Episode 60: Marie Jackson talks about the amazing endurance of Roman concrete

Why is it that modern marine concrete structures crumble and corrode within decades, but 2,000-year-old Roman piers and breakwaters endure to this day? Episode 60 of STEM-Talk features Dr. Marie Jackson, a scientist who has spent the past two decades figuring out the answer to that and other questions about the durability of ancient Roman mortars and concretes. Marie is a research associate professor in the department of geology and geophysics at the University of Utah. She is known for her investigations in pyroclastic volcanism, mineralogy, materials science, and archaeological science that are breaking new ground in understanding the durability and specialty properties in ancient Roman mortars and concretes. She is particularly focused on deciphering Roman methods and materials in the hope of producing innovative, environmentally friendly cementitious masonry products and nuclear waste storage materials that would benefit the modern world. She was the lead principal investigator of a drilling project in the summer of 2017 on the Surtsey Volcano, which is on a small isolated island off the coast of Iceland. The volcano is growing the same mineral cements as Roman marine cement and the drilling project is helping provide extraordinary insights into the materials and processes the Romans used. She is particularly focused on deciphering Roman methods and materials in the hope of producing innovative, environmentally friendly cementitious masonry products and nuclear waste storage materials that would benefit the modern world. She was the lead principle investigator of a drilling project in the summer of 2017 on the Surtsey Volcano, which is on a small isolated island off the coast of Iceland. The volcano is growing the same mineral cements as Roman marine cement and the drilling project is helping provide extraordinary insights into the materials and processes the Romans used. After receiving her bachelor of science in earth sciences from the University of California Santa Cruz, Marie traveled overseas and received a doctorate from the Universite de Nantes in France. She returned stateside and received a doctor of philosophy from John Hopkins University as well as a Ph.D. in earth and planetary sciences. Marie then went to work as a research geoscientist for the U.S. Geological Survey. After taking time off to raise a family, Marie joined the department of civil and environmental engineering at the University of California, Berkeley, as a project scientist. She stepped into her current position at the University of Utah in 2016. Links: Mechanical resilience and cementitious processes in Imperial Roman architectural mortar: https://www.researchgate.net/publication/270161645_Mechanical_resilience_and_cementitious_processes_in_Imperial_Roman_architectural_mortar Marie Jackson ResearchGate profile: https://www.researchgate.net/profile/Marie_Jackson Surtsey blogspace: https://surtsey50years.utah.edu  Show notes:  4:06: Dawn begins interview by mentioning Marie’s love of the outdoors as a child and asks her to talk about those days. 4:38: Dawn asks if Marie’s father, who was a geologist, contributed to her love of the outdoors. 5:11: Dawn asks what topics Marie was interested in while in high school. 5:44: Dawn mentions that when Marie went to college, she never envisioned herself as a scientist, but this changed in her junior year, when her interest in earth sciences took root. Dawn asks Marie to elaborate on how that happened. 6:27: Ken asks Marie what role, if any, her family’s ranch played in motivating her interest in geology. 7:22: Dawn mentions that after college Marie worked for a mining company for a few years, which enabled her to save enough money to travel to France, where she worked on a doctorate. She asks if this is how Marie ended up in northern Corsica, in the Italian Alps. 9:39: Ken asks about her transition back to the United States,