Posted: Jul 05, 2017 9:42 am
by tuco
From the article:

It’s one thing to assemble the ingredients, another to know how to bake the cake.


The Romans mined a specific type of volcanic ash from a quarry in Italy. Jackson is attempting to recreate this durable concrete using San Francisco seawater and more abundant volcanic rocks. She has several samples sitting in ovens and jars in her lab, which she will test for evidence of similar chemical reactions.