[cwkoss]

Very cool project!

In the attached video, was that crushing only or was lignin binder being mixed in as well? The output looks dark but kind of powdery, I would guess that's soil being mixed in, because I don't see a fluid tank on the back of that tractor.

It looks like resulting the particle size is quite small - I would assume that some amount of aggregate would be tolerable or even beneficial for material strength. Are there gravel sized bits under the top surface? Is the output uniform or are there distinct layers.

How long does the resulting road need to "set" before cars can start driving on it, and how does that compare to traditional techniques?

Demo video shows a ~2m wide output, is this system capable of making multilane roads yet?

Wish you the best, very clever idea. :D

[hansarne]

Thank You! You are right! The video shows the first step, which is the crushing. Lignin mixing is step 2. The road can be used by cars immideatly after compacting, as with other methods. However, if You want asphalt on top, it is necessary to let it dry for 2-3 weeks to let the water-solved Lignin harden and dry. In the video it was already a lot of small particles in the ground. We can make rocks smaller, but not bigger:-) The sizes of the gravel bits are evenly distributed, but with some fines on the top(due to Newton). We are using 2,5 meters crushers. That makes it possible to not stop the traffic while working.