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Exhibition Information : CSPI EXPO

A specialized exhibition that brings together state-of-the-art technology products and services that will lead the construction and surveying industry to the next generation.

Title : Construction and Survey Productivity improvement
Dates : April 22(Wed) ~ April 24 (Fri),2020
Venue : Makuhari Messe, Japan
Exhibited products :
・Drilling machine ・Transport machinery ・Leveling machine ・Road machinery ・Tunnel machinery
・Small construction machinery ・Yumbo / Backhoe ・Construction work machine ・Shovel / Bulldozer
・Crane ・Aerial work platforms / aerial work platforms ・Trucks and trucks ・Power system attachment
・Cargo handling / transportation equipment / loading equipment ・Ground improvement machine
・Vibrating rammer / vibrating plate ・Road maintenance ・Safety and security materials ・Trucks
・Commercial vehicles, rental cars, vehicle machinery  ・Aerial work platforms / aerial work platforms
・Scaffolding / hanging scaffold ・Cargo handling / lifting machine  ・compressor
・Temporary equipment and common temporary products ・Generators, welding machines, lighting equipment
・General-purpose machine ・Concrete equipment ・Small general-purpose equipment ・Heavy equipment
・Piping equipment ・House and equipment ・Communication equipment and measurement equipment
・Pollution removal / environment related ・Pile cutting machine ・Temporary materials and equipment
・Season products ・Agricultural Machinery / Contra Environmental Cycle Machinery
・Measuring and weighing equipment ・Construction technology and construction methods ・Construction ICT
・NETIS products ・Drone ・Surveying instrument ・Measuring instruments and applied measuring instruments
・Computerized construction equipment ・3D measurement equipment ・Video equipment ・Application
・IT / Program / Programming ・Consulting ・Recruitment
・Other products and services related to construction and surveying

Japanese earthquake-resistant technology

In Japan, the Building Standards Law has been strictly reviewed every time a large earthquake occurred in the past. Therefore, it is said that the collapse rate of Japanese buildings when hit by a large earthquake is extremely low compared to other countries.

Construction method for protecting buildings

Earthquake-resistance < Vibration control < Base isolation system

base isolation sysytem

In Japan, where there are many earthquakes, it has been reported that the performance of base isolation is higher than the other two for each major earthquake. (Although the cost of seismic isolation will of course be higher) Today, more than 4100 base isolation sysytem buildings have been constructed.

Representative base isolation building

The National Art Center The National Art Center The National Art Cener
Location : Roppongi, Tokyo
Construction year : 2006
Designer : Kisho Kurokawa
Suitengu Suitengu Suitengu
Location : Ningyocho, Tokyo
Construction year : 2016
Designer : Takenaka Corporate
Tokyo station Tokyo Statiton Tokyo Station
Location : Chiyoda-ku, Tokyo
Construction year : 2012
Designer : East Japan Railway Company,etc.

Concrete production in Japan

Japan is blessed with mines that produce high quality limestone, and the raw materials for cement production are 100% domestic.
Quality of concrete tend to depending on the method of construction and management.
Carefully made concrete can exhibit excellent durability, but if you make a mistake in the method, it will be inferior.

New concrete : “Eien” product life is 10,000 years
"Eien" is a precast concrete jointly developed by KAJIMA CORPORATION with other companies.
“EIEN” is made by mixing special materials with concrete. The surface of Eien reacted with carbonate ions is very smooth. This smooth surface prevents groundwater and salt penetration. And it improves the durability of concrete.
(The concrete of ancient Rome existed now are believed to have been healthy for thousands of years because of their chemical stability through carbonation. "EIEN" is a technology that reflects the results of ancient concrete surveys in modern cutting-edge concrete technology.)

"Shell-type bench" = 3D printer x concrete
In December 2019, OBAYASHI CORPORATION completed a huge shell-type bench using cement-based materials with a 3D printer. The design of the shell-type bench takes advantage of the features of the 3D printer and incorporates curved surfaces and hollows. And approximately 50% lighter by topology optimization. (Size : 7m wide, 5m deep, 2.5m high)

Shell-type benchShell-type-benchShell-type-bench

"Zero Shrink" = Concrete with a Superior Appearance
The causes of concrete cracks and water leakage is its property of shrinkage as it dries after hardening.
Zero Shrin developed by SHIMIZU CORPORATION is a type of concrete with an ultra-low degree of shrinkage that reduces net shrinkage to zero.
Zero Shrink not only prevents shrinkage when drying to the extent possible, it makes up for the minimal unavoidable shrinkage in advance by the initial expansionary effect of an expansive additive.

※Earthquake resistant technology tour
Earthquake resistant technology in Japan

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Exhibition Tour in Tokyo

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