The tonka concrete mixer is on the move. come take a ride and see all the places concrete is used! Check out the plant where the mixer picks up its load of dry concrete mix, see how an in ground pool is poured, and discover other ways that concrete is used. Put on your hard had and let's go!The tonka concrete mixer is on the move. come take a ride and see all the places concrete is used! Check out the plant where the mixer picks up its load of dry concrete mix, see how an in ground pool is poured, and discover other ways that concrete is used. Put on your hard had and let's go!