Pavement Preservation Journal - Spring 2010 - (Page 24)

Friction Restoration + Pavement Rejuvenation = Superior Surface By Steve Varnedoe, P.E. Y ou may recall the television commercials from a few years ago for Reese’s Peanut Butter Cups, where chocolate and peanut butter were constantly colliding to create “Two great tastes that taste great together.” That’s the analogy Janice Williams from the Louisiana Department of Transportation and Development uses to describe the innovative approach taken by her agency to combine two pavement preservation tools: Pavement surface abrading by Skidabrader, and rejuvenation using Reclamite by Pavement Technology, a licensed distributor for the Tricor Refineries LLC product. This novel combination was used to restore surface friction and extend pavement life on two Louisiana trial projects, U.S. 80 in Arcadia and U.S. 51 in Hammond. Based upon Louisiana’s initial success, the Mississippi DOT decided to follow suit, constructing a similar project on SR 25 northeast of Jackson for evaluation. We’ve often heard stories of how great ideas are conceived on the back of a restaurant napkin, in the morning shower, or in a passing conversation. Such is the case with combining Skidabrader and Reclamite technologies together as a unique pavement preservation solution. When Colin Durante from Pavement Technology, Inc. and Gary Billiard from Skidabrader, both industry members of the AASHTO TSP∙2 Southeast Pavement Preservation Partnership (SEPPP), were discussing applications for each other’s products in the exhibitor area of the New Orleans, Hotel Monteleone (site of the 2009 SEPPP annual meeting), the light bulb suddenly came on. Asphalt rejuvenators such as Reclamite have been successfully used pavement preservation journal Skidabrader equipment on the U.S. 25 trial project near Jackson, Miss. Reclamite rejuvenator being placed on the U.S. 25 Trial Project near Jackson, Miss., using a BearCat 2,000-gal distributor. Skid Testing (ASTM E-524 Bald Tire) on U.S. 51 in Louisiana; note the difference in surface texture between treated and untreated sections for many years to restore pavement ductility and durability (common problems brought about as a result of oxidation), with the added benefit of creating an in-depth seal in the process. This cationic maltene emulsion, sprayapplied to a pavement surface, is subsequently absorbed into the matrix of the structure. Once absorbed, the Reclamite components combine with the in-place asphalt binder to adjust its viscosity. Rejuvenation products such as Reclamite have generally been limited, however, to low-speed local streets or municipal roadways due to an initial drop in pavement skid resistance which occurs while the material is being absorbed into the pavement. With more than 30 years of experience in the business of applying Reclamite, Durante has long maintained that this short-term obstacle could be overcome if the pavement surface had sufficient macrotexture (i.e. a measure of aggregate particle arrangement in the surface which facilitates the movement of water Spring 2010

Table of Contents for the Digital Edition of Pavement Preservation Journal - Spring 2010

Pavement Preservation Journal - Spring 2010
President’s Message
Conference Will Bring World of Pavement Preservation to Single Location
Let Pavement Preservation Be Part of SurfaceTransportation Reauthorization in 2010
Friction Restoration + Pavement Rejuvenation = Superior Surface
Town Controls Potholes, Costs with All-in-One Patch Truck
First Woman President of IGGA No Stranger to Grooving, Grinding
Texas Lassos PG, Rubber, Warm Mix Asphalts
Pavement Distress Guidelines Improve Ontario Management
Synergy Between Northeast Partnership, Pavement Managers
Experts Confront Dispute on Concrete Joint Sealing
High-Tech Repairs Give I-70 Viaduct New Life
Calendar of Events
Index to Advertisers

Pavement Preservation Journal - Spring 2010