Nagoya Branch
Nagoya Mitsui Building Annex, 1-24-20, Meiekiminami, Nakamura-ku, Nagoya, Aichi Prefecture 450-0003, JAPAN
TEL:+81-52-565-8370 FAX:+81-52-565-8373

Osaka Branch
Nakanoshima Festival Tower West Bld., 3-2-4, Nakanoshima, Kita-ku, Osaka, Osaka Prefecture 530-0005, JAPAN
TEL:+81-6-7730-9842 FAX:+81-6-7730-9843

Sapporo Sales Office
Hokkaido Building, 4-1, Kitanijonishi, Chuo-ku, Sapporo, Hokkaido Prefecture, 060-0002, JAPAN
TEL:+81-11-222-1698 FAX:+81-11-221-5229

Sendai Sales Office
Mitsui Seimei Sendai Honcho Bldg., 1-1-1, Honcho, Aoba-ku, Sendai, Miyagi Prefecture, 980-0014, JAPAN
TEL:+81-22-721-3801 FAX:+81-22-227-6252

Fukuoka Sales Office
Denki Bldg. Kitakan, 2-1-82, Watanabe-dori, Chuo-ku, Fukuoka, Fukuoka Prefecture 810-0004, JAPAN
TEL:+81-92-713-6298 FAX:+81-92-751-6416

Corporate Profile

Himeji Office
213 Shojo, Ibogawa-cho, Tatsuno, Hyogo Prefecture 671-1621, JAPAN
TEL:+81-791-72-3800 FAX:+81-791-72-3800

IHI Construction Materials Co., Ltd

Ibaraki Dai-ichi Work3347-1, Aso, Namegata, Ibaraki Prefectre 311-3832, JAPAN
TEL:+81-299-72-0851 FAX:+81-299-72-0857

Ibaraki Dai-ni Work2744-3, Aso, Namegata, Ibaraki Prefectre 311-3832, JAPAN
TEL:+81-299-72-3336 FAX:+81-299-72-3339

Shizuoka Work90, Ouke, Shimada, Shizuoka Prefecture 427-0013, JAPAN
TEL:+81-547-36-1155 FAX:+81-547-36-1158

Research and Test Center1 Shin-Nakahara-cho, Isogo-ku, Yokohama, Kanagawa Prefecture 235-8501, JAPAN
TEL:+81-45-759-2346 FAX:+81-45-759-2354●The contents of this catalog reﬂect circumstances
as of March 2018.

●Please be aware that the speciﬁcations, dimensions,and appearances published in this catalog are
subject to improvement, and thus are subject tochange without notice.

IHI Construction Materials Co., Ltd
Ryogoku City Coa, 2-10-14, Ryogoku, Sumida-ku, Tokyo, 130-0026, JAPANTEL : +81-3-6271-7211 FAX : +81-3-6271-7299
URL : http://www.ikk.co.jp/●Please be aware that the printing process cancause the color tone of products to appear
diﬀerently from actual colors.

●Please understand that locations are subject tochange.

●IHI and its logo are registered trademarks of IHI.
IKK01-001-00-1803-500FXSS(FB018) Printed in Japan

Message from the President

Creating New Value for Society

Producing the Future of
Urban Spaces asa Leader inConcrete Products
In each new urban space,
there exists a world visible only to those who consistently push
to expand the frontiers of engineering.
We will continue to focus mainly on segment development tofervently support the creation of future spaces in civilengineering, architecture, and other ﬁelds, and continue tocreate worthwhile urban spaces that are appropriate to theireras and coexist with the environment.

IHI Construction Materials Co., Ltd. has successfully
created social infrastructure that meets the needs of society
by staying true to the IHI Group management philosophiesof “Contribute to the development of society throughtechnology” and “Human resources are our single mostvaluable asset.”In the ﬁeld of segments used in shield construction work, aform of urban tunnel construction, we supply concretesegments, steel segments, composite segments, joints, and awide variety of other products that meet a diverse array ofneeds by drawing upon our ample experience andoutstanding technical development capacity. Thus, we
continue to contribute to the establishment andimprovement of roads, subways, utility conduits, water andsewerage systems, and more.
We are also expanding our expertise in civil engineeringand building business with the URT method used underrailways and roads, the PCL method in which lining is used
to repair and reinforce tunnels, the replacement of PC slabs
on aging bridges, glass ﬁber-reinforced cement noisebarriers and landscape walls for thermal power plants, andmuch more.
Needs for social infrastructure continue to diversify as theworking-age population declines, infrastructure ages, andother challenges present themselves in the current
business environment. The incorporation of ICT intobusiness quickly ushers in reform, and the frontier
technology of artiﬁcial intelligence (AI) is rapidly spreading.
We aim to conﬁdently respond to these changes in thebusiness environment, contribute to the development of asustainably growing society, and create new businessendowed with the new values that our customers seek.
We strive to work together as one, and appreciate yoursupport and cooperation.
IHI Construction Materials Co., Ltd.
President and Representative Director

Hirohide Hashimoto1

2

Constant Development of Technical Capacity

1990

Kandagawa River Balancing Reservoir(Double O-Tube [DOT] segments)

Our company has always continued to create new value in social infrastructure and other fields in response to
the trends of the times and our customers’ needs.

2010

Yokohama Circular North Route (steel
fiber-reinforced concrete [SFRC])

Here, we trace our company’s history and development of technology.

1992

1970

Trans-Tokyo Bay Expressway

RC slab segments

2004

Sandwich slabs

1965

Composite segments

1972

Bolt-free segments

1985

1992

Plant materials (Ducts, stairs/passageways)

SSPC (Steel segments withpre-filled concrete)

1985

2007

Eco-friendly concrete

Precast Concrete Lining (PCL) Method

1966

Steel segments

Under Railway Tunneling (URT) Method

Honeycomb segments

2016

Tokyo Gaikan Expressway ramps

2009

1989

PC-ATM
Pre-Cast Arch
Tunnel Method

1967

Tokyo Metropolitan Central Circular
Shinagawa Route (steel beam lining [SBL])

1995

Push grip joints

Precast slabs

2012.3

1997

1979

Horizontal cotter joints

Glass fiber-reinforced concrete (GRC) noise barriers

2001.91990.5

logy
o
n
h
c
y of TerotsiH
istoryH
ynaComp
1965.8Ishikawajima-Harima Heavy
Industries Co., Ltd. (currently IHI
Corporation) received their first orderfor segment products (composite
segments)

1981.7
1974.12
Ishikawajima-Harima Heavy
Industries Co., Ltd. (currently IHI
Corporation) establishes
Ishikawajima Construction Materials
Co., Ltd. (currently IHI Construction
Materials, Co., Ltd.) and opens the
Osaka Sales Office (currently the
Osaka Branch) and the Nagoya Sales
Office (currently the Nagoya Branch)1978.4Opened the Fukuoka Sales Office

3

1960

2015

Tokyo Gaikan Expressway main routes

1993

1973

Established the standard segment for shield work

1978

2014

Koto Sewer Main (IKK composite [IC]segments)

1970

Established Chubu Segment Co., Ltd. asa subsidiary in charge of manufacturing

1985.9Acquired shares of the manufacturing companies
Kanto Segment Co., Ltd. and Showa Kosan Co.,
Ltd., and made them into subsidiaries

1988.3

Established IT Precon Co., Ltd. andexpanded into the field of exteriorwall materials for buildings

1997.3Acquired shares of Livecon
Engineering Co., Ltd. and made it asubsidiary company

1998.11
Earned ISO 9001 certification

2003.5Acquired shares of Toho Co., Ltd. asa subsidiary in charge ofmanufacturing

2005.3Acquired all shares of Kanto Segment
Co., Ltd. and made it a wholly owned
subsidiary

2006.6Opened the Himeji Office

Listed in the Second Section of the Tokyo Stock Exchange

2012.9Started manufacturing and supplying
beams and pillars

2013.10Opened the Sendai Sales Office

2015.4
Absorbed subsidiary Kanto Segment
Co., Ltd. and changed name to IHI
Construction Materials Co., Ltd.

2007.4

1989.7Merged subsidiaries Kanto Segment
Co., Ltd. and Toho Co., Ltd.

Established Ishikawajima Construction Material
Corporation and expanded into the field of
distribution of civil engineering and building materials

1980

Merged subsidiaries Kanto Segment
Co., Ltd. and Showa Kosan Co., Ltd.

Ishikawajima Construction Materials
Co., Ltd. became a wholly owned
subsidiary of IHI Co., Ltd. as theresult of a takeover bid, and becamedelisted from the Second Section of
the Tokyo Stock Exchange

1990

2000

2010
4

Civil Engineering Business

Segment BusinessWe supply RC segments, steel segments, and composite segments thatare used in shield tunnel construction work in subways, road tunnels,
sewer lines, underground rivers, and more. We are also devoting energy
to developing new segment technology.

We implement proposals that require advanced civil engineering
technology to shorten construction schedules when constructing
multi-level intersections and grade-separated railway crossings, taking
measures to extend the lives of road tunnels, bridges, and more.

Segment Business

Civil Engineering Business

Segment Business

Segment Business

Civil Engineering
Business
Civil Engineering Business

New Business
New Business

New Business5

Building Business
Building Business

Building BusinessIn addition to our past achievements and technology, we develop
state-of-the-art technology to create the new business that will sustain us
into the next generation.

We meet the intricately individual needs of our customers by capitalizing on
our wealth of knowledge and experience in the energy sector and otherfields for domestic and international building business.

New Business

Building Business6

Segment Business

Segment Business

Segment Business

Ultra Rapid Under Pass (URUP) Method

Ultra Rapid Under Pass

The latest excavation method forthe construction of multi-level

Segment Businessintersections. The prominent
feature is that the tunnelingWe develop a diverse array of segments toshield starts and finishes

respond to the needs of the times.

excavation at the ground level,
which results in the shortest of
possible underpasses.

IKK Composite (IC) Segments

IKK Composite Segment

Composite steel and concretesegments with reinforcement bars

Concrete filling

installed inside steel shells that

Harmonica Tunneling Method

comprise steel sheets on five sides.
Adaptable to small-, medium- andlarge-section tunnels. Segment

Tunnels and structures withthickness can be made thin.

large, rectangular cross-sections
Before placing concrete

are divided into smaller sections.
A small excavator is used toMain girder

excavate the smaller sections

Ribin succession, and then theMale metal
fixturelarge, rectangular structure isTransverse
reinforcement bar

Joint plate

built within the total excavatedsection. This versatile method

Longitudinal rib
Female metal
fixtureCircumferential
reinforcement bar

enables work under shallow
After placing concrete

earth coverings, in curved
sections, and over long distances
greater than 100 m.
(JICE Technological Development

Steel Beam Lining (SBL)
Composite main steel materialand concrete segments.
Segment thickness can bemade thinner even underparticular load conditions.

Excellence Award)

Steel Beam Lining
Skin plate

Bundles

Installed on outer surfaces tocreate a completely watertightstructure. Also effective atpreventing tail brush friction.

Members required to connect
the inner and outer surfaces ofthe segments. The shape mustbe easily fillable with concrete.

Honeycomb Segments
All pieces are the same shape,
which is ideal for automating
Inner surface of a segment

assembly and reducing labor.
All corners are 120°, which

Honeycomb Segment Structure
Oblique joint bolt

Face side

Plug/Socket

minimizes concern over sealantConvexsocketleakage during assembly andSegment joint

creates a highly watertightPre-attached horizontal cottersand other one-pass joints

structure. Bolts span the obliquesides of the segments, whichenables them to flexibly absorb

Steel with seal grooves
Main steel material
Members that help the concrete bear the
cross-sectional forces of the main body

Concaveplug

ConvexRing joint
One-pass joint

Installing steel with seal grooves in
the corners of the segment crosssections creates crack- and defectresistant, watertight structures.

Concavelongitudinal distortion, making
tunnels extremely earthquake
Surface of a segment joint

resistant.
(JICE Technological Development

ConvexConcave
Shaft entranceside

Insert anchor

Plug/Socket
between rings

Grand Prize)

7

8

Segment Business

Segment Business

Push Grips

Push Grip 2

Hook Joints

Horizontal Cotter Joints

Pin joints that fasten segment rings together. During assembly, pin bolts push

Pin joints that fasten segment rings together. As non-return pins on the male side are inserted, they push

Segment joints with simple structures that comprise a combination

Segment joints that compriseagainst and expand wedges as they are inserted. The serrations on the surfaces ofagainst and expand pressure-bearing locking parts supported by flat springs. The joints fit together when theof steel materials. The metal fixtures of the joints are also easy to

C-type metal fixtures, anchors,

the pin bolts cut into the wedges to maintain proof stress against drawing tension.

reactive force of the flat springs causes the locking parts to mesh with the concave parts of the non-return pins.

manufacture and attach. These joints are also compatible with thin

H-type metal fixtures, and backup

segments. Simply slide segments in the direction of the tunnelmaterials. Fastening is completed

axis to complete the fit. The joints are also compatible with SSPC

by sliding in the direction of theand composite segments.

tunnel axis. The backup materials

Male side

Female side

Serratedsurface Wedge

Anchors

Urethane spring

Anchors
Cap nut

Flat
springs

AnchorC-typemetal
fixtureBackup material
H-type metal
fixturecan maintain the fastening force,Non-returnpinwhich is effective in tunnels under
Pressure-bearing
locking part
Before fittinginternal water pressure.
During fitting(JICE Technological Development

After fitting

Recognition Award)

Pin bolt

C-type metal fixture

Urethane caseAnchorHook joint fitting

TS Joints

Exfoliation Prevention (EXP) Segments

Cone Connectors

Beam Structure (BEST) Joints

Segments designed to prevent concrete from exfoliating. Lining

Segment joints that complete a fit when male metal fixtures are inserted into female metal

The most proven bolt connections among segment joints. The metal fixturesby using 60 mm-square steel on the joint surfaces, which accommodates

the inner surfaces of segments with alkali-resistant glass fiber

fixtures. The complete lack of bolts and the smoothness of the inner surfaces acceleratefeature a ductile structure that integrates the anchors with the smallest cross-low clearance. The joints comprise square pipes as well as cut length plates,

sheets as the segments are manufactured removes the need toconstruction work and eliminate the need for inner lining work.

section that provides the required strength. The same metal fixtures can besprings, pins, and other members that are simple to manufacture.

install textile sheets after segment assembly.

Tough and Smart Joint

Pin joints that fasten segment rings together. We achieved the compact size

ExfoIiation Prevention Segment

Beam Structure Joint

used for both single- and double-tier bolts. Cushioning is affixed to the metal
fixtures to prevent cracking.

Lockingpart

Anchors

Joint metal fixture (bolt box side)

Flat spring

Cushioning
AnchorCone connector joint(female metal fixture)
Squarepipe

Pin…Female side
…Male side

Cone connector joint (male metal fixture)

Bolt hole
Joint metal fixture (insert side)

Grout Bag Segments

P & PC Segments

Three-Dimensional Measuring Instruments

Segments that can prevent groundPC steel is inserted into sheaths

In the past, segments were measured using slide calipers or inspection fillet gauges, which required a lot of time and effort. To improve thesubsidence during construction work onembedded in segments and thensituation, we introduced a three-dimensional measurement system that enables rapid measurement and substantially reduces labor.

curved sections. After assembly, grout istensioned in order to prestress theinjected into bag-shaped sheets embedded

segments. This makes it possible toin the outer surfaces of the segments,

reduce the weight of the reinforcement

which causes the sheets to expand.

bar and member thickness in segments.

High Durability (HD) Tunnel Lining

High Durability Tunnel Lining

Compact Segments

Highly-durable segments with resin

Four-partition, three-hinged segments

panels or resin coating on the innerintegrated with grooved innersurfaces. The lining eliminates thelining. The three-hinged, staticallylayer susceptible to corrosion, anddeterminate structure is highly stable,

segment thickness can be made thin.

and the lower number of partitions
shortens segment assembly time.

9

10

Civil Engineering Business

Civil Engineering Business

Civil Engineering
Business

Tunnel Floor Slabs/Center Walls
In addition to floor slabs
constructed inside shield

Civil Engineering Businesstunnels, we provide a variety
of precast products, from

We offer a variety of construction methods that shorten schedules,

pipe supports inside utility

and various products that are essential for maintenance and extending

conduits and diversions

the lives of structures.

in sewers to center walls
used as vertical partitions forstoring rainwater.

Bridge Deck Slabs/Roadbed Panels
Precast Concrete Lining (PCL) Method〈 Image of Construction 〉

Precast Concrete Lining

A lining method in which precast
RC slabs are used to finish, repair, or
reinforce the inner surfaces of tunnels.
Our proprietary machinery assembles
slabs that comprise the two parts of theupper halves of tunnels, which makes
the work safe and quick. This highly
reputable method has been used inmany road and aqueduct tunnels.
●〈 Applications 〉

ARIC Registration 314

PC Walls

Precast Concrete wall

A construction method in which precast RC slabs areused to finish the inner surfaces of tunnels. Slabs are
divided into multiple parts according to the construction
conditions, and can be assembled using our proprietary

Road bridges

PiersRoad surfaces

work safe and quick. This method has been used to
repair the inner surfaces of railway tunnels, as decorative〈 Structures 〉

PC Slabs (HSL Slabs)

machinery or without any machinery, which makes theformwork of the inner linings of aqueduct tunnel

RC Slabs

Composite Slabs

convergences, and in a variety of other situations.

Parapets

HOP Blocks

Precast RC parapets forPrecast RC medians with unique

improving the railing of bridges

anchor structures capable ofon local railway lines. Our use

withstanding collision forces atof a ribbed structure makes theexpressway speeds. HOP blocks

panels lighter, thinner, and easierare not only safe, but easy toto handle on work sites. Because

work with in the construction

they are molded concrete, thestage and very cosmeticallyparapets can be made into

appealing. They can also be used

Slabs made of prestressed concrete pretensioned perpendicular to theUsed to reduce labor by shortening

Precast composite slabs used to replace the decks ofbridge axis. This category also includes HSL slabs with reduced weight

construction schedules. The use of high-steel girder bridges. Pipe dowels welded to the steel

due to the use of high-strength lightweight concrete.

quality, high-strength, factory products canplates on the bottom surfaces of the slabs integrate the

HSL Slabs: Acquired Construction Technology Review andfurther improve durability.

plates with the concrete poured on the top surfaces.

virtually any shape, size, andfor green belts, safety barriers,

Certification (for civil engineering materials, products, technology,

The steel plates are the main structural members;

design, and can be used in all

and parapets.

and road maintenance technology) No. 0313 (Public Works Research

therefore, composite slabs can be made roughly 40

conditions.

Center)mm thinner than RC slabs.

●

11

12

Civil Engineering Business

Civil Engineering Business

Under Railway Tunneling (URT) Method

Pre-Cast Arch Tunnel Method (PC-ATM)

Under Railway Road Tunnelling Method

A tunneling method in which shafts are dug on each side of a railway or road, and steel elements are inserted along the edges of the required
tunnel cross-section to function as the lining of a box-shaped hollow. This economical method cuts down on auxiliary work and has been used totunnel beneath many Shinkansen lines and expressways while they are in operation.

A method of constructing arch culverts through the on-site assembly of arc-shaped precast concrete products, two of which form a transverse tunnel
section. It is used for crossing structures, open-cut tunnels, arch bridges, tunnel entrances and more, and is compatible with severe conditions such as
steep slopes, high embankments, and large sections.
●Upper slab element

Pre-Cast Arch Tunnel Method

NETIS Plus Registration Number ：ＡＣ−１５０００７−Ｐ

Corner element

Sidewall element
Lower slab element(1) Completion of element
outline tunnelingInsertion of PC steel(2) PC steel tensioning
First concrete injection(3) Second concrete
injection(4) Excavation of tunnel
interior

Closure element

PC cable(1) Erection of first half-archusing supports(2) Erection of second andsubsequent half-arches

Sandwich Slabs

RC Drainage Well Construction Method

Steel concrete composite slabs used as the upper slabs of box culverts. Pipe dowels welded to the steel plates installed

A method of constructing drainage wells using

atop and below the slabs integrate the plates with the concrete. This design removes the need for the earth covering

steel shoes and RC segments. The ability torequired for conventional box culverts, and the slimmer upper slabs decrease the final heights of road surfaces. The ability

choose between the self-sinking method andto reduce embankment volumes of entire roadways has substantially reduced costs.

the inverted lining method makes it possible to

NETIS Registration Number ：ＨＫ−１４０００４−Ａchange the construction method midway through●(3) Construction using
proprietary movablescaffolding

drilling, and to drill safely, reliably and rapidly down
Sidewall anchors
Level difference
correction plateto the planned depth of the well. RC segments

Sandwich slab
Upper surface
splice plates

Concrete input pipe

can withstand earth pressure better than steel
segments due to their greater sectional force;
thus, this method has been used quite often to
drill drainage wells over 50 m deep.

SidewallSeal rubber
High-strength bolts

Lower surface
splice plates

SidewallPipe dowels【 Characteristics of Box Culverts 】

Minimum earth
covering: 50 cm

Reinforced concrete
upper slab

Elliptical Joint Strips for Jumbo Reefs

Sidewall anchors

FH decreases
approximately 1 m

Pavement: 8 cm

Sandwich slab

Precast RC is assembled to make these large

These elliptical joint strips are madereefs, which are outstanding at attracting fishof mortar and used in the newin addition to being highly durable and practical.

construction and improvement of

The jungle-oriented structure enhances the

airport parking aprons and taxiways.

fish attraction effects, and the triangular shape

The product is shaped by pressing

provides balanced weight distribution and

it into an elliptical steel mold, whichmakes the structure extremely stable. The
Reinforced concrete upper slab box culvert

Sandwich slab box culvert

straightforward member structure makes these
reefs easy to assemble.

13

Elliptical Joint Strips

creates an exterior that is extremelysmooth and conducive to sliding.

14Building Business

New Business

Building Business

New Business

Through the combination of past performance and cutting-edge

We use various technologies that have contributed to social infrastructure for over 50 years and the technology of thetechnology, our building business exists to construct forward-looking

IHI Group in various fields to promote further technological development. We intend to contribute to society with new

facilities.

business that will sustain us into the next generation and satisfy the needs of society.

Noise Barriers/Landscape Walls
Environmental equipment has become important to the areas around thermal power plants because the liberalization of electricity has resulted in the appearance of manysmall, private plants in addition to corporate plants. In addition to conventional GRC, which is highly reputable for its light weight and sound insulation properties, our diverse
array of noise barriers using composite materials are also quite popular for reducing various types of noise, protecting equipment, and preserving the environment.

Research and Test Center

Neutron-Shielding Concrete

The Research and Testing Center

Adding colemanite creates

functions as our research andneutron-shielding concrete thatdevelopment department. Since its

can block neutron beams. This

inception in 1976, the Research andconcrete can fulfill the vital role

Testing Center has constantly dealt

of a shield protecting humanwith the latest themes and produced

bodies from various radiation

numerous achievements. We willused at nuclear power facilities

continue to meet the challenge toand facilities that conduct

develop better products while

research on advanced medical

responding to the needs of the times.

care, matter, and life.

Heavyweight ConcreteRadioactive Waste Storage Containers

Using high-unit-weight concrete with

The steel and concrete composite

a density 3.8 or higher as a radiation

structure with steel plates on the innershield makes it possible to effectively

surfaces and the double-barrier structure

use limited space and deliver the same

create a highly watertight, durable

effects as ordinary concrete even whenstructure that prevents the leakage ofwall thickness is reduced. Heavyweightradioactive materials. Our containers

We provide all services required for everything from the detailed

concrete can serve as a radiation shieldstore waste safely and securely for longdesign to the manufacturing, coating, delivery, and even overseas

at nuclear power facilities, medical careperiods of time, and can be moved. We

transport of various structures of environmental facilities for power

facilities, research facilities, and more.

offer large-capacity box-type containers

Plant Materials

plants, including smoke tunnels, silencers, pipe racks, floor units

as well as drum-type containers for easier(blocks), conveyor bridges for connecting boilers and various tanks,

handling.

stairs, and corridors.

Eco-Friendly Concrete

High-Rise Building PC

Amid growing awarenessOur precast concrete productsof CO2 emissions, we haveare fully imbued with thesuccessfully developed eco-production history of various

friendly concrete. This concrete

high-strength concrete withproactively uses industrial

compressive strength greater

energy plant infrastructure comprises offshore elements (design,waste with a special admixture,than 150 N, and meet the

management, guidance, and contracts) and onshore elements

which reduces the cement

stringent construction speed(manufacturing, inspections, maintenance inspections, and the likeusage volume to an extent

and quality demands ofin the country of delivery).

possible to substantially reduceskyscrapers and other highly

CO emissions.

advanced buildings.

International BusinessWe are searching for new end users in Southeast Asia and therest of the world. Our business related to the construction of

15

Low-energy neutron flux (relative values)

Building Business

New Business

Neutron-shielding concrete (experimental values)
Neutron-shielding concrete (calculated values)
Ordinary concrete (calculated values)

Depth from concrete surface (cm)16

Sapporo Sales
Office
札幌営業所

Company Profile

66

55

Head Office, Branch, Sales Office, Plant
Group companies

Company NameIHI Construction Materials Co., Ltd

Established

December 1974

Capital

495 million JPY

Head Office
Location

Ryogoku City Core, 2-10-14 Ryogoku, Sumida, Tokyo 130-0026, JAPAN
TEL:+81-3-6271-7211/FAX:+81-3-6271-7299

Representative

Hirohide Hashimoto, President

Business
Description●●

Subcontractors

Business related to the design, manufacture, sale, rental,
installation, and repair of concrete products, civil engineering /construction materials, prefabricated structures, and civilengineering / construction machinery and tools

3 Chubu Segment Co., Ltd.

●Business related to consulting on the business described above●

Any business related to or incidental to the items above

4 Livecon Engineering

5 Kushiro Seisakujo

Head office/1-8-8 Kajicho, Chiyoda-ku,
Tokyo 101-0044

Plant/
9-19 Kawakitacho, Kushiro,
Hokkaido Prefecture 085-0003

6 AIZAWA Concrete

7 Shinwa Segment

Shinwa Concrete Co., Ltd.

Plant/
2-2 Koeicho, Ebetsu, Hokkaido
Prefecture 067-0051

Head Office & Plant/
583 Hōonji, Minamiuonuma,
Niigata Prefecture 949-7133

Koken Sangyo Co., Ltd

Nalux Corporation

Head Office & Plant/
4610 Manzawa, Nanbu-cho
Minamikoma-gun, Yamanashi
Prefecture 409-2103

Business related to the design/execution of civil engineering andconstruction work

7 8Co., Ltd.

Co., Ltd■ SendaiSales■ 仙台営業所

8
9 7

Office■ 大阪支店■ Osaka
Branch姫路事業所■■Himeji
Office1215■ 福岡営業所■ Fukuoka
Sales Office

11
14

16

12
13

10

17

22

1
4

Corporation

1

Head Office
本社■■Research
and Test Center
研究試験センター

10 Kita-kanto Plant/
838-3 Shimokobashi, Sakai-machi,
Sashima-gun, Ibaraki Prefecture 306-0432
Kanagawa Plant/

Ibaraki Dai-ichi Work3347-1, Aso, Namegata,
Ibaraki Prefecture 311-3832
Site Area
TEL : +81-299-72-0851
Building Area 53,500㎡(including yard)
Stockyard 9,000㎡
129,300㎡(Shared by Ibaraki Dai-ichi Plant / Ibaraki Dai-ni Plant)
Location

17

1

Ibaraki Dai-ni Work2744-3, Aso, Namegata,
Ibaraki Prefectre 311-3832
Site Area
TEL : +81-299-72-3336
Building Area 51,600㎡
Stockyard 6,000㎡
129,300㎡(Shared by Ibaraki Dai-ichi Plant / Ibaraki Dai-ni Plant)
Location

8 Koide Plant/

2262 Tokamachi, Uonuma,
Niigata Prefecture 946-0035

9Muikamachi Plant/
29298 Nishiizumida, Minamiuonuma,
Niigata Prefecture 949-6615

2

12Inabe Factory/
1040 Nagafuke, Toin-cho, Inabe-gun,Mie Prefecture 511-0255

14 IGAWARA SANGYO

CO.,LTD.

Head Office & Factory/
213, Ibogawachō, Shōjō, Tatsuno,
Hyōgo Prefecture 671-1621

11 4-19-21, Tanashioda, Chuo-ku, Sagamihara,

13 Hironaga Factory/

15 SHOWA CONCRETE INDUSTRY CO. ,LTD.

16 SHOWA CONCRETE INDUSTRY CO. ,LTD.

17 SHOWA CONCRETE INDUSTRY CO., LTD.

Plant/
361-4, Tsuchiyamachō Ichiba, Kōka,
Shiga Prefecture 528-0233

Plant/
60, Shisuimachi Yoshidomi, Kikuchi,
Kumamoto Prefecture 861-1201

Kanagawa Prefecture 252-0245

1Co., Ltd.

■ 名古屋支店■ Nagoya Branch

13

Plant Outline

33

10
11
9 4
11

35 Koganechou, Yokkaichi,
Mie Prefecture 512-8062

Shizuoka Work90, Ouke, Shimada, Shizuoka
Prefecture 427-0013
Site Area
TEL : +81-547-36-1155
Building Area 35,100㎡
Stockyard 4,200㎡
13,500㎡
Location

Ibigawa Work

Plant/
2537-16, Nakanoshima, Inadomi, Ono,
Ibi District, Gifu Prefecture 501-0501

Shiga Work

Kumamoto Work18