On February 21st I was the opponent of Magdalena Rajczakowska in the public defense of her PhD thesis on "autogenous self-healing of cementitious materials" in Lulea, Sweden. A Dr-title was the result. This had to be celebrated with a lot of cakes.

Minfei in CBM

14 Feb 2023 12:17

Article Yu Chen in Journal of Sustainable Cement Based Materials

7 Feb 2023 11:40

Article Ze Chang in CCC

7 Feb 2023 11:36

Express-test in liquid

1 Feb 2023 11:47

Some materials will dry out at the surface when doing nano-indentation tests, even if you do express-tests which only take minutes. This will influence the properties. Today I have been trying to test samples in a liquid. This works perfectly. Sample holders with pool are made out of Lego-blocks.

Meet The Professor

14 Jan 2023 09:34

36 Delft professors took part in "Meet The Professor". We all went to a primary school in Delft to give a lecture to kids in the age 10-12. In total we lectured to about 1000 young students to show them what engineering and science is and to motivate them to join our University in a couple of years.

self-healing Ice-video

21 Dec 2022 17:51

Did you know that Ice is a self-healing materials? In the video you see an Ice sample that is loaded with 6kg weight hanging on a steel wire. The wire slowly cuts through the ice and above the wire the ice sample freezes again.

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