Abstract
This paper explains that in the field of concrete, which occupies an important position with regard to sustainable construction, a framework for the active use of environmental labels has been instituted in Japan like in a number of other countries. Focusing particularly on ready-mixed concrete, this paper reports first about the high level of interest in sustainability at the ERMCO 2015 Congress, and goes on to introduce Japan's JIS environmental label system, which is consistent with that of the ISO. This is followed by an explanation of the framework for the use of the materials sanctioned by JIS A 5308 as recycled materials, including use of the Möbius loop symbol adopted in the latest revision of the JIS standard for ready-mixed concrete. Along with the precast concrete products industry, the ready-mixed concrete industry is stepping up its contributions to sustainable construction across the entire field of concrete through the voluntary use of environmental labels.
