Physics:Engineered cellular magmatic

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Shows an ECM bio-lattice for air filtration
ECM bio-lattice for air filtration
Shows an ECM from waste glass
Microscopy of an ECM upcycled from waste glass.
Shows an ECM made from municipal solid waste incinerator ash
Microscopy of an ECM produced from municipal solid waste incinerator ash and carbon fiber waste.
SEM image of zeolite crystals on an engineered cellular magmatic
SEM image of zeolite crystals on the cell wall of an engineered cellular magmatic.

Engineered cellular magmatics (ECMs) are synthetic stone of glass and ceramic. ECMs replicate rare, naturally occurring volcanic materials,[1] and exhibit useful structural and chemical properties of those materials. The US Department of Energy has recognized ECMs as an advanced material, funding further research into the manufacture and application of ECMs through ARPA-E and Savannah River National Laboratory.[2][3]

Properties

ECMs can be engineered to include a broad range of silicate species, with various reactivity. Their physical structure can range from closed to open cell, resembling pumice or porous ceramic. They can be composed of internal pore and vesicular structures with individual cross sections that can measure from millimeter down to nanometer scale. Open cell varieties exhibit extensive surface areas which amplify ion exchange capabilities (both cationic and anionic). These features make them well suited for various cement construction [4] filtration[5] and remediation applications. They typically contain both amorphous and crystalline structures.

Application

Known uses for ECMs include air and water filtration,[6][7] biological and chemical remediation, microbial habitat, soil and cementitious amendments.[8] They can also be used in the manufacture of various forms of zeolite due to the resulting silicate lattice,[9] and in various reactors for chemical separation. They meet and exceed the ASTM Standard Specification for Lightweight Aggregates for Structural Concrete, and exceed ASTM standards for vegetative green roof media.

History

ECMs share a history[10] with foam glass,[11] but are engineered for specific chemical reactivity and structural properties not generally considered the domain of foam glass. The term engineered cellular magmatic was adopted to describe the material in late 2019 by inventor Robert Hust.[12] Other named inventors include Gene Ramsey,[13] Cory Trivelpiece, Gert Nielsen, and Philip Galland.

Manufacture

ECMs can be manufactured from raw materials (minerals with high silica content) and a range of waste and recycled materials that, by their utilization, represent significant savings in both energy and carbon emissions. ECMs have been successfully created utilizing various waste streams, upcycling glass waste, municipal incinerator waste ash, carbon fiber waste, and wastes from various types of mining. The production process is similar to that of sintered foam glass or ceramics, consisting of 1) grinding the input materials to a powder, 2) firing the material at various levels of thermal exposure (500º - 2000 °C) as it 3) travels through a 36-meter (120 ft.) long furnace.

See also

References

  1. ↑ "What the Ancient Romans can teach us about building eco-friendly structures that stand the test of time" (in en). https://fortune.com/2021/02/16/eco-friendly-concrete-green-building-ancient-rome-materials/. 
  2. ↑ "Self Sustaining Cementitious Systems – Roman Reactive Glass Concretes". https://arpa-e.energy.gov/technologies/projects/self-sustaining-cementitious-systems-roman-reactive-glass-concretes. 
  3. ↑ "Innovating Through Unconventional Ideas - WiX Awardees". https://arpa-e.energy.gov/news-and-media/blog-posts/arpa-e-innovating-through-unconventional-ideas. 
  4. ↑ "ASTM C330 / C330M - 17a Standard Specification for Lightweight Aggregates for Structural Concrete". https://www.astm.org/Standards/C330.htm. 
  5. ↑ "ASTM E2399 / E2399M - 19 Standard Test Method for Maximum Media Density for Dead Load Analysis of Vegetative (Green) Roof Systems". https://www.astm.org/Standards/E2399.htm. 
  6. ↑ Apkar’yan, A. S.; Gubaidulina, T. A.; Kaminskaya, O. V. (2015-03-01). "Foam-Glass Ceramic Based Filtering Material for Removing Iron and Manganese from Drinking Water" (in en). Glass and Ceramics 71 (11): 413–417. doi:10.1007/s10717-015-9700-z. ISSN 1573-8515. https://doi.org/10.1007/s10717-015-9700-z. 
  7. ↑ "Technology Screening Matrix | Federal Remediation Technologies Roundtable". https://frtr.gov/matrix/Air-Stripping-Ex-Situ/. 
  8. ↑ "Cementitious systems in Roman reactive glass marine concretes, Conference: Materials Science & Technology MS&T20". ResearchGate. November 2020. https://www.researchgate.net/publication/341412956. 
  9. ↑ Håkansson, U.; Fälth, L.; Hansen, S. (1990-08-15). "Structure of a high-silica variety of zeolite Na-P" (in en). Acta Crystallographica Section C: Crystal Structure Communications 46 (8): 1363–1364. doi:10.1107/S0108270189013260. ISSN 0108-2701. Bibcode: 1990AcCrC..46.1363H. http://scripts.iucr.org/cgi-bin/paper?S0108270189013260. 
  10. ↑ "Cellular Ceramics: Structure, Manufacturing, Properties and Applications | Wiley" (in en-us). https://www.wiley.com/en-us/Cellular+Ceramics%3A+Structure%2C+Manufacturing%2C+Properties+and+Applications-p-9783527313204. 
  11. ↑ "Foam glass | chemical compound" (in en). https://www.britannica.com/science/foam-glass. 
  12. ↑ "Robert Hust". https://patents.justia.com/search?q=robert+hust+-snmp. 
  13. ↑ "W. Gene Ramsey". https://patents.justia.com/inventor/w-gene-ramsey. 



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