Progressive Planet files U.S. patent for LCD cement

Executive Summary

• Progressive Planet Solutions Inc. has developed "Planet LCD cement," a new supplementary cementing material using limestone calcined diatomite, which can replace up to 50% of Portland cement while maintaining strong compressive strength.
• The company has filed a U.S. provisional patent application for Planet LCD cement and a trademark application in Canada, with international protection sought.
• The Calgary C-Quester Centre is set for a grand opening on March 26, 2026, focusing on Planet LCD cement development, Gladiator SCM, and third-party testing services.

Key Details

• Planet LCD Cement Development:
  • Developed a third supplementary cementing material named Planet LCD cement.
  • Uses diatomaceous earth, limestone, and gypsum; does not require metakaolin (which is more expensive).
  • Contains significantly lower alumina levels compared to standard Limestone Calcined Clay Cement (LC3).
  • Testing demonstrates strong compressive strength on a weight-for-weight basis at 20%, 35%, and 50% replacement of Portland cement.
  • All compressive strengths passed ASTM C618 standards.
  • Waste diatomaceous earth powders are utilized, which sell for a fraction of the cost of metakaolin.
• Intellectual Property:
  • Trademark application filed in Canada for "Planet LCD cement."
  • U.S. provisional patent application filed for the composition of Planet LCD cement.
  • International filings planned within one year.
• Calgary Lab (C-Quester Centre of Sustainable Solutions):
  • Grand opening scheduled for Thursday, March 26, 2026.
  • Focus areas: Creating various versions of Planet LCD cement using waste diatomaceous earth sources, developing a proprietary plasticizer for Planet LCD cement, and developing versions of Gladiator SCM.
  • Will offer contractual testing services to third-party clients to become a profit center.
• Kamloops Lab Updates:
  • Focuses on quality control testing of PozGlass SCM.
  • Developing specialty cement additives containing glass nanoparticles.
  • Invested in a specialty particle size analyzer capable of identifying particles as small as 10 nanometres.
  • Efforts underway to recover and generate more glass nanoparticles from wastewater produced during PozGlass SCM production.
• PozGlass SCM Pilot Plant:
  • All major components for Phase 1 are installed.
  • Team is installing roof/siding and energizing equipment.
  • Expectation to produce dry glass powder before the end of Q4 (April 30, 2026), pending electrical utility connection delays.

Notable Quotes

• "Planet LCD cement uses diatomaceous earth, limestone and gypsum, all which are plentiful materials... We have created a highly reactive cement without metakaolin. Waste diatomaceous earth powders sell for a fraction of the cost of metakaolin. This opens up opportunities to utilize waste diatomaceous earth powders globally to replace 50 per cent of Portland with Planet LCD cement." — Steve Harpur, CEO
• "Planet LCD cement is a scalable solution that creates stronger cement than the status quo... The reactivity of silica in these naturally occurring rocks is exceptional for the production of natural pozzolans." — Dr. Doug Brown, CTO
• "The ability to create incremental value from particles that are so small that they pass through the filter press that recovers PozGlass is exciting to me." — Michael Carrell, Manager of the PozGlass SCM lab