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Welcome to Greener Concrete, LLC

GreenerConcrete.com
  • Home
  • Meet the Team
  • What is Zeolite?
  • First Low Carbon Pavers
  • Low CO2 Pervious Concrete
  • Low Carbon CMUs
  • Post Cure CO2 Absorption
  • Contact Us

Meet Our Team

Dan Uhm, MBA

Thomas Yang, MD, MBA

Thomas Yang, MD, MBA

President


Dan is currently focused on developing and supporting several renewable/clean energy projects and climate change initiatives. Dan is a graduate from the University of Washington with a degree in engineering. His professional career began with the Central Intelligence Agency, followed by Kyocera of Japan. Dan holds multiple U.S. and foreign patents in fiber optics. After receiving his MBA, Dan managed multimillion dollar international joint ventures and strategic corporate projects for Alcatel of France. Following a 10-year career with Alcatel, Dan founded a start-up company that became an industry pioneer for high resolution digital archiving of movie film. Dan is a Co-Founder and Managing Partner at Seattle Wealth Management.


Email: Dan@ZeoliteComposites.com

Thomas Yang, MD, MBA

Thomas Yang, MD, MBA

Thomas Yang, MD, MBA

Executive Vice President


Tom is a respected physician and has been practicing in the Seattle area for over 20 years caring for patients as well as performing clinical research with multiple publications. He completed his MBA from the Foster School of Business graduating with honors and is a Co-founder of Secure Med Info, Aztec Premium (AP brand), 4D Armor, Armor4Me (A4M brand), and AgriNutrient. Tom is Board Chair for Immanuel Children’s Foundation and has led several volunteer teams from UW to Guatemala to install off grid solar for remote villages.


Email: Tom@ZeoliteComposites.com

Dwayne Arola, PhD

Thomas Yang, MD, MBA

Dwayne Arola, PhD

Chief Technical Officer


Dwayne is a Professor of Material Science and Engineering (MSE) at the University of Washington and holds adjunct appointments in Mechanical Engineering, Restorative Dentistry and Oral Health Sciences. Prior to joining the faculty at Washington he was a Professor of Mechanical Engineering at the University of Maryland. Through his academic appointments he brings over 25 years of research and development experience focused on advanced engineering and natural materials.


EMAIL: Dwayne@ZeoliteComposites.com

Neil Amrhein

Thomas (Tom) Gilman

Dwayne Arola, PhD

Senior VP of Business Development


Neil is located in Seattle, WA and brings over 25 years of engineering, sales and startup experience to the task of improving the health of our planet. Neil graduated from Santa Clara University with a Mechanical Engineering major and Mathematics minor, and later graduated from Stanford University with a masters degree in Industrial Engineering and Engineering Management. He has held a wide variety of roles during his career, but current focus areas include funding, product development, market development and special projects.


EMAIL: Neil@ZeoliteComposites.com

Thomas (Tom) Gilman

Thomas (Tom) Gilman

Thomas (Tom) Gilman

Vice President & General Counsel


Email: TGilman@ZeoliteComposites.com

Brandon Lou

Thomas (Tom) Gilman

Thomas (Tom) Gilman

UW Research Lead


Brandon received his B.S. and M.S. in Materials Science and Engineering from the University of Washington. Having previously conducted research on algal biomass-cement composites, Brandon's background was an ideal match for the current  research being sponsored by Greener Concrete and Zeolite Composites. Brandon is pursuing his Ph.D. at the University of Washington to understand the role of clinoptilolite zeolite as a replacement for Ordinary Portland Cement (OPC) in concrete formulations. The goal of Brandon's research is to develop a technical understanding of the pozzolanic reactivity of natural zeolites, the long-term durability properties of zeolite-concrete composites, and the ability for zeolite to benefit biofouling and corrosion resistance.

D. Marcus Uhm

University of Washington

University of Washington

UW Undergraduate Research Assistant


Marcus is currently pursuing his undergraduate degree in Materials Science & Engineering at the University of Washington in Seattle. He graduated from Ingraham High School (class of 2023) with an IB Diploma and received several Academic Scholarships and is the recipient of many honors and awards for academic and scientific achievements. Marcus has travelled to Guatemala to work with student volunteers (from the University of Washington and the Clean Energy Institute) to donate and install solar panels/equipment on homes in remote off-grid Guatemalan villages. Marcus is on the zeolite composites research team at the University of Washington and is currently studying carbonation of cured zeolite composite concrete and is developing zeolite-based low carbon concrete formulations for 3D concrete printing applications.

University of Washington

University of Washington

University of Washington

  • Department of Materials Science and Engineering
  • Department of Civil and Environmental Engineering
  • University of Washington Tacoma

Zeolite Composites, LLC

University of Washington

Zeolite Composites, LLC

Smarter Solutions for Sustainable Change™


Zeolite Makes the World Better™


https://zeolitecomposites.com/

Priscila Carrijo

Priscila Carrijo

Priscila Carrijo

Technical Sales Manager


Priscila is a Field Engineer for a leading manufacturing company in the construction industry. She provides technical support to engineers, architects, contractors and internal sales teams. Priscila holds a Master’s Degree in Civil Engineering from University of Sao Paulo, Brazil and is fluent in Portuguese. Priscila is an expert in concrete formulations and properties.

Ken Lee

Priscila Carrijo

Priscila Carrijo

Manager of Public Relations


Ken is a veteran Marketing Executive with experience in publishing, publicity, and international sales. A graduate of the USC School of Business Management, Ken provides the team with unique creative talents and is responsible for public relations, investor relations, business development and marketing.

Mike Weiss

Priscila Carrijo

Nick Lambert

Senior Special Projects Manager


Mike brings significant experience in technology operations and engineering leadership to the team. Graduating with a degree in Japanese from San Francisco State University, Mike started his career in the Silicon Valley, building and managing the teams in charge of Hewlett Packard’s and Microsoft’s early internet datacenter operations. After a 20-year career at Microsoft, bringing products and services like Xbox and Hololens to market.

Nick Lambert

Eric A. Johnson, JD

Nick Lambert

Senior VP of Sales & Marketing


Nick has spent over 15 years as a Human Capital Management Consultant/Account Executive for enterprise organizations in the Pacific Northwest.  Nick has specialized in SaaS applications and outsourced services for helping organizations improve workforce efficiencies, mitigate financial risk, and improve talent acquisition and retention.  Nick graduated from Washington State University with degrees in Marketing and Communication.


EMAIL:  Nick@ZeoliteComposites.com

Jason Moon

Eric A. Johnson, JD

Eric A. Johnson, JD

Director of Public Relations and Media


Jason leads media strategy and public engagement at Zeolite Composites, bringing a cross-sector background in government, tech, nonprofit, and real estate. He serves as Vice President of the Mukilteo City Council and the National League of Cities Asian Constituency Group, and was recently appointed by Governor Furgeson to the Washington State Wildlife Diversity Advisory Council. A graduate of the University of Washington with a degree in Theatre and a minor in Communications, Jason also earned his MBA from UW, where he was chosen as commencement speaker. His previous roles at Amazon and Microsoft centered on inclusive storytelling, strategic partnerships, and customer engagement.


Email: Jason@ZeoliteComposites.com

Eric A. Johnson, JD

Eric A. Johnson, JD

Eric A. Johnson, JD

Financial Advisor


Eric has lived in Seattle his entire life and graduated from University of Washington law school. He practiced law in Seattle for about 10 years, specializing in criminal defense and business litigation. Eric is a Co-Founder at Seattle Wealth Management, LLC, a SEC registered RIA firm.


Email: Eric@SeattleWM.com

Other Collaborators

Aaron Celestian, Ph.D.


Dr. Celestian currently researches how minerals interact with their environments and with living things, and how those minerals can be used to solve problems like climate change, pollution, and disease.  His on-going research in experimental design, real-time material characterization, synthesis & application, and th

Aaron Celestian, Ph.D.


Dr. Celestian currently researches how minerals interact with their environments and with living things, and how those minerals can be used to solve problems like climate change, pollution, and disease.  His on-going research in experimental design, real-time material characterization, synthesis & application, and the functionalization of minerals is developing novel nano-crystalline Earth materials into functional materials for a wide variety of demanding applications. Prior to becoming curator of Mineral Sciences at the Natural History Museum of Los Angeles County, he was a Professor of Geology at Western Kentucky University, Director of the Advanced Materials Institute in Bowling Green, KY, affiliate scientist at the Kentucky NanoNet (a nanomaterials consortium), and VP for research & development at Terra Enviro LLC.  Currently, Dr. Celestian holds adjunct teaching and research faculty positions at the University of Southern California and holds several research positions for companies interested in ion-selective separation.  In addition to research, Dr. Celestian oversees the Gem & Mineral Hall at the Natural History Museum of Los Angeles and regularly develops mineral science exhibits.

2025 South Sound Sustainability Expo

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