Caltrans Specifications - Changes and Implementation Scott Dmytrow Telfer Oil Telfer Highway Technologies

Pavement Preservation Task Group Industry Caltrans Local Agency Purpose is to work on issues and specifications associated with pavement preservation Flexible Pavement Rigid Pavement – (Both Types) –cracked and –going to crack

Current Tasks for Flexible Pavements Fog Seal Specifications (on Hold) Cold in Place Recycling with emulsion and foamed asphalt (In rewrite) Full Depth Reclamation (In development) Asphalt Rubber Warm Mix (Test sections in place) Modified Binder (Terminal Blend – Test sections in place) Re-Write of Section 37 (more to follow later)

Recently Completed Task Scrub Seal Specification Using PMRE –Industry and Caltrans agreement on specification – (7 years in the making) –Hard copies being passed around –Electronic copy available from Caltrans –Generic scrub seal specification using rejuvenating emulsion –Emulsion can also be used for chip seal without the scrub broom

Highlights of Scrub Seal Spec

For polymer modified rejuvenating asphaltic emulsion, the Authorized Testing Laboratory must perform quality control sampling and testing at the specified frequency and location for the following quality characteristics: Highlights of Scrub Seal Spec

Submittals for Aggregate Also Screenings test results for the followings: –5.1.Gradation per California Test 202 –5.2.Los Angeles Rattler per California Test 211 –5.3.Film stripping per California Test 302 –5.4Cleanness value per California Test 227 –5.5Percent crushed particles per California Test 205

Rejuvenator

Handouts are going around To get an electronic copy send request to Sri Balasubramanian at Caltrans Or send the CCSA a request and we will send Sri an because only 2 people can actually spell his name!

Another Completed task Gradations reduced to 6 with one additional available as NSSP

And now for the toughest job SECTION 37 Seal Coats

New Section 37 Layout 1.General 2.Chip Seal 3.Slurry/Micro 4.Fog Seals/Flush Coats 5.Parking Lot Seals 6.Crack Seals

Section 37 rewrite New arrangement Everything that is common to all is in “General” Once you get to a section, “chip seal” for example all things common to all chip seals is in another “general” section

Example C Submittals At least 10 days before preconstruction meeting submit a list of participants in the preconstruction meeting. Provide each participant's name, employer, title, and role in the production and placement of the seal coats. At least 10 days before starting seal coat activities, submit the names of the authorized laboratories for quality control testing. For each delivery of asphalt binder or asphaltic emulsion to the job site, submit a certificate of compliance and a copy of the specified test results.

Example A(3) Submittals At least 15 days before use, submit: Samples for: –Asphaltic emulsion chip seal; 1 gallon plastic jug of asphaltic emulsion –Polymer asphaltic emulsion chip seal; 2 quart metal cylindrical shaped cans with open top and friction lids of polymer asphaltic emulsion –Base asphalt binder for asphalt rubber binder chip seal; 2 quart cans of asphalt binder –Asphalt rubber binder chip seal; 5 quart cans of asphalt rubber binder

However, if there are specifics… At least 15 days before use, submit: 1.Samples of each asphalt rubber binder ingredient lbs. of scrap tire crumb rubber lbs. of high natural scrap tire crumb rubber quart cans of base asphalt binder quarts cans of asphalt modifier

Many technical changes Still being reviewed by Industry and Caltrans

New Specifications for CCSA CCSA has decided to undertake an easier version following the Caltrans technical specs but easier format.

More next year.