RockDefTUD
@rockdeftud.bsky.social
We are the Rock Mechanics lab at TU Delft. We will post about the rocks we break and the resulting science. By Anne Pluymakers and Auke Barnhoorn
Thoroughly enjoying the Euroconference on Rock Physics and Rock Mechanics organized by the Strasbourg and EPFL team..and it turns into an awesome reunion with Debanjan Chandra and Kai Li! Awesome science so far and a great landscape for recuperating hikes in the lunch break
January 20, 2026 at 2:45 PM
Thoroughly enjoying the Euroconference on Rock Physics and Rock Mechanics organized by the Strasbourg and EPFL team..and it turns into an awesome reunion with Debanjan Chandra and Kai Li! Awesome science so far and a great landscape for recuperating hikes in the lunch break
A rare view here in Delft! Lots of snow these days, whilst 2026 is slowly firing up. We wish you all a smashing year! May it rock 🪨😁
January 6, 2026 at 8:55 AM
A rare view here in Delft! Lots of snow these days, whilst 2026 is slowly firing up. We wish you all a smashing year! May it rock 🪨😁
Christmas came early this year ! A new saw for the more fragile rocks 😍😁
December 12, 2025 at 12:10 PM
Christmas came early this year ! A new saw for the more fragile rocks 😍😁
Reposted by RockDefTUD
More than seven thousand students, lecturers and researchers gathered in Amsterdam on Tuesday to demonstrate against the budget cuts on higher education.
‘Don't forget us,’ say representatives to the parties forming the new government. ‘Not everything is about immigration, defence or housing.’
‘Don't forget us,’ say representatives to the parties forming the new government. ‘Not everything is about immigration, defence or housing.’
Thousands of students and teachers rally for higher education - Delta
More than seven thousand students, lecturers and researchers gathered in Amsterdam on Tuesday to demonstrate against the budget cuts on higher education. The participants in the demonstration marched ...
delta.tudelft.nl
December 10, 2025 at 1:33 PM
More than seven thousand students, lecturers and researchers gathered in Amsterdam on Tuesday to demonstrate against the budget cuts on higher education.
‘Don't forget us,’ say representatives to the parties forming the new government. ‘Not everything is about immigration, defence or housing.’
‘Don't forget us,’ say representatives to the parties forming the new government. ‘Not everything is about immigration, defence or housing.’
So what can you do when shooting with neutrons at rocks, look at this cool publication by the Norwegian team at NJORD! Mixing and precipitation can be shown in real time agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Coupling Neutron and X‐Ray Imaging of Fluid Mixing and Precipitation in Rocks: Challenges and Opportunities
We used coupled 4D neutron and X-ray imaging to study fluid mixing and calcite precipitation in basalt Neutron imaging can image the mixing of various aqueous solutions in porous basalt during fl...
agupubs.onlinelibrary.wiley.com
December 4, 2025 at 7:59 AM
So what can you do when shooting with neutrons at rocks, look at this cool publication by the Norwegian team at NJORD! Mixing and precipitation can be shown in real time agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Well done Milady! Another one of Milads PhD papers has been published. Curious how fluid pressure affects fault slip in permeable sandstone? Check it out here dx.doi.org/10.1029/2024...
The Effect of Pressurization Rate and Pattern on Injection‐Induced Seismicity in Highly Permeable Sandstone: An Experimental Study
Laboratory investigation of the effect of pressurization rate and pattern on fault slip behavior A high pressurization rate may lead to a sudden decrease in effective normal stress, resulting in ...
dx.doi.org
December 3, 2025 at 10:22 AM
Well done Milady! Another one of Milads PhD papers has been published. Curious how fluid pressure affects fault slip in permeable sandstone? Check it out here dx.doi.org/10.1029/2024...
Merry Sinterklaas! Our end-of-year lunch came early this year 🥰
November 28, 2025 at 11:29 AM
Merry Sinterklaas! Our end-of-year lunch came early this year 🥰
Reposted by RockDefTUD
Are you an #AssistantProfessor in the #Netherlands? Join APNet today to become part of our amazing network.
If you become a member between now and the end of the year, you can make use of our end-of-year promotion and become member for 20 € until the end of 2026.
ap-net.nl/register/
If you become a member between now and the end of the year, you can make use of our end-of-year promotion and become member for 20 € until the end of 2026.
ap-net.nl/register/
November 26, 2025 at 3:21 PM
Are you an #AssistantProfessor in the #Netherlands? Join APNet today to become part of our amazing network.
If you become a member between now and the end of the year, you can make use of our end-of-year promotion and become member for 20 € until the end of 2026.
ap-net.nl/register/
If you become a member between now and the end of the year, you can make use of our end-of-year promotion and become member for 20 € until the end of 2026.
ap-net.nl/register/
Going home. Thanks for all the inspiring science @epostcsah.bsky.social and @rocklabstrasbourg.bsky.social 🤓 #breaking rocks #rocks!
November 26, 2025 at 3:55 PM
Going home. Thanks for all the inspiring science @epostcsah.bsky.social and @rocklabstrasbourg.bsky.social 🤓 #breaking rocks #rocks!
On my way to Strasbourg, to visit @rocklabstrasbourg.bsky.social and to connect with the @epostcsah.bsky.social community. I got to admit, traveling per train beats the plane by a mile! Better views, better seats, better WiFi. Now if there wouldn't be any strikes on the way... It would be perfect
November 24, 2025 at 12:08 PM
On my way to Strasbourg, to visit @rocklabstrasbourg.bsky.social and to connect with the @epostcsah.bsky.social community. I got to admit, traveling per train beats the plane by a mile! Better views, better seats, better WiFi. Now if there wouldn't be any strikes on the way... It would be perfect
Excited to be back at PSI with the crew from Njord to shoot with neutrons and X-rays at rocks to investigate flow and precipitation in basalts
November 3, 2025 at 10:32 AM
Excited to be back at PSI with the crew from Njord to shoot with neutrons and X-rays at rocks to investigate flow and precipitation in basalts
Anne Pluymakers got a #Vidi grant from Dutch #NWO to investigate why different fluids make limestone break in a different way, and to see if we improve our acoustic and electromagnetic monitoring for #geothermal energy and #ccs... And so our team grows (a bit) 😁🤓 www.tudelft.nl/en/2025/citg...
Five CEG researchers receive Vidi grant
No less than five researchers from our faculty will receive a Vidi grant this year. The Dutch Research Council NWO awards the grants to successful scientists to give them a helping hand in further dev...
www.tudelft.nl
October 23, 2025 at 2:29 PM
Anne Pluymakers got a #Vidi grant from Dutch #NWO to investigate why different fluids make limestone break in a different way, and to see if we improve our acoustic and electromagnetic monitoring for #geothermal energy and #ccs... And so our team grows (a bit) 😁🤓 www.tudelft.nl/en/2025/citg...
*Krak!* In case you think salt always flows.....in Jops PhD project it is all about breaking salt. And it does so quite nicely, if you push it enough!
October 21, 2025 at 11:26 AM
*Krak!* In case you think salt always flows.....in Jops PhD project it is all about breaking salt. And it does so quite nicely, if you push it enough!
Shihao is on a roll! Last week he presented in Beijing, today in Cyprus... And in between he submitted the final draft of his PhD thesis to the Graduate School! 😎🤓😁😁😁
October 20, 2025 at 4:30 PM
Shihao is on a roll! Last week he presented in Beijing, today in Cyprus... And in between he submitted the final draft of his PhD thesis to the Graduate School! 😎🤓😁😁😁
PhD candidate Jop is crushing it! Trying out how mechanically homogeneous and repeatable the homemade salt rocks are 😁
October 17, 2025 at 6:35 AM
PhD candidate Jop is crushing it! Trying out how mechanically homogeneous and repeatable the homemade salt rocks are 😁
Sometimes you mechano-chemically torture rocks and not much happens... But still good to know! Check out our new publication to see that 6 months exposure to H2 did not change the mechanics of these sandstones... www.nature.com/articles/s41...
Hydrogen solution exposure at a seasonal timescale does not affect the geomechanical properties of clay-rich sandstones
Scientific Reports - Hydrogen solution exposure at a seasonal timescale does not affect the geomechanical properties of clay-rich sandstones
www.nature.com
October 16, 2025 at 8:08 AM
Sometimes you mechano-chemically torture rocks and not much happens... But still good to know! Check out our new publication to see that 6 months exposure to H2 did not change the mechanics of these sandstones... www.nature.com/articles/s41...
Check out our new publication, by Debanjan Chandra, Lujain Alghannam and Auke Barnhoorn, on how sonic velocity can be incorporated into a traffic light system in subsurface storage systems www.sciencedirect.com/science/arti...
Applicability of ultrasonic measurements to monitor and forecast stress change in subsurface storage applications
The global expansion of subsurface CO₂ and hydrogen storage, alongside geothermal energy development, offers promising pathways for gigaton-scale CO₂ …
www.sciencedirect.com
October 16, 2025 at 8:06 AM
Check out our new publication, by Debanjan Chandra, Lujain Alghannam and Auke Barnhoorn, on how sonic velocity can be incorporated into a traffic light system in subsurface storage systems www.sciencedirect.com/science/arti...
Check out our new publication, by Debanjan Chandra, Lujain Alghannam and Auke Barnhoorn, on how sonic velocity can be incorporated into a traffic light system in subsurface storage systems www.sciencedirect.com/science/arti...
Applicability of ultrasonic measurements to monitor and forecast stress change in subsurface storage applications
The global expansion of subsurface CO₂ and hydrogen storage, alongside geothermal energy development, offers promising pathways for gigaton-scale CO₂ …
www.sciencedirect.com
October 16, 2025 at 8:06 AM
Check out our new publication, by Debanjan Chandra, Lujain Alghannam and Auke Barnhoorn, on how sonic velocity can be incorporated into a traffic light system in subsurface storage systems www.sciencedirect.com/science/arti...
Check out this new publication on how fluid density changes the ultrasonic response to stress changes, by Debanjan Chandra and Auke Barnhoorn www.sciencedirect.com/science/arti...
Ultrasonic response of a brine-saturated reservoir rock during coupled stress and fluid perturbation during liquid-CO2 injection
CO2 injection into porous sandstone reservoirs offers a promising pathway to curb anthropogenic carbon emissions, but poses risks of leakage and induc…
www.sciencedirect.com
October 16, 2025 at 8:03 AM
Check out this new publication on how fluid density changes the ultrasonic response to stress changes, by Debanjan Chandra and Auke Barnhoorn www.sciencedirect.com/science/arti...
Publications can be stuck in peer review for ever... And then all of a sudden there are three from the lab!
October 16, 2025 at 8:01 AM
Publications can be stuck in peer review for ever... And then all of a sudden there are three from the lab!
Disco-salt! This is a very salty day, meeting with PhD Jop on his salt project but also sitting in a national salt meeting talking about what's happening in salt. This salt block is standing in our lab post-lab-torture 😁 happy Friday all!
October 10, 2025 at 8:53 AM
Disco-salt! This is a very salty day, meeting with PhD Jop on his salt project but also sitting in a national salt meeting talking about what's happening in salt. This salt block is standing in our lab post-lab-torture 😁 happy Friday all!
For those at the European #geothermal congress: go see @entelakane.bsky.social , in session 6F: Rock mechanics and petrophysics, Gartensaal 1A
October 9, 2025 at 5:28 AM
For those at the European #geothermal congress: go see @entelakane.bsky.social , in session 6F: Rock mechanics and petrophysics, Gartensaal 1A
3 months of failed attempts but finally some progress on pressing our own salt samples from NaCl powder #teamSalt not yet perfect but at least it doesn't crumble...
September 24, 2025 at 1:59 PM
3 months of failed attempts but finally some progress on pressing our own salt samples from NaCl powder #teamSalt not yet perfect but at least it doesn't crumble...
Our former postdoc Kai Li started his new job at KIT Karlsruhe already in January, but nonetheless he has been diligently working on publishing his postdoc "Effects of confined thermal cycling on sealants with different thermomechanical properties for #CCS" www.nature.com/articles/s41...
Effects of confined thermal cycling on sealants with different thermomechanical properties for CCS - Scientific Reports
Scientific Reports - Effects of confined thermal cycling on sealants with different thermomechanical properties for CCS
www.nature.com
September 18, 2025 at 7:36 AM
Our former postdoc Kai Li started his new job at KIT Karlsruhe already in January, but nonetheless he has been diligently working on publishing his postdoc "Effects of confined thermal cycling on sealants with different thermomechanical properties for #CCS" www.nature.com/articles/s41...
It's basalt time! Working on a few samples for Njord Oslo, who invited Anne to join their trip to PSI in November to shoot neutrons at rocks again
September 16, 2025 at 8:17 AM
It's basalt time! Working on a few samples for Njord Oslo, who invited Anne to join their trip to PSI in November to shoot neutrons at rocks again