the Seminar

Speakers and ITS Organizers【Reported by Concrete Committee, JSCE】
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Construction Site Tour for International Students
International Student Network Group held a construction site tour
to JR Shibuya Station for international students on February 25th
2019. In cooperation with East Japan Railway Company, an
introduction on Improvement Construction Work at Shibuya
Station and the construction site tour were conductedsuccessfully. Total 21 international students of 6 universities,
coming from 13 countries, joined the tour.
The tour started from 14:00 pm in the Shibuya Project Centernear to the Station. Mr. Nizeki, the director of the center,

Photo 1 Mr. Nizeki introduces the project

introduced the background and special features about this project(Photo 1).
As one of the busiest stations,JR Saikyo Line platform and JR
Yamanote Line platform were very far and inconvenient forpassengers. Passengers needed to go through a long passageway(bridge). It is needed to move the old Saikyo Line platform to a
new location beside the one of Yamanote Line while it is needed
to remove the old connection bridge.
One of the most difficult parts of the project is to elevate the

Photo 2 Mr. Oogawa explains important rules
before going into the station

railway about 1 meter higher in order to fit with the new platform.
That needs to be conducted without suspending the service of thebusy station. The redevelopment of Shibuya Station including
construction of some new station buildings will be completed by2027.
Before going into the station, Mr. Oogawa kindly explained thebasic rules such as giving ways to passengers and moving fast on
the platforms for the tour group, who were wearing the JRcompany’s helmets (Photo 2).

Photo 3 Participants listen to the explanation of
how to move all materials into the site

The group of about 30 members in line approached to theconstruction site on the platform. A lot of interesting technics
such as how to remove the bridge structural member by member
during the functioning of the station, elevating the railway,
foundation

construction

without

using

heavy

machine,transporting of materials, and monitoring the old structuresduring constructing new foundations. The international students
showed great interests in those technics used in the auctual
construction site and asked a lot of questions (Photo 3).

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Photo 4 Participants with Mr. Oogawa(Center)After the site tour, the group went back to the project center and had the discussion. They made many questions
who didn’t have chance to ask at the site. After finished the tour, some students said, “I was impressed that evena such important project was planned in detailed”, and “It was very difficult for me to see that the construction
was conducted in the very busy station during daytime.”【Reported by Ji Dang (Saitama University), International Student Network Group, IAC】

Introduction to Committee on Safety Problems
1. Overview of the Committee
The Committee on Safety Problems was organized under the current structure when the
new committee was established in September 1990. The chairman at that time was Mr.
Yoshiji Matsumoto (then professor at Tokyo University of Science), and the secretarygeneral was Mr. Takashi Chou (then professor at Shinshu University).
The purpose of the Committee is to examine and research problems related to civilengineering, such as accidents and disasters, so as to contribute widely to the society.
The Committee is composed of members from industry, government, and academia tocope with a wide variety of safety problems. The members examine and conduct Hiroki Takahashi
research on the basic properties of accidents and disasters and their countermeasures. (Secretary-General

Committee on Safety

The results are presented through a research debate session at the JSCE Annual Meeting. Problems)
2. Safety Problem Debate Session and Safety Engineering Symposium
The Committee regularly holds a Safety Problem Debate Session,and invites participants from inside and outside academia toprovide an opportunity to actively exchange opinions on safety
problems. The debate session deals with various themes, including
construction safety, labor safety, informatization construction,
disaster-prevention education, community disaster prevention, risk
management, business continuity planning, evacuation planning,resilience, and earthquake disaster information.
In addition, the session deals with safety problems throughexchanges with a wide variety of experts besides civil engineers.
Specific activities include dispatching executive committee Disaster-Prevention Leaflet
members to the annual Safety Engineering Symposium held by the (Japanese and English Version)
Science Council of Japan. In 2015, as the academic society incharge, we mainly hosted and operated the symposium.

43. Activities related to workshop for citizens and community disaster prevention
In recent years, wehave been holding workshops targeting

citizens using disaster-prevention leaflets prepared by theCommittee. Numerous topics, such as first aid and making paper
tableware using household items, and methods of safety
confirmation at the time of disaster, are summarized in thisuseful leaflet for citizens. Held in Takatsuki City, Osaka, theworkshop invites participants as well as lecturers to practicewhat was discussed.

Workshop for Citizens

The Committee also carries out studies on the way community disaster prevention should be realized throughthe Council of the Kagawa District Continuity Plan. In 2017, in cooperation with Kagawa Prefecture and Kagawa
University, we prepared the Kagawa Version of the Guidelines for BCP Preparation (Ver. 2). Based on theguidelines, we support the BCP preparation method, etc. in which the District Continuity Plan is placed as theupper-level concept.
【Reported by Hiroki Takahashi, Committee on Safety Problems】

Introduction to Committee on Underground Space (Part 1)
1. Overview of the Committee
Established by the Japan Society of Engineers in FY1994, the Committee on
Underground Space carries out analysis and research activities aimed at the efficient
use and enhanced convenience of underground space for public use. The areas ofactivity, as shown in Figure 1, range from civil engineering to city planning,architecture, law, medicine, psychology, welfare, and art. Accordingly, theCommittee members include civil engineers as well as experts in other fields.
Diverse research themes, which include topics besides civil engineering, shape theunique character of the Committee.

Kiichiro Sakai（Secretary-

The Committee’s activities cover a wide range of priorities. The details are General, Committee on
Underground Space）

introduced in this two-part report.
2. Activity Details
The Committee has four subcommittees: Planning of Underground Space; Disaster Prevention of UndergroundSpace; Environmental Psychology in Underground Space; and Maintenance of Underground Space . Each
subcommittee formulates its own activity plan based on a common theme that is decided by the Committee. The
four subcommittees actively carry out analysis and research activities according to the plan, with their ultimate
goal being to study underground space focusing on human-centered use.
In January every year, we hold the Symposium on Underground Space, which is a biggest opportunity toannounce the results of activities and to exchange information. This year marked the 24th symposium. The theme
for each year is based on the latest topics on underground space, and people from various fields give talks andpresent papers and display panels. At the 24th Symposium on Underground Space held on January 25 this year,5theparticipants

discussed

theirvisionofunderground space under the theme of To
Establish a Safe and Secure Society: Friendly
Underground Space Dealing with Diversity andIncrease of Users.
As another important part of the Committee’s
activities, we strive to publicize widely theachievements, knowledge, challenges, policies,
and opinions gained through analysis and research
activities, and to utilize them efficiently.
The main activities in this area include organizing

Fig.1 Illustration of the Committee’s Areas of Activity

visits to various underground facilities, holding
seminars around the country, and promoting the concept of underground space through the mass media. Details
about the site visits are given in the following chapter, and the seminars and promotional activities are describedin the second part of this report.

3. Implementation of Parent-Child Site Visits for Elementary School Students.
Since FY2007, we have carried out “Site Visits for

回数

開催日

会場

見学場所

東京会場 東京メトロ副都心線 新宿三丁目駅付近

Children and Their Parents on Summer Vacation”

第1回

2007年8月22日

for elementary school children, who will forge the

第2 回

2008年8月2日

future. The concept of these site visits is slightly

第3 回

2009年8月1日

第4 回

2010年8月7日

第5 回

2011年7月30日

第6 回

2012年7月28日

第7 回

2013年7月27日

第8 回

2014年7月26日

第9 回

2015年7月25日

東京会場 東京外かく環状道路 市川市田尻地区～平田地区

第10 回

2016年7月30日

東京会場 東京メトロ 東西線南砂町駅改良工事建設現場及び地下鉄博物館

第11 回

2017年7月29日

東京会場 相鉄・東急直通線，新横浜駅他工事

different from ordinary site visits. Here, theparticipants experience actual underground space
and then take a quiz, identifying both theconveniences and problems of underground spaceand considering desirable features for future
underground space. In principle, the site visits areheld simultaneously in Kansai and Kanto.

第12回

大阪会場 京阪電鉄中之島線 天満橋駅付近
東京会場 首都高中央環状新宿線建設現場
大阪会場 阪神なんば線建設現場
東京会場 東急東横線 渋谷駅～代官山駅間 地下化 工事現場
大阪会場 阪神高速道路 淀川左岸線 工事現場
東京会場 ＪＲ新宿駅南口周辺 建設現場
東京会場 東京急行電鉄株式会社 東横線渋谷～代官山間 改良工事現場
大阪会場 阪神高速道路株式会社 大和川線 工事現場
東京会場 相鉄・ＪＲ直通線，羽沢駅他工事 工事現場
大阪会場 一般国道 京都西立体交差事業 千代原口地区 工事現場
東京会場 相鉄・ＪＲ直通線，西谷トンネル他工事 工事現場
東京会場 東京外かく環状道路 市川中工事
大阪会場 神戸市水道局 大容量送水管（奥平野工区）整備工事

2018年7月28日

東京会場 東京駅北通路周辺整備工事 → 台風により中止

2018年8月4日

大阪会場 阪神電気鉄道梅田駅大規模改良工事

Table 1 List of Parent-Child Site Visits

However, depending on the progress of the
project, the visits are sometimes held only in Kanto. A record of the site visits so far is shown in Table 1.
We also award a “Kid Expert on Undergrou nd Space” certificate to elementary school students who participate
in the site visit to encourage their interest in various issues of underground space over the long term. The
maintenance work site visit to the surrounding area of the Tokyo Station North Passage, which was to be held
on Saturday, July 28, 2018, was canceled at the last minute due to a typhoon. However, the improvement worksite visit to the Hanshin Electric Railway Umeda Station in Osaka was held the following week, on Saturday,
August 4, and was a highly successful parent-child site visit with many participants. This activity is evaluatedand selected as meeting the definition of “Development and Utilization of Next-Generation Engineers”(promotion to realize education that gives the younger generation hope) in the activity plan and subsidy basedon FY2018 JSCE2015.

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4. Activity Report (Part 2)
It is often said that civil engineers are not good atcommunicating the significance of their activities tosociety. As a result, it is hard to know if society recognizes
the significance of building social capital such as
infrastructure improvement. To improve this situation, weconcentrate on activities that will raise people’s awareness,such as the Site Visits for Children and Their Parents on
Summer Vacation.
The second part of our report describes in detail thepromotional activities utilizing the mass media, which is

Photo 1 The 12th Parent-Child Site Visit (Osaka
Venue: Improvement Work of Hanshin Electric
Railway Umeda Station)

another method. Please don’t miss it!
【Report by Kiichiro Sakai (Tekken Corporation), Secretary-General, Committee on Underground Space】【Alumni of DOBOKU Series】

Rapid Globalization of Engineering in Infrastructure– based on experience in Australia
Dr Jay Lee, PE, FIEAust, CPEng, AECOM Associate Director
Since the completion of my undergraduate study, I have worked as a geotechnical e
ngineer for more than 27 years experiencing the design and construction of numerous
infrastructures in Seoul, Tokyo, and Melbourne. The collaboration with Japaneseengineers for tunnelling projects in South Korea made me inspired to move to Japan for
expanding my horizons and start studying further about earthquake geotechnicalengineering at Hamada Laboratory in Waseda University. Following on from my study
and professional service in Japan for ten years, I have worked as a geotechnical
Jay Lee (AECOM

consulting engineer in Australia for another past eight years. Recent strong demands for Associate Director)
infrastructures in Australia have attracted great attention to both local and international
engineering firms, which have expedited the globalization of engineering. This article
introduces the growth of engineering demands in Australia and the rapid globalizationof engineering in infrastructure.
Boom for Infrastructure in Australia
The remarkable growth of the world economy in the 2000s led to an unprecedented resources boom in Australia
that brought about a significant increase in demands for industrial infrastructures. Newly industrializing
countries such as Chinese and India have aggressively taken a positive stance toward investment on developmentof oil and gas fields as well as iron ore and coal mines in Australia to secure the stable supply of commodities,
which have enabled the launch of billion-dollar infrastructure projects in both onshore and offshore environments.
This resources boom has wound down for the past three years as the growth of the world economy was slowing
down. Nevertheless, there has been another surge of large scale projects for transportation infrastructure in
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Australian major cities with the steadily growing population, which is called “infrastructure boom” following“resources boom”. As displayed in Figure 1, this surge in infrastructure will rise to the peak in between 2019and 2023, afterward remaining high for the time being.

Fig.1 Forecase for infrastructure projects in Australia (from AGE, 2018)

Unlikely in the resources boom, these transportation infrastructure projects take place in urban areas where there
are a number of existing structures, for which the impact of construction should be carefully taken into
consideration. Moreover, the strong demands for new commercial and residential buildings have kept the urban
areas more congested than ever before.
Construction in this environment
necessitates highly skilled techniquesand extensive experiences to deal
with problems in a congested area
which are familiar to Japaneseengineers who are used to working inbusy urban areas like the Tokyo
metropolitan area registering an
enormous population. For instance,
the new Melbourne metro line attracts
exceptional

attention

becauseitpasses through the forest of historicalFig.2 Melbourne Metro Project (from Herald Sun, 2018)

buildings in the middle of the city as
shown in Figure 2. The new Melbourne metro line also runs under the Yarra River, which highlights theemployment of advanced construction techniques to manage the impact of tunnelling on the environments aslittle as possible.
Rapid Globalization of Engineering
When starting to work in a global engineering company, WorleyParsons based in Australia, eight years ago, I
found the systematic business network and workshare system over more than 50 countries greatly impressive.
Utilizing the work share system for infrastructure engineers only based in a few key locations such as Melbourne,
8Singapore, Perth, and Huston, the company maximized its technical offerings for infrastructure projects invarious resources fields which would arise all over the world. I recall being extensively involved in projects in
Middle East, Africa, and America regions while sitting in Melbourne office. Now even working for anotherengineering company, AECOM, that primarily focuses on transportation infrastructures in a specific business as
usual region, I can also notice a similar workshare system and network of experts build up across different
geographical regions to utilize all available technical expertise in a more efficient way. In other words, global
engineering companies have risen to challenges to maximize their capabilities by globalizing the technicalstrength in scattered key locations. Besides, large scale infrastructure projects in Australia are delivered withvarious contractual vehicles including Public Private Partnership, calling up international as well as local
participants, which increases the participation of engineering companies from other Asian regions such as South
Korea and Singapore. These international participants are expected to not only bring in their technicalexperiences but also diversify the culture of the construction industry.
Expectation for Japanese Engineers Contribution
I believe my knowledge and experience gained in Japan have enabled me to work as a geotechnical expert here
in Australia. I take this opportunity to acknowledge all the support provided for my work and life in Japan.
Japanese extensive experiences and advanced technical strength of civil engineering grown in severe
environments where there are recurrent attacks of catastrophic natural hazards as well as restricted working
spaces in busy urban areas will be expected to make a great contribution to the expansion of infrastructure over
the world. To this end, more than essential are communication skills that connect with people in overseas
countries and technical leadership that leads to a fair way to success in challenges in the worldwide infrastructure
markets.
I look forward to seeing more opportunities to cross paths with Japanese engineers in overseas projects.
References
1)

The Age (2018), The infrastructure boom cometh

2)

The Herald Sun (2018), Blank Cheque for Metro Rail Tunnel Vision

Profile: Born in Seoul in 1969. After obtaining a Doctoral degree from Waseda University under the guidance of Professor Masanori
Hamada in 2005, Dr Lee worked for Kajima Corporation, and then moved to Australia in 2011. He is currently working for AECOM
as a geotechnical engineering specialist based in Melbourne, Australia.
《Column》Takuji Yamamoto, KAJIMA Technical Research Institute,
Dr Lee completed his doctoral study in Waseda University after working in the design department ofa Korean contractor for eight years. He had good knowledge on physical and numerical modelling aswell as excellent communication skills in both Japanese and English when joining Kajima TechnicalResearch Institute (KaTRI). He had contributed on the development of tunnelling technologies during
his six year tenure at KaTRI. He also significantly assisted with organizing the Japan-Korea
Symposium on Landslides, which led me to sense cultural differences from Korean contractors who
have pushed forward expansion of overseas business. I look forward to seeing his further contribution
to the construction industry across Japan, Korea, and Australia.
※Alumni of DOBOKU Series is in collaboration with Editorial Committee of JSCE Magazine.

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Updates◆The first JSCE-ASCE Symposium on Infrastructure Resilience (May 22-23, 2019)http://www.jsce-int.org/node/596◆The second Young Civil Engineer’s Salon in June

http://committees.jsce.or.jp/kokusai/◆The 21st International Summer Symposium in 2019 (September 3-4)
http://www.jsce-int.org/node/592◆The International Infrastructure Archives– A Compilation of Japan’s Greatest Projects in Transfer of Civil Engineering Technology in Service –http://www.jsce.or.jp/e/archive/◆Asian Civil Engineering Coordinating Council (ACECC) International Newsletter
http://www.acecc-world.org/newsletter.html◆IAC “News Pick Up!!” on the JSCE Japanese website
http://committees.jsce.or.jp/kokusai/node/118◆Summary of featured articles in JSCE Magazine Vol. 104, No.5, May 2019http://www.jsce-int.org/pub/magazine◆Journal of JSCE
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