Guide for Conducting Forensic Investigations of Highway Pavements (2013) / Chapter Skim
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Pages 129-135
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From page 129... ...
129 This Appendix contains examples of checklists recommended for use in forensic investigations. These checklists can be modified to suit specific agency requirements.
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From page 130... ...
130 CHECKLIST – LOGGING OF AC WEARING COURSE LAYERS Checklist #1 Parameter Evaluation Severity Extent Start End Layer Description and implications Cracking Transverse Longitudinal Fatigue Reflective Rutting - Shoving - Raveling - - - - Bleeding - Pumping - Polished aggregate - - - - Aggregate condition - - - - - Moisture condition - - - - - Pothole repair - Crack repair - CHECKLIST – LOGGING OF PCC WEARING COURSE LAYERS Checklist #2 Parameter Evaluation Severity Extent Start End Layer Description and implications Cracking Transverse Longitudinal Block Edge Corner Durability Map - Rutting (chain wear) - Scaling - - - - Spalling - - - Faulting - - - - Joint seal damage - - - Pumping - Polished aggregate - - - - Aggregate condition - - - - - Moisture condition - - - - - Alkali-silica reaction - - Corrosion - - - - Pothole repair - Crack repair -
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From page 131... ...
131 CHECKLIST – LOGGING OF BOUND LAYERS Checklist #3 Parameter Evaluation Severity Extent Start End Layer Description and Implications Cracking Horizontal Vertical Other Rutting - Pumping - Erosion - Fines intrusion - Degradation - Aggregate condition - - - - - Moisture condition - - - - - Mottling - Frost action - Layer definition - - - - - Interlayer bond - - - - - Moisture at interface - - - - - Pothole repair - Crack repair - Bleeding1 - Carbonation2 - Aggregate description Angularity Shape Color Odor HCl Reaction Consistency Cementation Structure Size range Max particle size Hardness Condition Described as per ASTM D 2488 - Description and identification of soils (visual-manual procedure) 1 Asphalt-treated base only 2 Cement treated base only
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From page 132... ...
132 CHECKLIST – LOGGING OF UNBOUND LAYERS Checklist #4 Parameter Evaluation Severity Extent Start End Layer Description and Implications Cracking Horizontal Vertical Other Rutting - Pumping - Erosion - Fines intrusion - Degradation - Aggregate condition - - - - - Moisture condition - - - - - Mottling - Frost action - Layer definition - - - - - Interlayer bond - - - - - Moisture at interface - - - - - Pothole repair - Crack repair - Aggregate description Angularity Shape Color Odor HCl Reaction Consistency Cementation Structure Size range Max particle size Hardness Condition Described as per ASTM D 2488 - Description and identification of soils (visual-manual procedure) CHECKLIST – SEVERITY AND EXTENT DESCRIPTORS FOR AC WEARING COURSE LAYER ASSESSMENT Checklist #5 Parameter Severity rating Rating description Extent description Transverse cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual Number, length Longitudinal cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual Number, length Fatigue cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual % area, depth Reflective cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual Number, length Rutting Severity not rated - Width, depth Shoving Severity not rated - % area, depth Raveling Severity not rated - % area, depth Bleeding Severity not rated - % area Pumping Severity not rated - Number, depth Polished aggregate Severity not rated - % area Aggregate condition Severity not rated - Description only Moisture condition Severity not rated - Description only Pothole repair Severity not rated - Description only Crack repair Severity not rated - Description only
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From page 133... ...
133 CHECKLIST – SEVERITY AND EXTENT DESCRIPTORS FOR PCC WEARING COURSE LAYER ASSESSMENT Checklist #6 Parameter Severity rating Rating description Extent description Transverse cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual Number, length Longitudinal cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual Number, length Block cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual % area, depth Edge cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual Number, length Corner breaks 1 - Low 2 - Moderate 3 - High Distress Identification Manual Number, depth Durability cracks 1 - Low 2 - Moderate 3 - High Distress Identification Manual % area, depth Map cracks Severity not rated - % area, depth Rutting Severity not rated - Width, depth Scaling Severity not rated - % area, depth Spalling 1 - Low 2 - Moderate 3 - High Distress Identification manual Number, depth Faulting Severity not rated - Depth Joint seal damage 1 - Low 2 - Moderate 3 - High Distress identification Manual Depth Pumping Severity not rated - Number, depth Polished aggregate Severity not rated - % area Aggregate condition Severity not rated - Description only Moisture condition Severity not rated - Description only Alkali-silica reaction Severity not rated - % area Corrosion Severity not rated - Length Pothole repair Severity not rated - Description only Crack repair Severity not rated - Description only
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From page 134... ...
134 CHECKLIST – SEVERITY AND EXTENT DESCRIPTORS FOR BOUND/STABILIZED LAYER ASSESSMENT Checklist #7 Parameter Severity rating Rating description Extent description Horizontal cracks 1 - Low 2 - Moderate 3 – High 0.25 in.
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From page 135... ...
135 CHECKLIST – INVESTIGATION CLOSURE Checklist #9 General Issues Yes No Comments 1 Has the investigation been completed in terms of the requirements of the experiment work plan? 2 Have the objectives of the investigation been met?
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