INPUT
Concrete Waste
Thousands of recycling sites sort and crush billions of tons of demolition concrete each year. We extend their existing value chain by one decisive step - replacing downcycling by upcycling.
Concrete Waste Re-engineered
We recycle waste concrete and CO2 into high quality, sustainable materials.
Building Value from the World’s Most Abundant Waste.
INPUT
Residual CO2
Concrete causes 8% of global CO2 emissions which cannot be electrified away. And the world won’t stop using concrete. We store purified or diluted CO2 in products.
Reclaiming Future-Proof Alternatives for Fossil Minerals.
Request specifications / LCA’s
PRODUCT
Sand
We recover sand from the concrete and remove the attached cement stone. The resulting product comes with 100 % recycling share and proven performance in new concrete.
PRODUCT
Calcium Carbonate
We win high-value, Precipitated Calcium Carbonate (PCC) from removed cement stone and CO2. Our PCC is pure, white, fine and comes with an excellent Product Carbon Footprint.
Committed to enable circular Construction.
Our mission
We develop concrete upcycling plants that reclaim valuable resources and store carbon at scale. We believe the concrete value chain can only be defossilized and decarbonized by creating attractive circular income streams through outstanding engineering. Speed matters: within our first year, we achieved over 500 hours of stable prototype operation and assembled our pilot plant.
Founders
Felix Baur (LinkedIn), Co-CEO and Chief Operating Officer, leads pilot projects, deployments and commissionings. Felix invented our core technology and initiated Rement’s foundation.
Dr. Achim Stammer (LinkedIn), CTO, leads all technological decisions, including IP strategy and industrial scale-up. Achim brings in decades of R&D leadership experience from BASF.
Robert Schleinhege (LinkedIn), Co-CEO and Chief Commercial Officer, oversees financing, partnerships, recruiting, and corporate development. Robert brings in his GTM expertise from startups, corporates and SMEs.
Partner with us to close the loop.
Recycling Companies
You own the feedstock, we have the technology.
Add an upcycling step to your existing value chain
Extract maximum value out of concrete fines 0/2 and 0/4
Open income streams to new target markets
Contact us
Building Material Producers
Your products, turned green with Rement materials.
100% Recycling Rates, excellent Product Carbon Footprints
PCC for paint, coatings, sealants, and more
Sand for concrete, precast, construction chemicals, and more
Contact us
Latest News
All Articles
Sign up for Newsletter
Deep-Tech in Focus: Robert Schleinhege on Stage with Stefan Quandt and Prof. Jan Hesthaven
February 2, 2026
Philipp Engelkamp Appointed to Advisory Board
January 8, 2026
Rement Recognized for Sustainable Excellence with 2. Place at Lothar Späth Award
January 3, 2026
Concrete Waste Re-engineered
We recycle waste concrete and CO2 into high quality, sustainable materials.
Building Value from the World’s Most Abundant Waste.
INPUT
Concrete Waste
Thousands of recycling sites sort and crush billions of tons of demolition concrete each year. We extend their existing value chain by one decisive step - replacing downcycling by upcycling.
INPUT
Residual CO2
Concrete causes 8% of global CO2 emissions which cannot be electrified away. And the world won’t stop using concrete. We store purified or diluted CO2 in products.
Reclaiming Future-Proof Alternatives for Fossil Minerals.
Request specifications / LCA’s
PRODUCT
Sand
We recover sand from the concrete and remove the attached cement stone. The resulting product comes with 100 % recycling share and proven performance in new concrete.
PRODUCT
Calcium Carbonate
We win high-value, Precipitated Calcium Carbonate (PCC) from removed cement stone and CO2. Our PCC is pure, white, fine and comes with an excellent Product Carbon Footprint.
Committed to enable circular construction.
Our mission
We develop concrete upcycling plants that reclaim valuable resources and store carbon at scale. We believe the concrete value chain can only be defossilized and decarbonized by creating attractive circular income streams through outstanding engineering. Speed matters: within our first year, we achieved over 500 hours of stable prototype operation and assembled our pilot plant.
Founders
Felix Baur (LinkedIn), Co-CEO and Chief Operating Officer, leads pilot projects, deployments and commissionings. Felix invented our core technology and initiated Rement’s foundation.
Dr. Achim Stammer (LinkedIn), CTO, leads all technological decisions, including IP strategy and industrial scale-up. Achim brings in decades of R&D leadership experience from BASF.
Robert Schleinhege (LinkedIn), Co-CEO and Chief Commercial Officer, oversees financing, partnerships, recruiting, and corporate development. Robert brings in his GTM expertise from startups, corporates and SMEs.
Partner with us to close the loop.
Recycling Companies
You own the feedstock, we have the technology.
Add an upcycling step to your existing value chain
Extract maximum value out of concrete fines 0/2 and 0/4
Open income streams to new target markets
Contact us
Building Material Producers
Your products, turned green with Rement materials.
100 % Recycling Rates, excellent Product Carbon Footprints
PCC for paint, coatings, sealants, and more
Sand for concrete, precast, construction chemicals, and more
Contact us
Latest News
All Articles
Sign up for Newsletter
Deep-Tech in Focus: Robert Schleinhege on Stage with Stefan Quandt and Prof. Jan Hesthaven
February 2, 2026
Philipp Engelkamp Appointed to Advisory Board
January 8, 2026
Rement Recognized for Sustainable Excellence with 2. Place at Lothar Späth Award
January 3, 2026
Concrete Waste Re-engineered
We recycle waste concrete and CO2 into high quality, sustainable materials.
Building Value from the World’s Most Abundant Waste.
INPUT
Concrete Waste
Thousands of recycling sites sort and crush billions of tons of demolition concrete each year. We extend their existing value chain by one decisive step - replacing downcycling by upcycling.
INPUT
Residual CO2
Concrete causes 8% of global CO2 emissions which cannot be electrified away. And the world won’t stop using concrete. We store purified or diluted CO2 in products.
Reclaiming Future-Proof Alternatives for Fossil Minerals.
Request specifications / LCA’s
PRODUCT
Sand
We recover sand from the concrete and remove the attached cement stone. The resulting product comes with 100 % recycling share and proven performance in new concrete.
PRODUCT
Calcium Carbonate
We win high-value, Precipitated Calcium Carbonate (PCC) from removed cement stone and CO2. Our PCC is pure, white, fine and comes with an excellent Product Carbon Footprint.
Committed to enable circular Construction.
Our mission
We develop concrete upcycling plants that reclaim valuable resources and store carbon at scale. We believe the concrete value chain can only be defossilized and decarbonized by creating attractive circular income streams through outstanding engineering. Speed matters: within our first year, we achieved over 500 hours of stable prototype operation and assembled our pilot plant.
Founders
Felix Baur (LinkedIn), Co-CEO and Chief Operating Officer, leads pilot projects, deployments and commissionings. Felix invented our core technology and initiated Rement’s foundation.
Dr. Achim Stammer (LinkedIn), CTO, leads all technological decisions, including IP strategy and industrial scale-up. Achim brings in decades of R&D leadership experience from BASF.
Robert Schleinhege (LinkedIn), Co-CEO and Chief Commercial Officer, oversees financing, partnerships, recruiting, and corporate development. Robert brings in his GTM expertise from startups, corporates and SMEs.
Our Team
Adrian Neukirch
Materials Engineer
Moritz Berger
Materials Engineer
Tim Kurz
Development Engineer
Amanda Allmang
Process Engineer
Philipp Engelkamp
Advisor
Prof. Frank Dehn
Advisor
Partner with us to close the loop.
Recycling Companies
You own the feedstock, we have the technology.
Add an upcycling step to your existing value chain
Extract maximum value out of concrete fines 0/2 and 0/4
Open income streams to new target markets
Contact us
Building Material Producers
Your products, turned green with Rement materials.
100% recycling share, excellent Product Carbon Footprints
PCC for paint, coatings, sealants, and more
Sand for concrete, precast, construction chemicals, and more
Contact us
Latest News
All Articles
Sign up for Newsletter
Deep-Tech in Focus: Robert Schleinhege on Stage with Stefan Quandt and Prof. Jan Hesthaven
February 2, 2026
Philipp Engelkamp Appointed to Advisory Board
January 8, 2026
Rement Recognized for Sustainable Excellence with 2. Place at Lothar Späth Award
January 3, 2026
Concrete Waste Re-engineered
We recycle waste concrete and CO2 into high quality, sustainable materials.
Building Value from the World’s Most Abundant Waste.
INPUT
Concrete Waste
Thousands of recycling sites sort and crush billions of tons of demolition concrete each year. We extend their existing value chain by one decisive step - replacing downcycling by upcycling.
INPUT
Residual CO2
Concrete causes 8% of global CO2 emissions which cannot be electrified away. And the world won’t stop using concrete. We store purified or diluted CO2 in products.
Reclaiming Future-Proof Alternatives for Fossil Minerals.
Request specifications / LCA’s
PRODUCT
Sand
We recover sand from the concrete and remove the attached cement stone. The resulting product comes with 100 % recycling share and proven performance in new concrete.
PRODUCT
Calcium Carbonate
We win high-value, Precipitated Calcium Carbonate (PCC) from removed cement stone and CO2. Our PCC is pure, white, fine and comes with an excellent Product Carbon Footprint.
Committed to enable circular Construction.
Our mission
We develop concrete upcycling plants that reclaim valuable resources and store carbon at scale. We believe the concrete value chain can only be defossilized and decarbonized by creating attractive circular income streams through outstanding engineering. Speed matters: within our first year, we achieved over 500 hours of stable prototype operation and assembled our pilot plant.
Founders
Felix Baur (LinkedIn), Co-CEO and Chief Operating Officer, leads pilot projects, deployments and commissionings. Felix invented our core technology and initiated Rement’s foundation.
Dr. Achim Stammer (LinkedIn), CTO, leads all technological decisions, including IP strategy and industrial scale-up. Achim brings in decades of R&D leadership experience from BASF.
Robert Schleinhege (LinkedIn), Co-CEO and Chief Commercial Officer, oversees financing, partnerships, recruiting, and corporate development. Robert brings in his GTM expertise from startups, corporates and SMEs.
Our Team
Adrian Neukirch
Materials Engineer
Moritz Berger
Materials Engineer
Tim Kurz
Development Engineer
Amanda Allmang
Process Engineer
Philipp Engelkamp
Advisor
Prof. Frank Dehn
Advisor
Partner with us to close the loop.
Recycling Companies
You own the feedstock, we have the technology.
Add an upcycling step to your existing value chain
Extract maximum value out of concrete fines 0/2 and 0/4
Open income streams to new target markets
Contact us
Building Material Producers
Your products, turned green with Rement materials.
100% recycling share, excellent Product Carbon Footprints
PCC for paint, coatings, sealants, and more
Sand for concrete, precast, construction chemicals, and more
Contact us
Latest News
All Articles
Sign up for Newsletter
Deep-Tech in Focus: Robert Schleinhege on Stage with Stefan Quandt and Prof. Jan Hesthaven
February 2, 2026
Philipp Engelkamp Appointed to Advisory Board
January 8, 2026
Rement Recognized for Sustainable Excellence with 2. Place at Lothar Späth Award
January 3, 2026