Date: 2017-07-16 08:20 am (UTC)
From: [personal profile] eub
James linked to this one from 2014:
https://archaeologynewsnetwork.blogspot.ca/2014/12/secrets-of-roman-concrete-revealed.html
which likewise says "it's the volcanic ash", but they have different minerals as the important consequences. -- or maybe not so much, str├Ątlingite and aluminum tobermorite are both calcium aluminum silicates

The newer work seems to be specifically about reaction with seawater, the older work about toughness by impeding crack propagation.

Profile

james_davis_nicoll: (Default)
james_davis_nicoll

September 2017

S M T W T F S
      1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 2223
24252627282930

Most Popular Tags

Page Summary

Style Credit

Expand Cut Tags

No cut tags
Page generated Sep. 23rd, 2017 12:16 am
Powered by Dreamwidth Studios