iowa dot developmental specifications for recycled asphalt shingles
Post on 09-Feb-2016
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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
TRANSCRIPT
BackgroundBackground Specification DevelopmentSpecification Development Upcoming ProjectsUpcoming Projects
DOT
DNR
OSHA
IDED
1.1. Source requirementsSource requirements2.2. Material requirementsMaterial requirements3.3. 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)
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