Presentation delivered by Don Goss of Valero Marketing & Supply Co. at the 2015 CalAPA Fall Asphalt Pavement Conference Oct. 28 in Sacramento, Calif.

1. Crumb Rubber Modifier
New Verification Requirements
CalAPA Conference
October 28, 2015
Donald Goss, Jr.
Senior Manager, Product Technical Services
Valero Marketing & Supply Company
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2. CRM – New Verification Requirements
 Key Issue: How should producers of CRM-
modified asphalt products verify the quantity
of CRM in their products?
 Important for Caltrans – AB338 (2005) & PRC
Sec. 42703 require annual reporting by Caltrans
 Important for Industry – Desire for a uniform
approach.
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3. CRM – New Verification Requirements
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4. CRM – New Verification Requirements
 March 2014 Caltrans/Industry began work
on Scoping Document
 July 2014 first meeting of the CRM
Verification Subtask Group under RPC
 An RPC “Expedited Issue”
 “Verification” got expanded!
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5. CRM – New Verification Requirements
 March 2015 Caltrans/Industry finalized
CRM Verification Protocols
 Three Parts:
1. CRM Source Verification
2. Weights & Measures Protocol
3. Independent Verification
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6. CRM – New Verification Requirements
• CRM Source Verification
• A Chain of Custody Protocol
• Verify that CRM is from USA
• Caltrans maintains a Qualified
Products List (QPL)
• CRM suppliers under CalRecycle
automatically meet requirements
 Out-of-state CRM suppliers must
have equivalent documentation
• CRM suppliers provide certification
to CRM users
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7. CRM – New Verification Requirements
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8. CRM – New Verification Requirements
• Weights and Measures Protocol
• Applies to all Caltrans CRM binders
except Asphalt Rubber
• Specifies equipment & procedures
for blending CRM in asphalt
• Solids measured by weight (load cells)
 Liquids measured by mass flow meters
 Requires plant process controller
to meet certain specifications
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9. CRM – New Verification Requirements
• Independent Verification
• CRM binder plant operator must be
a licensed weighmaster
• Must produce a weighmaster’s
certification for each batch
• Caltrans may visit CRM binder
production unannounced
 Caltrans must be notified prior to
CRM binder production
 Contractor completes CRM Usage Report
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10. CRM – New Verification Requirements
Implementation Status:
 METS has docs necessary to add Approved CRM
Suppliers to Authorized Materials List
 CRM Weights & Measures Protocol is added as
“errata” section to the MPQP document
http://www.dot.ca.gov/hq/construc/hma/MPQP.pdf
 CT Construction Div. is finalizing the “proof copy” of
the CRM Usage Report Form (CEM-4410)
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11. CRM – New Verification Requirements
Implementation Status:
 CRM@dot.ca.gov – email site for the deliverance of
the CRM Usage Report Form is operable.
 Spec changes for Sections 37, 39, 92 are ready for
submittal to OE as RSS to 2015 Std. Specifications
 Full implemented is required by July 1, 2016
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12. CRM – New Verification Requirements
Thank You!
Questions / Comments?
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