Yep, both of those used displacement -- which is a shame because they really didn't need it, so I made edited versions for you without displacement:
https://dl.dropbox.com/u/41250852/j_edited_concretes.zip
For that matter I have already made hundreds of free SketchUp materials with linked MXM's for all of the Arroway textures (including the Concrete set), which you can get here:
http://www.maxwellrender.com/forum/viewtopic.php?f=107&t=38528
While it's true the Arroway textures (http://www.arroway-textures.com/) can be slightly expensive, you will find they are the best in the business... and by using my sets you will have whatever you want already ready to use just like any normal Sketchup material.
Best,
Jason.