First to Bring Asphalt Emulsion to Japan
Taiheiyo Boeki corporation, the forerunner of Toa Road Corporation, was the first company to introduce asphalt emulsion in Japan.
The low cost pavement using asphalt emulsion quickly gained favor and facilitated the early recovery from the devastating 1923 Great Kanto Earthquake.
Launched in 1930 for Emulsion Production and Sales
Founded as a joint venture with a U.S. company in 1930, we have started manufacturing and selling asphalt emulsion. With rising demand of paved road, we have expanded into road construction business.
Transportation Infrastructure in Japan
Riding a wave of economic boom through the years in Japan, we have expanded road construction and public works business. The roads and expressways we've built across Japan are a vital part of the country's transportation infrastructure.
Multi-Function, High-Performance and Eco-Friendly
The Requirements for road function is changing to "Multi-Function", "High-Performance" and "Eco-Friendly" from before "Convenience only", and the Requirements for maintenance and inspections also become increasing.
Constructions and Products should follow this Background.
Bitumen Treated Road
ASO Mountain Road in 1956
Tokyo International Airport “HANEDA”
in 1959
Meishin Expressway in 1963
Tohoku Expressway in 1973
Kyushu Expressway in 1973
Chugoku Expressway in 1981
Nakayama Racecourse
Port of Nagoya Toyota export base
Yokohama Bashamichi mall
Metropolitan Expressway,
Yokohama Bay Bridge in 1989
Osaka International Garden
and Greenery Exposition in 1990
Developed "Permi-binder"
for porous asphalt pavement in 1990
Chuo Expressway in 2000
Earthquake disaster restoration
work in 2011
East Kyushu Expressway in 2013