am not one for specifications, but if there is such a thing , and I thought I knew, green concrete should be specified to mean aggregate sources are from recycled chippings and on site stone binders or raw materials taken off secondary sources as demolition sites and recyclable waste grubs and so forth. if this is organised and done there can be opportunities to reduce hacking river beds and mining sand beds to provide the resources for concrete aggregates and rock work admixtures from primary natural sources.
i remain to be corrected for using this term.
huat lim www.zlgdesign.com
