16 th annual icar symposium session c1: dot/federal agency panelists
DESCRIPTION
16 th Annual ICAR Symposium Session C1: DOT/Federal Agency Panelists. Aggregate Issues in Oklahoma Kenneth Ray Hobson, P.E. QA Engineer – Materials Division May 14, 2008. Outline. Materials Division Web Site 5 Step Review of Aggregate Information Aggregate Base Research AIMS Research - PowerPoint PPT PresentationTRANSCRIPT
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1616thth Annual ICAR Symposium Annual ICAR SymposiumSession C1: DOT/Federal Agency Session C1: DOT/Federal Agency
PanelistsPanelists
Aggregate Issues in OklahomaAggregate Issues in OklahomaKenneth Ray Hobson, P.E.Kenneth Ray Hobson, P.E.QA Engineer – Materials QA Engineer – Materials
DivisionDivisionMay 14, 2008May 14, 2008
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OutlineOutline
• Materials Division Web Site Materials Division Web Site – 5 Step Review of Aggregate Information5 Step Review of Aggregate Information
• Aggregate Base Research Aggregate Base Research • AIMS ResearchAIMS Research• Micro-Deval UsageMicro-Deval Usage
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Materials DivisionMaterials DivisionWeb Site NavigationWeb Site Navigation
for Aggregate Informationfor Aggregate Information• Step 1: Navigate to the Materials Web Step 1: Navigate to the Materials Web
SiteSite
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http://odot.org/materials
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Materials DivisionMaterials DivisionWeb Site NavigationWeb Site Navigation
for Aggregate Informationfor Aggregate Information• Step 1: Navigate to the Materials Web Step 1: Navigate to the Materials Web
SiteSite• Step 2: Navigate to Materials & TestingStep 2: Navigate to Materials & Testing
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http://odot.org/materials
/materials.htm
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Materials DivisionMaterials DivisionWeb Site NavigationWeb Site Navigation
for Aggregate Informationfor Aggregate Information• Step 1: Navigate to the Materials Web Step 1: Navigate to the Materials Web
SiteSite• Step 2: Navigate to Materials & TestingStep 2: Navigate to Materials & Testing• Step 3: View Approved Aggregate Step 3: View Approved Aggregate
MaterialsMaterials
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APL
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ALL
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Materials DivisionMaterials DivisionWeb Site NavigationWeb Site Navigation
for Aggregate Informationfor Aggregate Information• Step 1: Navigate to the Materials Web Step 1: Navigate to the Materials Web
SiteSite• Step 2: Navigate to Materials & TestingStep 2: Navigate to Materials & Testing• Step 3: View Approved Aggregate Step 3: View Approved Aggregate
MaterialsMaterials• Step 4: View Aggregate Test DataStep 4: View Aggregate Test Data
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Test Data
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Coarse Aggregate
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Coarse Agg. Data
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Materials DivisionMaterials DivisionWeb Site NavigationWeb Site Navigation
for Aggregate Informationfor Aggregate Information• Step 1: Navigate to the Materials Web Step 1: Navigate to the Materials Web
SiteSite• Step 2: Navigate to Materials & TestingStep 2: Navigate to Materials & Testing• Step 3: View Approved Aggregate Step 3: View Approved Aggregate
MaterialsMaterials• Step 4: View Aggregate Test DataStep 4: View Aggregate Test Data• Step 5: Aggregate SpecificationsStep 5: Aggregate Specifications
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Bases
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303
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Materials
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703
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Aggregate Base ResearchAggregate Base Research• Team with ODOT, Contractors and Academia (OTI)Team with ODOT, Contractors and Academia (OTI)• Design New GradationDesign New Gradation
– Require High PermeabilityRequire High Permeability– Producible Producible
• Field Test ProjectField Test Project– Control SectionsControl Sections– GeotextilesGeotextiles– Various Gradations (new and existing)Various Gradations (new and existing)– Test at Various Stages Test at Various Stages
• Constructed at the University of OklahomaConstructed at the University of Oklahoma
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AIMS ResearchAIMS Research• Researchers at the University of OklahomaResearchers at the University of Oklahoma
– Dr. Zaman, Dr. Laguros and Ashish GuptaDr. Zaman, Dr. Laguros and Ashish Gupta• Coarse AggregateCoarse Aggregate
– Quantify: 3-d Shape, Angularity and TextureQuantify: 3-d Shape, Angularity and Texture– Sizes 4.75 - 37.5 mmSizes 4.75 - 37.5 mm
• Fine AggregateFine Aggregate– Quantify: 3-d Shape and AngularityQuantify: 3-d Shape and Angularity– Sizes 4.75 – 0.15 mmSizes 4.75 – 0.15 mm
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Micro-Deval UsageMicro-Deval Usage• Adopted in 2003 by Special Provision for HMAAdopted in 2003 by Special Provision for HMA
– Max Loss of 25 for 30 Million ESALsMax Loss of 25 for 30 Million ESALs• Paper and Field Performance Reviewed to set Paper and Field Performance Reviewed to set
SpecificationSpecification– In-House Research Varied Temperature, In-House Research Varied Temperature,
Loading and GradationLoading and Gradation• Change is not Easily AcceptedChange is not Easily Accepted• AASHTO Standard to be RevisedAASHTO Standard to be Revised