2 ms·
Instead of stainless steel coated rebar, someone needs to start a startup that rediscovers the Roman "self-healing cement" formula that uses lime or something
by pmarreck 1y ago
Instead of stainless steel coated rebar, someone needs to start a startup that rediscovers the Roman "self-healing cement" formula that uses lime or something
- 0xbadcafebee 1y agoThey already did. It's just a more expensive formulation of concrete. In general you use a mix of concrete that's as cheap as you can afford, and tuned to the specific engineering requirements of that concrete structure. (We mostly use concrete because it's cheaper than alternatives)
- guywithahat 1y agoI’m pretty sure the secret to that was not inventing 4-ton vehicles. Plus there were some benefits to saltwater for construction near the ocean and some of the local soil/volcanic ash had beneficial properties, but vehicle weight was the biggest factor as far as I’m aware
- amluto 1y agoI doubt that the magical Roman concrete has any appreciable tensile strength. Sometimes reinforcement is not optional.