Frequently Asked Questions (FAQ’s)

Question:  Can an asphalt overlay be placed over a roadway with an existing chip seal?
Answer:  Placing an overlay on a road with an existing chip seal surface is not unusual and for some standard practice. The tack coat is the most important issue.  Get it even, apply it at the correct rate, use the proper materials, make sure it is set and make sure the surface is clean and dry before you start.  No problem. For more information, contact Scott Shuler, CSU Construction Management, Associate Professor, 720-289-2153, scott.shuler@colostate.edu

Assiciation Links:

Click on any image or printed link to access the web address.

On this page you will find information related to the "Maintenance and Repair" of HMA Pavements.

June 2010

Microsurfacing

A143 Recommended Performance Guidelines for Polymer Modified Micro-Surfacing, 2010. A143.pdf

Seal Coat Resources

www.vancebrothers.com (303) 341-2604, Dan Stephens, (dstephens@vancebrothers.com) Presentation from the 37^th Annual Rocky Mountain Asphalt Conference & Equipment Show - Asphalt 106-Maintenance: Introduction to Seal Coats & Rejuvenators

Seal Master, www.sealmaster.net Chad Sayler, Sales Manager, chad@sealmasterdenver.com  (303) 394-2220

Slurry Seal – Guide Specifications

A105 Recommended Performance Guidelines for Emulsified Asphalt Slurry Seal Surfaces, 2010. A105.pdf

April 2010

Pavement Management, Justifying the Need for Pavement
Improvement Dollars, A presentation by Mike Skinner, P.E. Stantec Consulting at the CAPA technology forum on Friday April 16.

January 2010

Research Report 2009-9, “Short-Term Crack Sealant Performance and Reducing Bumps and Transverse Cracking in New Hot Mix Asphalt Overlays over Crack Sealants,” has been posted on the new CDOT website:

Cracksealants

Information Links:

Click on any printed link to access the information shown

The ABC"s of Pavement Preservation

Six Steps To A Better Chip Seal From University of California, Berkley Tech Transfer Newsletter

Potholes -The Hole Story- Facts and Fallacies of Potholes (reprinted from the APWA) Zipped File

Rural Road Maintenance

Pavement Management/ Maintenance

Rubbilization

Roadway Sweeping

CDOT- Hot In Place recycling Specification

Maintenance Article ~ By CTL/Thompson, Inc ~published in the Denver Business Journal

Utility Trench Repairs, A case study in Parker Colorado

High Volume/High Speed Asphalt Roadway Preventative Maintenance Surface Treatments

Surface Treatments: When Your Seals Make Sense, From Better Roads Magazine