volcanic ash

Volcanic ash

Magma (24)
Volcanic ash (5)
Volcano eruption (10)

Synopsis: Environmental challenges: Environmental degradation: Cataclysmic event: Volcano eruption: Volcanic ash:

futurity_sci_tech 01076.txt

The recipe for Roman concrete was described around 30 BC by Marcus Vitruvius Pollio an engineer for Octavian who became Emperor Augustus. The not-so-secret ingredient is volcanic ash

whether volcanic ash would be a good large-volume substitute in countries without easy access to fly ash an industrial waste product from the burning of coal that is commonly used to produce modern green concrete.#

#Many countries don t have fly ash so the idea is to find alternative local materials that will work including the kind of volcanic ash that Romans used.

Saudi arabia has#mountains of volcanic ash#that could potentially be used in concrete Monteiro says. The Loeb Classical Library Foundation Harvard university and the Department of energy provided additional funding.

R_www.gizmag.com 2015 05047.txt.txt

#Biodegradable implant could simplify bone replacement surgery Combining cornstarch with volcanic ash clay to create a plastic for bone grafts could make the surgical process of bone replacement much simpler in the future.

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