Using Polymer Modified Asphalt Emulsions in Surface Treatments A ...

2.10 SURFACE TREATMENTS, DISTRESS, AND COST-EFFECTIVENESS .................................................... 75
3.0 LABORATORY TESTING AND SPECIFICATION RECOMMENDATIONS ................................ 78
3.1 INDUSTRY OUTREACH INITIATIVES ................................................................................................. 78
3.1.1. Initial Discussions with Industry Representatives ................................................................. 78
3.1.2 Findings from the Survey and Follow-up Communication .................................................... 79
PME Emulsion Test Methods and Specifications ........................................................................................... 80
Residue Recovery ......................................................................................................................................... 81
Residue Testing Using Superpave Binder Technology .................................................................................. 82
Aggregate Specifications ............................................................................................................................... 89
Emulsion/Aggregate Performance Tests ....................................................................................................... 98
Manufacturing and Construction .................................................................................................................. 100
3.1.3. Follow-up Discussions with Larger Industry Audience ........................................................ 102
3.2 SPECIFIC RECOMMENDATIONS .................................................................................................... 105
3.2.1 Task 2A. Use of Modified vs. Unmodified Asphalt Emulsions ........................................... 105
3.2.2 Task 2B. Identifying and Specifying Polymer Percentages ............................................... 107
3.2.3 Task 2C. Projected Performance and Cost ........................................................................ 108
3.2.4 Task 2D. Further Investigation ........................................................................................... 108
Delayed Acceptance - Approved Supplier Certification................................................................................ 109
Strawman “Report Only” Draft Specification ................................................................................................ 109
Design and Performance Testing ................................................................................................................ 111
Leveraging Resources and Information Sharing .......................................................................................... 112
Other Data Gaps and Future Work .............................................................................................................. 113
4.0 PME TESTING PLAN AND STRAWMAN SPECIFICATION ...................................................... 115
4.1 STRAWMAN SPECIFICATION FOR EMULSION RESIDUES ................................................................. 115
4.2 TESTING PLAN ........................................................................................................................... 115
5.0 REFERENCES ............................................................................................................................. 119
LIST OF TABLES
Table 1: Types and Classifications of Polymer Modifiers .......................................................................... 10
Table 2: Polymer Modification Methods and Dosages .............................................................................. 28
Table 3: Asphalt Properties and Pavement Performance (58) .................................................................. 43
Table 4: Recommended SPG Limiting Values (57) ................................................................................... 51
Table 5: Summary of M 208/140 Specifications ........................................................................................ 52
Table 6: Predicted Service Life (years) After Khosla (64) ......................................................................... 53
Table 7: Schulze-Breuer-Ruck Test Results (40) ...................................................................................... 64
Table 8: Federal Lands Traffic Volume Classification (73) ........................................................................ 66
Table 9: Chip Seal Maximum Traffic Volumes (68) ................................................................................... 67
Table 10: Physical Properties and Deformation Results (76) .................................................................... 70
Table 11: Examples of EAC Cost-Effectiveness ........................................................................................ 76
Table 12: Comparison of Chip Seal Aggregate Quality Specs .................................................................. 90
Table 13: FL Table 703-7 Target Value Ranges for Single and Multiple Course Surface Treatment
Aggregate Gradation .......................................................................................................................... 92
Table 14: CALTRANS Chip Seal Screenings Sizing ................................................................................. 92
Table 15: TxDOT Aggregate Gradation Requirements (Cumulative % Retained 1 ) .................................. 93
Table 16: Comparison of Slurry Seal Aggregate Quality Specifications .................................................... 95
Table 17: Comparison of Microsurfacing Aggregate Quality Specifications ............................................... 96
Table 18: Comparison of Slurry Seal & Microsurfacing Aggregate Gradation & Application Rates .......... 97
Table 19: TxDOT Microsurfacing Aggregate Gradation Requirements Tex-200-F, Part II (Washed) ........ 97
Table 20: TxDOT Microsurfacing JMF Requirements ............................................................................... 97
Table 21: Report Only Performance Tests (83) ....................................................................................... 100
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