Oh, it’s definitely interesting.
I think people here just got rubbed the wrong way because these articles often make it seem like Roman concrete is better than ours, rather than “look what they accidentally did occasionally”.
We can make self healing concrete today, we just usually opt not to, because the downsides or unpredictable nature makes it unsuitable for the significant cost increase.
The phrase “the bridge is infested with bacterial spore colonies” isn’t one that makes engineers happy.
Changes the torque and the application of said torque for each bolt. As in “tool head has 5° of give until in place, then in ramps torque to 5nM over half a second, and holds for 1 second and then ramps to zero over .1 seconds”, and then something different for the next bolt. Then it logs that it did this for each bolt.
The tool can also be used to measure and correct the bolts as part of an inspection phase, and log the results of that inspection.
Finally, it tracks usage of the tool and can log that it needs maintenance or isn’t working correctly even if it’s just a subtle failure.