Research

The concrete listener

Dutch concrete bridges are getting old and wrinkled. For this reason, Assistant Professor Yuguang Yang spots cracks inside concrete by listening to how sound spreads inside it. Proposing a revolutionary monitoring technique that can reduce maintenance costs and help unsticking traffic on highways.

Floating homes for the Philippines

City dwellers in the Philippines are dealing with the consequences of frequent flooding on a daily basis. This is why Phd and Global fellow Pieter Ham has been working on the construction of sustainable, modular floating homes in the Philippines since graduation. Now the pilot home is ready and the first family to test it out has moved in.

The breathing of dikes

When looking at a dike, you wouldn’t be able to detect any motion in this robust structure. Though in fact there is. On a millimetre level, dikes expand and shrink in relation to the weather conditions. Ece Özer showed that observing this ‘breathing’ of dikes could help prevent catastrophic flooding events. She used this feature to create an innovative model based on satellite data to better detect weaknesses in a dike.

Roots for riverbanks

The Netherlands has had an indissoluble relationship with water throughout history. Nowadays, 2400 km of waterways flowing through its veins use timber retaining walls along their banks. A more eco-friendly solution than brick or concrete but, still, not as sustainable as it could be. Civil Engineer Abhijith Kamath is researching an alternative method to use tree roots to strengthen waterways’ banks. Making Dutch channels greener in every way.

Not a band-aid but a feeder solution for our coasts

At the weekend Matthieu de Schipper likes to surf the waves but on weekdays he studies how they transport the sand along the coast and up and down beaches. ‘Sea level rise is a threat to coasts across the globe. I want to use the forces of nature to provide engineering solutions to this problem on a global scale’. At the Sand Motor project in the Netherlands De Schipper is training students to do the necessary fieldwork. In all weathers.

Testing a bio-based bridge

For the first time in history, a bio-based movable bridge for cyclists is tested within TU Delft’s laboratories. It was made out of flax and resins derived from plants. This structure is actually a 12-meter long prototype and it’s the first time this bio composite material is used on this scale.

What the Wadden can teach us

Intertidal zones are crucial for the protection of our coast and as stop-overs for migrating birds. But, increasingly, many of these sand and mudflats are disappearing permanently underneath the waves. Cynthia Maan investigated how by cooperating with nature and using a systems-based approach these precious resources can be saved.

Stories of Science