Keeping that up for 10 years would be quite an accomplishment. 8% of global co2 emissions are from concrete, so learning small tricks from the romans could have a big impact. From the article: They directly used quicklime in the concrete so there are lots of little white specks of it. if there are any microfractures, they pass through the quicklime deposits, and then when it rains, it melts and reforms the lime to close the crack.
I wonder if limestone in the concrete would withstand months and months and months and months of cold temperatures. Asking for everyone in Canada.