I have a gap in the side walk in front of my condo and I want to know the best way to fix it. you can see where the previous owner had used some type of calking material, but now the gap has opened up to almost 2".

http://i42.photobucket.com/albums/e3...psab322e13.jpg
http://i42.photobucket.com/albums/e3...psad63b0a3.jpg
http://i42.photobucket.com/albums/e3...ps7b693766.jpg

Any help is appreciated.

Thanks