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Appendix B - Survey Responses
Pages 84-99

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From page 84... ... The second section of the appendix contains the summary of detailed survey responses on a question-by-question basis rolled up as appropriate for each question. APPENDIX B Survey Responses Reason to Seal Traffic Design Binders Performance Arizona Distress ADT<2,000 Empirical AC15-TR, CRS-2H Fair Arkansas Wearing Surface ADT<5,000 Asphalt Institute CRS-2P Excellent Alaska Wearing Surface ADT<20,000 Emp./McLeod HFMS-2P, CRS-2P Good California Water Infiltration ADT>20,000 None CRS-2P Good Colorado Wearing Surface ADT>20,000 None HFRS-2P Excellent Connecticut ADT<5,000 None CRS-2 Good Georgia ADT<2,000 None AC20, CRS-2H Good Idaho Skid Resistance ADT<5,000 Mod. Read the entire page →
From page 85... ... (All international responses are converted from metric to lane-miles.) Reason to Seal Traffic Design Binders Performance Alberta Wearing Surface McLeod CRS Unacceptable British Columbia Wearing Surface ADT<20,000 McLeod HF150, HF150P Manitoba Water Infiltration ADT<20,000 McLeod HFRS Good New Brunswick Asphalt Institute CRS, HFRS Newfoundland Illumination ADT<2,000 None Polymer Modified Fair Nova Scotia ADT<5,000 None CRS-2P, HF-150S Good Ontario Surface Condition ADT<2,000 Visual (own) Read the entire page →
From page 86... ... 150 k–80 mi 500 k–7.5 mi NR NR NR NR U.S. Canada Australia N.Z. Read the entire page →
From page 87... ... Distress 9 1 0 0 0 0 Water Infiltration 7 2 1 0 0 1 Oxidation 5 0 0 0 0 0 Skid Resistance 2 0 1 1 0 1 Wearing Surface 8 1 0 1 0 0 U.S. Canada Australia N.Z. Read the entire page →
From page 88... ... United States Canada Kearby/Modified Kearby 2 0 McLeod/Asphalt Institute 3 4 Own Method 5 3 Empirical/Past Experience 10 0 No Design 7 2 17. Design criteria used in design method. Read the entire page →
From page 89... ... Cities Yes 18 7 4 2 1 1 1 No 15 2 0 0 0 0 7 25. How many contractors bid on your jobs? Read the entire page →
From page 90... ... Cities Yes 6 8 2 1 1 1 5 No 26 1 0 0 0 0 2 28. Typical construction season: Variable by region; generally runs from April through September with southern states running about 1 month longer than northern states. Read the entire page →
From page 91... ... Yes 20 3 2 2 1 1 No 15 5 2 0 0 0 38. Do you use precoated aggregate with asphalt cement chip seals? Read the entire page →
From page 92... ... (Check all that apply.) United States Canada Hot Applied Asphalt Cements 3 0 Conventional Emulsions 36 9 Polymer-Modified Emulsion 36 8 High Float Emulsions 6 4 43. Read the entire page →
From page 93... ... Pneumatic 36 8 3 2 1 1 Static Steel 0 5 0 1 0 0 Vibratory Steel 2 2 0 0 0 1 Combination 8 2 0 1 0 0 Pneumatic/Steel Rubber-Clad Steel 0 1 2 0 0 1 50. Any proprietary specifications for equipment? Read the entire page →
From page 94... ... Time Range (min) Immediate– Immediate Immediate– NR NR NR 5 min 3 min 56. Read the entire page →
From page 95... ... 29 28 NR NR NR 20 25 63. What is the typical time span between final rolling and opening to reduced speed traffic? Read the entire page →
From page 96... ... Cities Percent Fracture 23 9 1 1 0 0 2 Flakiness 9 4 4 1 1 1 3 Decant 5 1 1 0 0 0 4 Anti-Strip 13 5 1 2 0 0 3 Presence of Clay 14 4 0 0 0 0 2 Sodium Sulfate Loss 10 1 1 0 0 1 1 Other LA abrasion LA abrasion ALD Polished Hardness Polished in in in stone and stone value, 8 states 3 provinces 4 responses value durability LA abrasion 68. Do you perform any field tests to monitor the quality of the binder? Read the entire page →
From page 97... ... 72. Beyond calibration of chip spreader and binder distributors, do you perform any other field tests to check material application rates? Read the entire page →
From page 98... ... Weather 27 7 3 2 1 1 Insufficient Rolling 7 3 1 1 0 0 Improper Binder 21 6 3 2 1 1 Application Rate Improper Aggregate Rate 16 4 1 2 0 0 Aggregate Spread Early 4 0 0 0 0 0 Aggregate Spread Late 11 0 1 1 1 0 Dirty or Dusty Aggregate 22 4 3 2 1 1 Aggregate Gradation 8 0 0 1 0 0 Improper Binder 8 2 0 1 0 0 Viscosity Improper Binder Temp. Read the entire page →
From page 99... ... Crack Sealing 28 6 2 2 1 0 Chip Seal Patch 5 3 1 2 1 0 Sanding/Chat 5 0 0 0 0 1 Lime Slurry 0 0 0 0 0 0 Fog Seal 14 0 0 0 1 Local Strengthening 4 2 0 1 1 0 Patching (other) Read the entire page →

From page 84...

... The second section of the appendix contains the summary of detailed survey responses on a question-by-question basis rolled up as appropriate for each question. APPENDIX B Survey Responses Reason to Seal Traffic Design Binders Performance Arizona Distress ADT<2,000 Empirical AC15-TR, CRS-2H Fair Arkansas Wearing Surface ADT<5,000 Asphalt Institute CRS-2P Excellent Alaska Wearing Surface ADT<20,000 Emp./McLeod HFMS-2P, CRS-2P Good California Water Infiltration ADT>20,000 None CRS-2P Good Colorado Wearing Surface ADT>20,000 None HFRS-2P Excellent Connecticut ADT<5,000 None CRS-2 Good Georgia ADT<2,000 None AC20, CRS-2H Good Idaho Skid Resistance ADT<5,000 Mod.

Appendix B - Survey Responses Pages 84-99

Appendix B - Survey Responses
Pages 84-99