rude.dawg October 26, 2017 12:02 AM Irradiated by gamma rays, heh? Can it be called HULKcrete? Dan Marsh October 26, 2017 11:07 AM Strictly speaking, this is downcycling rather than recycling. Recycling would be making new plastic bottles from used plastic bottles. Also, how would this concrete be disposed of when the building is eventually demolished? Regular concrete can be recycled by crushing and grading it in to aggregates. Can that be done with this "plastic concrete"? notarichman October 26, 2017 11:19 AM does it make the concrete harder or softer? i'm thinking of using it for roads. any place that gets worn by abrasion. Douglas Bennett Rogers October 26, 2017 03:18 PM This could be valuable for nuclear waste storage. DaleBarclay October 26, 2017 05:40 PM No reason it could not be recycled. The plastic is ground to a powder. BanisterJH October 26, 2017 10:40 PM I wonder how adding the ground irradiated plastic compares to adding fly ash, silica fume or polyvinyl alcohol and whether it will additionally strengthen concrete that has also been strengthened using those other additions. pmshah October 27, 2017 04:18 AM I know of gamma rays being used in England for substantially extending shelf life of fresh produce. Just wonder why it is not more widely used and a lot of food is allowed to rot ! Don Duncan October 27, 2017 07:20 PM What concrete was used? Grancrete brags it is 500% stronger. And what is the cost of irradiation? I don't support any eco-measures that need subsidy. Doing so is asking to be scammed by politicians/business. See: Alternative energy. CoachFerg October 30, 2017 03:07 PM Plants love carbon dioxide. Water vapor is the real greenhouse gas. Let's do something about that. slarmas November 2, 2017 10:59 AM https://newatlas.com/cement-overlooked-carbon-sink/46569/ Would be funny if this caused the new found carbon sink mechanism to fail and make concrete once again a net producer of carbon rather than the new found carbon sink that it is now considered to be.