There's been large improvement in cements specifically in the past few years. It can be recycled, enforced, and supplanted by other materials. Concrete sold to

There's been large improvement in cements specifically in the past few years. It can be recycled, enforced, and supplanted by other materials. Concrete sold today can be bought with an advertised lifespan of 100 years. If you replace a coal plant with a nuclear plant how many years would it need to be net carbon negative? What is the grams of CO2 / kWh of nuclear vs coal vs solar?