For foundations, lime stabilised soil has been used in civil engineering projects for a very, very long time: https://www.geoengineer.org/education/ground-impr

For foundations, lime stabilised soil has been used in civil engineering projects for a very, very long time: https://www.geoengineer.org/education/ground-improvement/lime-stabilization https://www.geoengineer.org/education/ground-improvement/lim... As for the rest, I was referring to buildings. I don't think anything is so worthy of being built that wrecking the environment is a fair trade. Railways are an honourable exception, since they displace (far more wasteful) cars. Light rail is especially good for this. The fact is that we need to question what we build, as well as the materials used to build it.