Upload
annona
View
31
Download
0
Embed Size (px)
DESCRIPTION
Iowa DOT Developmental Specifications for Recycled Asphalt Shingles. Scott Schram, Ph.D., P.E. Iowa DOT Bituminous Engineer 5/26/2010. Outline. Background Specification Development Upcoming Projects. RAS Processing Models. RAS Processing Models. RAS Processing Models. - PowerPoint PPT Presentation
Citation preview
BackgroundBackground Specification DevelopmentSpecification Development Upcoming ProjectsUpcoming Projects
DOT
DNR
OSHA
IDED
1.1. Source requirementsSource requirements
2.2. Material requirementsMaterial requirements
3.3. End User requirementsEnd User requirements
Raw Shingle MaterialRaw Shingle Material Pre-processing = sorting, removal of wastePre-processing = sorting, removal of waste
Asbestos remediation (testing, rejection of Asbestos remediation (testing, rejection of loads)loads)
Processed RASProcessed RAS GradationGradation
Deleterious Content (<1.5%)Deleterious Content (<1.5%)
Moisture (for information only)Moisture (for information only)