This 2003 e-mail about GSB® performance, written by an industry expert, is just as relevant today as it was then! From: Peter Sebaaly Sent: 1/ 22/2003 To: Dan Gee Subject: Preventive Maintenance Dan, …for your meeting with the Iowa Highway Research Board. The first thing you want to do is to educate those in charge that preventive maintenance is the best way to keep up with their pavement system. Preventive maintenance means that you do something to the pavement before you st