The crusher’s ability to sort the hydrated cement paste from the aggregates will enable cement producers to reuse it as a cement additive, and ready-mixed producers will be able to make new concrete with recycled aggregates/sand, thus allowing significant CO2 emissions reduction. The view is to make deconstruction concrete a resource, and to recycle 100% of it indefinitely. The other contribution is to use this technology to allow cradle-to-cradle works.