Is it currently used outside construction?
Yes. Portland cement is used to clean up contaminated land, stabilise radioactive waste, make Turner Prize-winning sculptures and even (mixed with a little bismuth oxide) by your dentist to help seal up your root canal after surgery. Cements based on calcium and aluminium oxides are used in high temperature processes such as metal refining. Cements made from calcium and phosphorous – the elements that make up your bones and teeth – are used by surgeons. The Russians have even used cement to make it rain…
