Natalia Pires Martins
pinatalim.bsky.social
Natalia Pires Martins
@pinatalim.bsky.social
Researcher at @vito-research.bsky.social
This new paper investigates the durability of cement containing internal sulfides coming from tailings. What happens when wet–dry cycles — typically used to accelerate external sulfate attack — are applied to mortars and pastes containing pyritic materials?
link.springer.com/article/10.1...
Assessment of internal sulfate attack in cement partially replaced with pyritic materials using wet–dry cycles - Materials and Structures
When used in cement-based materials, sulfidic minerals such as pyrite may oxidize in the long term and their oxidation products may react with the cementitious matrix. This long-term instability of su...
link.springer.com
June 15, 2025 at 9:43 AM
Reposted by Natalia Pires Martins
A new strategy for the valorization of Mg-silicate residues via mineral carbonation was developed @vito-research.bsky.social: the production of akermanitic carbonatable clinkers as intermediate with high reactivity towards CO2. doi.org/10.3389/fmat...
Frontiers | Akermanitic clinker unlocks the potential of Mg-silicates for carbonation cured construction materials
The global CO2 storage potential of Mg-silicate minerals is renowned. The valorization of residues containing these minerals via ex situ carbonation therefor...
doi.org
May 13, 2025 at 1:41 PM
Reposted by Natalia Pires Martins
We recently discovered that Mg-silicate slags can be modified into reactive raw materials for mineral carbonation by the formation of akermanite.
doi.org/10.1016/j.jc...

This is only the first paper opening up a wide range of new possibilities in the carbonation work at @vito-research.bsky.social
Redirecting
doi.org
May 9, 2025 at 6:52 AM
And just this week, we published a deeper investigation of the clinkering process, including raw meal optimization using pyroxene-rich residues (mine tailings, FeNi slag), and a commercial serpentine-rich sand as raw materials for this new akermanitic carbonatable clinker

doi.org/10.3389/fmat...
Frontiers | Akermanitic clinker unlocks the potential of Mg-silicates for carbonation cured construction materials
The global CO2 storage potential of Mg-silicate minerals is renowned. The valorization of residues containing these minerals via ex situ carbonation therefor...
doi.org
May 15, 2025 at 9:12 AM
Fresh publications from our team at @vito-research.bsky.social:

First, the discovery of akermanite as an interesting carbonatable phase for the valorization of Mg-silicate slags in carbonated construction materials:
doi.org/10.1016/j.jc...
Redirecting
doi.org
May 15, 2025 at 9:07 AM