AnorTech Announces Positive Results From Sustainable Cement 2025-06-04 09:00 ET - News Release
VANCOUVER, British Columbia, June 04, 2025 (GLOBE NEWSWIRE) -- Vancouver, BC – ANORTECH INC. (“AnorTech” or the “Company”) (TSX Venture Exchange “ANOR”; OTC “ANORF”) is pleased to announce the successful completion of the latest phase of its research and development (R&D) program focused on producing sustainable cement products using anorthosite from the Company’s Gronne Bjerg Project in Greenland.
The program, conducted by the Danish Technological Institute (DTI) in Copenhagen, focused on three high-potential product lines:
- Very low CO2 refractory cement,
- 3D printable anorthosite cement-based mortar formulations, and
- Very low CO2 concrete niche applications
DTI’s testwork utilized 100% anorthosite in various size fractions, mixed with phosphoric acid (H3PO4) at varying concentrations to produce materials that were tested for performance across multiple applications. Fresh and mechanical properties were also evaluated to assess commercialization potential. Unlike Ordinary Portland Cement (OPC), AnorTech’s process does not require clinker production, which emits approximately 0.9 tonnes of CO2 per tonne of OPC. As a result, AnorTech’s cement applications can eliminate approximately 90% of CO2 emissions.
Refractory Cement Testwork Highlights
- Successfully cast anorthosite mortar prisms that withstood multiple heating cycles at 1,200 °C for five hours without compromising structural integrity
- Compressive strength was maintained, or even slightly increased, after thermal heating cycles with post-treatment strength exceeding 25.0 MPa
- Two large slabs (10cm thick) were cast for extended refractory testing. One will be cut in half, with one half exposed to outdoor weathering for one year to assess long-term strength and microstructures evolution.
According to Future Market Insights (Sept. 2024), the global refractory cement market reached USD $22.8 billion in 2023 and is projected to grow at a CAGR of 4.7%, reaching an estimated USD $37.7 billion by 2034.
3D Printable Cement Testwork Highlights
- More than 20 formulations were tested to determine the optimal mix for printability and structural buildability
- The addition of viscosity-modifying admixture enhanced print quality and control
- The program successfully printed multiple 3D structures, confirming proof of concept
Jim Cambon, President, commented: “We continue to make excellent progress in developing sustainable anorthosite-based technologies, leveraging proprietary knowledge and confidential processes built over the past eight years. Our extensive R&D efforts are yielding real, functional results with the potential for high-value, disruptive applications. We are particularly excited about the opportunities in the high-value refractory cement market and are now working towards product certification. This represents an excellent addition to our portfolio, alongside our sustainable, zero-waste smelter-grade alumina (SGA) product.