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Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Project VideoconferenceProject Videoconference
September 15, 2005September 15, 2005
Slurry/Micro Mix Design ProcedureSlurry/Micro Mix Design Procedure
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Videoconference OutlineVideoconference Outline
Roll Call and Introductions-HollandRoll Call and Introductions-HollandProject Goals, Objectives, Project Goals, Objectives,
Timeline- MoulthropTimeline- MoulthropPhase III – Design Validation & Phase III – Design Validation &
Training Training Activities-Moulthrop/SeedsActivities-Moulthrop/Seeds
Phase II - Improved Mix Design Phase II - Improved Mix Design Activities -HolleranActivities -Holleran
Wrap Up including next meeting- Wrap Up including next meeting- HollandHolland
Q/A session-Holland Q/A session-Holland
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Introduction to ProjectIntroduction to Project
GoalsGoalsDevelop, Analyze, and Validate an Develop, Analyze, and Validate an
improved mix design procedure for improved mix design procedure for slurry surfacingsslurry surfacings
Objectives/TasksObjectives/TasksPhase 1-Literature review and work Phase 1-Literature review and work
plan development plan development Phase 2-Laboratory phasePhase 2-Laboratory phasePhase 3-Field validation, Guidelines, Phase 3-Field validation, Guidelines,
and Specifications and Specifications
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Videoconference GoalsVideoconference Goals
GoalsGoalsDiscuss the selection of trial Discuss the selection of trial
projects for 2006 construction projects for 2006 construction seasonseason•Selection guidelinesSelection guidelines
Discuss the current Phase II workDiscuss the current Phase II work
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Phase III ActivitiesPhase III Activities
Project Selection Project Selection GuidelinesGuidelinesCandidate Field Candidate Field SitesSitesConstruction and Construction and monitoring of sitesmonitoring of sitesSpecificationsSpecificationsReference Reference ManualManual
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Need sites NOWNeed sites NOW
Construction Construction isis planned for planned for 20062006
Funding of sites needs to be Funding of sites needs to be secured in advancesecured in advance
Fugro needs to be involved Fugro needs to be involved with site selectionwith site selection
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Project Selection - Step 1Project Selection - Step 1
The States are responsible for the The States are responsible for the following activities:following activities:
Nomination of test sitesNomination of test sitesConstruction of test sectionsConstruction of test sectionsProvision of traffic control for all test Provision of traffic control for all test
site data collectionsite data collectionReporting as-built construction dataReporting as-built construction dataReporting structural information Reporting structural information
(cross section thickness/material)(cross section thickness/material)Reporting maintenance activitiesReporting maintenance activitiesReporting friction resistance if Reporting friction resistance if
availableavailable
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Project Selection - Step 2Project Selection - Step 2
Development of experimental plans and Development of experimental plans and designdesign
Coordination among participating Coordination among participating agenciesagencies
Final acceptance of nominated test sitesFinal acceptance of nominated test sites Development of uniform data collection Development of uniform data collection
guidelines and formsguidelines and forms Coordination of material sampling and Coordination of material sampling and
testingtesting Monitoring pavement performanceMonitoring pavement performance Data analysis and reportingData analysis and reporting Review of material mix designs and Review of material mix designs and
construction plansconstruction plans
The Research Team is responsible for:
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Site Selection GuidelinesSite Selection Guidelines
Variables to considerVariables to considerTrafficTrafficClimateClimatePavement Surface and Pavement Surface and
conditionconditionGeometryGeometryLengthLengthSection LayoutSection Layout
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Site Selection GuidelinesSite Selection Guidelines
TrafficTraffic Two levels-high and moderateTwo levels-high and moderateHigh->25,000 ADT (>10 million High->25,000 ADT (>10 million
ESALs)ESALs)Moderate->10,000 <25,000 Moderate->10,000 <25,000
ADT (4-10 million ESALs over ADT (4-10 million ESALs over 20 years w/ 10% trucks20 years w/ 10% trucks
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Site Selection GuidelinesSite Selection Guidelines
ClimateClimate
Four LTPP regionsFour LTPP regions•Wet FreezeWet Freeze
•Wet No-FreezeWet No-Freeze
•Dry FreezeDry Freeze
•Dry No-FreezeDry No-Freeze
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Site Selection GuidelinesSite Selection Guidelines
ClimateClimate
Goal-Projects in each region
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Site Selection GuidelinesSite Selection Guidelines
Pavement SurfacePavement SurfaceBituminous Concrete (HMA)Bituminous Concrete (HMA)Portland Cement Concrete Portland Cement Concrete
(PCC)(PCC)• Provided the agency permits Provided the agency permits
placement of bituminous placement of bituminous products on PCC pavementsproducts on PCC pavements
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Example Project Nomination Example Project Nomination FactorialFactorial
Pavement Surface Climatic Region Traffic Level Project Name
Moderate Project 1 Project 2
Region 1
High Project 3 Project 4
Moderate Project 5 Project 6
Asphalt Concrete
Region 2
High Project 7 Project 8
Moderate Project 9 Project 10
Region 1
High Project 11 Project 12
Moderate Project 13 Project 14
Portland Cement Concrete
Region 2
High Project 15 Project 16
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Desired CharacteristicsDesired Characteristics
Adequate LengthAdequate LengthTo accommodate the number To accommodate the number
and length of test sectionsand length of test sections
Uniform TrafficUniform TrafficAs much as possibleAs much as possible
Pavement GeometryPavement GeometryHorizontal curves =/< 3Horizontal curves =/< 3°°Vertical grades =/< 4%Vertical grades =/< 4%
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Site Selection GuidelinesSite Selection Guidelines
Pavement ConditionsPavement ConditionsLittle distress, but uniform Little distress, but uniform
(raveling, bleeding, transverse (raveling, bleeding, transverse cracks)cracks)
Rutting > 1” unacceptableRutting > 1” unacceptableRide quality - < 100”/mileRide quality - < 100”/mileNo moisture damageNo moisture damage5 years remaining service life5 years remaining service lifeFWD testing if available-SCI < FWD testing if available-SCI <
20 at 9k lbs. load20 at 9k lbs. load
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Recommended Pilot Project LayoutRecommended Pilot Project Layout
152-m (500-ft) section placed using the ISSA (International Slurry Surfacing Association) mix design procedure 152-m (500-ft) control section, with no treatment 152-m (500-ft) section placed using the Slurry Systems Mix Design (SSMD) developed in this project Second 152-m (500-ft) ISSA section Second 152-m (500-ft) control section Second 152-m (500-ft) SSMD section Transition zones of 30 m (100 ft) lengths (minimum) are used before and after each section
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Recommended Pilot Project LayoutRecommended Pilot Project Layout
Lane
Widt
h
Trans
ition
ISSA
Trans
ition
Contr
ol
Trans
ition
New
Mix
Desig
n
Trans
ition
ISSA
Trans
ition
CONT
ROL
Trans
ition
New
Mix
Desig
n
Trans
ition
100 ft 500 ft 100 ft 500 ft 100 ft 500 ft 100 ft 500 ft 100 ft 500 ft 100 ft 500 ft 100 ft30 m 152 m 30 m 152 m 30 m 152 m 30 m 152 m 30 m 152 m 30 m 152 m 30 m
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Key Training DeliverablesKey Training Deliverables
1.5-Day Training CourseReference ManualVisual AidsInstructors Guide
Pre-Job Training Module
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Reference ManualReference Manual
ChapterChapter Title/DescriptionTitle/Description DraftDraft
11 IntroductionIntroduction
22 Project Selection CriteriaProject Selection Criteria
33 Pre-Construction RequirementsPre-Construction Requirements
44 SpecificationsSpecifications
55 Mix Design CriteriaMix Design Criteria
66 Test Methods and ProceduresTest Methods and Procedures
77 Construction Considerations and LimitationsConstruction Considerations and Limitations
88 Construction OperationsConstruction Operations
99 QC/QA RequirementsQC/QA Requirements
1010 TroubleshootingTroubleshooting
App AApp A Test MethodsTest Methods
App BApp B SpecificationsSpecifications
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Phase III – Remaining WorkPhase III – Remaining Work
Training – Complete 1.5-day Training Course materials and Pre-Job Module
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Phase II Progress ReportPhase II Progress Report
SubtasksSubtasksDevelop and Evaluate new or Develop and Evaluate new or
improved test proceduresimproved test proceduresAnalyze the results of the test Analyze the results of the test
methodsmethodsPrepare test protocolsPrepare test protocolsConduct ruggedness testing of Conduct ruggedness testing of
equipmentequipment
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Phase II TimelinePhase II Timeline
Revised Phase II Timeline
J F M A M J J A S O N D J F M A M J J A S O N D J F M
Equipment Procurement / Modification
Samples Procurement
Materials Testing
Mix Testing / Test Development
Cohesion Testing / French WTAT Development
Long Term Testing
Finalization of Mix Design
Field Test Development / Constructability
Design for Field TrialsOriginal Phase II Timeline Revised Phase II Timeline
Revised Phase II Timeline, 4/15/05
20062004 2005Activity
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Testing PhilosophyTesting PhilosophyWhat do existing tests tell us?What do existing tests tell us?Proposed New TestsProposed New Tests
Laboratory Phase OutlineLaboratory Phase Outline
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Philosophy Of ApproachPhilosophy Of Approach
Performance Related TestsPerformance Related TestsAddress Failure ModesAddress Failure ModesSimulate Field ConditionsSimulate Field ConditionsMeasures Cohesion, Adhesion and Abrasion Measures Cohesion, Adhesion and Abrasion
ResistanceResistance Stages to be evaluatedStages to be evaluated
• MixingMixing• Setting and CuringSetting and Curing• Long Term PerformanceLong Term Performance
Tests that can be used for all slurry Tests that can be used for all slurry systems and to evaluate mix variablessystems and to evaluate mix variables
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
New Mix Design ProcedureNew Mix Design Procedure
Will it Mix?Will it Mix?Will it set?Will it set?Will it Perform?Will it Perform?
Properties through Properties through the stages of the the stages of the mixture’s life are mixture’s life are the key!the key!
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Drawbacks of the Current SystemDrawbacks of the Current System
Technology and reproducibility of testsTechnology and reproducibility of testsLimited data set (aggregates and Limited data set (aggregates and
binders)binders) Inability to simulate road conditionsInability to simulate road conditions Inability to address various traffic Inability to address various traffic
conditionsconditions
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
New Mix Design Procedure New Mix Design Procedure
Materials SelectionMaterials SelectionCreate Matrix of Mix ProportionsCreate Matrix of Mix Proportions
Measure Short Term Constructability Measure Short Term Constructability Select Optimum binder propertiesSelect Optimum binder properties
Measure Long Term PerformanceMeasure Long Term PerformanceIterative process- feedback Iterative process- feedback
controlledcontrolledEvaluate finished product using Evaluate finished product using
field control testsfield control tests
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Aggregate TestsAggregate Tests
Sieve AnalysisSieve AnalysisSand EquivalentSand EquivalentAbrasion Resistance by Los Angeles Abrasion Resistance by Los Angeles
AbrasionAbrasionSulfate SoundnessSulfate SoundnessMicro- Deval test for field abrasion Micro- Deval test for field abrasion
performance performance
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Emulsion and Binder TestsEmulsion and Binder Tests
Tests on original emulsionTests on original emulsionRecovered binder testsRecovered binder tests
Ring and Ball Softening Point, Ring and Ball Softening Point, Penetration Penetration
Potential use of DSR, BBR,DTT –Potential use of DSR, BBR,DTT –beyond the scope of project but beyond the scope of project but AEMA is pursuingAEMA is pursuing
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
New Mixture TestsNew Mixture Tests
Mixing TestMixing Test developed in developed in
GermanyGermanySetting and Setting and CuringCuring
new new developmentdevelopment
Abrasion/Abrasion/Cohesion TestCohesion Test
developed in developed in FranceFrance
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
New Mix Test New Mix Test
Allows selection and initial ratios Allows selection and initial ratios of componentsof components
Allows examination of effects of Allows examination of effects of different components and different components and additivesadditives
Relates to initial constructabilityRelates to initial constructabilityMeasures mix stiffness and effect Measures mix stiffness and effect
of mix conditionsof mix conditionsProvides the answer to ”will it Provides the answer to ”will it
mix and will it spread?”mix and will it spread?”
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Mix Test SetupMix Test Setup
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Outputs - Mixing and WorkabilityOutputs - Mixing and Workability
Stabilized - quick set Micro - fast set
9.09.0
12.0 12.0
time time
Kg
-cm
Kg
-cm
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC New Setting and Curing TestNew Setting and Curing Test
Measures cohesion build UpMeasures cohesion build UpUsed to estimate traffic timeUsed to estimate traffic timeProvides an estimate of Provides an estimate of
resistance to early trafficresistance to early trafficEvaluates the impact of Evaluates the impact of
environmental conditions environmental conditions and physical effects such as and physical effects such as compactioncompaction
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Setting and Curing Test SetupSetting and Curing Test SetupClamping Pressure 200Kpa
PC will display spread sheet to include torque time graph and calculation of peak torque.
Interface of foot with sample—this is rubber. Part of the process will use different surface types on the foot to improve grip and reproducibility.
Torque measurement taken at base close to interface. This will prevent bending in the shaft to influence results. Electronic torque (strain gauge) measurement will transmit
to PC for display.
Motorized gear shifts shaft through 180º. Allows precise application of twisting torque to measure resistance to shear
force.
Clamping Pressure 200Kpa
PC will display spread sheet to include torque time graph and calculation of peak torque.
Interface of foot with sample—this is rubber. Part of the process will use different surface types on the foot to improve grip and reproducibility.
Torque measurement taken at base close to interface. This will prevent bending in the shaft to influence results. Electronic torque (strain gauge) measurement will transmit
to PC for display.
Motorized gear shifts shaft through 180º. Allows precise application of twisting torque to measure resistance to shear
force.
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC Curing Test ResultsCuring Test Results
Cohesion results
0
5
10
15
20
25
30
35
40
0 30 60 90 O/N
time min
Cohes
ion
kg-
cm
15%
13%
17%
Will It Set ? Will it take Early traffic?Will It Set ? Will it take Early traffic?
% Emulsion
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Constructability - Short Term Constructability - Short Term Performance Test (CAT)Performance Test (CAT)
A form of cohesion test (French A form of cohesion test (French WTAT)WTAT)
Can be performed on both curing Can be performed on both curing and cured samplesand cured samples
Allows simulation of field conditions Allows simulation of field conditions and physical effects such as and physical effects such as compactioncompaction
Wheel WTAT at different cure and Wheel WTAT at different cure and soak timessoak times
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC New CAT TestNew CAT Test
Rise in Cohesion Rise in Cohesion measured for different measured for different mixes under different mixes under different curing conditionscuring conditionsUses full mix gradationUses full mix gradationCan be performed under Can be performed under waterwater
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
CAT SetupCAT Setup
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
CAT OutputCAT Output
FWTAT Mix 1 Effect Of Cure Conditions
0
100
200
300
400
500
0.5 1 1.5 2 2.5
Cure Time
Loss
g
25C
25C Hi H
35C
10C
10C Hi H
25C Compaction
Poor
Moderate
High
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
FWTAT Cure Test
0
200
400
600
800
1000
30 60 90 120
time of Cure(Min)
Loss
(g)
Std 10C Hi
Std 25C
Std40CHi
Std 40C
Std10CHi
Std 10C
B25C Hi
B25C
B25C
B40CHi
B40C
B10CHi
B10C
CAT Output- Different MixesCAT Output- Different Mixes
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Non CohesiveNon Cohesive
CAT ProcessCAT Process
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Progress to DateProgress to DateMixes selected have been Mixes selected have been
characterized by existing ISSA characterized by existing ISSA Technical BulletinsTechnical Bulletins
Component materials have been Component materials have been characterized characterized
Preliminary testing on wet Preliminary testing on wet cohesion and sample conditioning cohesion and sample conditioning methods has been donemethods has been done
Equipment has been procured, Equipment has been procured, designed and constructeddesigned and constructed
Preliminary testing and Preliminary testing and modifications have been mademodifications have been made
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Progress to Date (cont.)Progress to Date (cont.)
CAT-formerly French WTAT final CAT-formerly French WTAT final procedure establishedprocedure establishedThicker samples are produced with the entire Thicker samples are produced with the entire
aggregate gradation aggregate gradation
Mix test equipment programmed and Mix test equipment programmed and operationaloperationalClassification of mixes based on mixing torque Classification of mixes based on mixing torque
developeddevelopedMixing bowl and stirrer geometry establishedMixing bowl and stirrer geometry established
Micro Deval equipment procuredMicro Deval equipment procured Continuing problems with procuring Continuing problems with procuring
equipment for the setting and curing testequipment for the setting and curing test
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Phase II Remaining workPhase II Remaining work
Complete the testing matrix Complete the testing matrix of slurry system mixturesof slurry system mixtures
Finalize mix design Finalize mix design procedureprocedure
Prepare test protocolsPrepare test protocolsConduct ruggedness testingConduct ruggedness testingFinalize field testsFinalize field testsPrepare summary reportPrepare summary report
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Catch up planCatch up plan
Issues to accelerate lab workIssues to accelerate lab workIncrease laborIncrease laborPhilosophy used on real Philosophy used on real
projectsprojectsEquipmentEquipment
Work will be accomplished Work will be accomplished by 12-05by 12-05
Mix Designs for field trials to Mix Designs for field trials to be done by 1 March 2006be done by 1 March 2006
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Strawman Spec v. 3Strawman Spec v. 3Hi Med Low Hi Med Low Hi Normal
35 C 25 C 10 C 90% 50%
PFS-1 (Mixing)Mixing Torque - maximum kg-cm 9 9 9 9 9 9 9 9Mixing time - minimum sec. 120 120 120 120 120 120 120 120
Spread index - maximum @ 120 sec. kg-cm 12 12 12 12 12 12 12 12
Blot test - 30 sec. -clear water
clear water
N/Aclear water
clear water
clear water
clear water
clear water
Coating - 100% 100% 95% 95% 95% 100% 100% 95%PFS-2 (Wet Cohesion)30 min. cohesion - minimum kg-cm 12 12 12 12 12 12 12 1260 min. cohesion - minimum kg-cm 23 20 20 20 20 20 20 2090 min. cohesion - minimum kg-cm 25 25 25 25 25 25 25 2512 hr. cohesion - minimum kg-cm 28 28 28 28 28 28 28 28PFS-3 (Abrasion Loss)
30 min. loss - maximum g/m2 200 200 400 300 300 300 300 300
1hr. loss - maximum g/m2 100 100 300 100 200 100 100 2003 hr. loss - maximum g/m2 100 100 200 100 100 100 100 100
PFS-1 (Mixing)Mixing Torque - maximum kg-cm 9 9 9 9 9 9 9 9Mixing time - minimum sec. 120 120 120 120 120 120 120 120
Spread index - maximum @ 120 sec. kg-cm 12 12 12 12 12 12 12 12
Blot test - 30 sec. -clear water
clear water
N/Aclear water
clear water
clear water
clear water
clear water
Coating - 100% 100% 95% 95% 95% 100% 100% 95%PFS-2 (Wet Cohesion)30 min. cohesion - minimum kg-cm 12 12 12 12 12 12 12 1260 min. cohesion - minimum kg-cm 23 20 20 20 20 20 20 2090 min. cohesion - minimum kg-cm 25 25 25 25 25 25 25 2512 hr. cohesion - minimum kg-cm 28 28 28 28 28 28 28 28PFS-3 (Abrasion Loss)
30 min. loss - maximum g/m2 200 200 400 300 300 300 300 300
1hr. loss - maximum g/m2 100 100 300 100 200 100 100 2003 hr. loss - maximum g/m2 100 100 200 100 100 100 100 100
Slow
Test or field Condition UnitsSet TimeTraffic Temperature Humidity
Rapid
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Phase II DeliverablesPhase II Deliverables
Improved mix Improved mix design design procedures and procedures and performance performance teststestsField test Field test equipment & equipment & proceduresproceduresField Validation Field Validation of mix design of mix design procedureprocedure
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Project SummaryProject Summary
Phase I is completePhase I is completePhase II is behind schedule, but Phase II is behind schedule, but
plans have been made to plans have been made to complete work by Dec 05complete work by Dec 05
Phase III is underway, but we Phase III is underway, but we need candidates for field projectsneed candidates for field projects
Pilot projects are to be Pilot projects are to be constructed in 2006 so they have constructed in 2006 so they have at least one year to be monitored at least one year to be monitored for performancefor performance
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Wrap-upWrap-up
Next panel meetingNext panel meetingWhen When Will a teleconference workWill a teleconference workJoint Industry meeting in Palm Springs?Joint Industry meeting in Palm Springs?
Need for improved Need for improved communications – Industry is communications – Industry is concernedconcerned
Other issues?Other issues?
Caltrans Caltrans Contract No. 65A0151Caltrans Caltrans Contract No. 65A0151
MACTEC
Question/ Answer PeriodQuestion/ Answer Period
Posting of progress reports on Posting of progress reports on FP2 website?FP2 website?
Concern over progress Concern over progress addressed? Plans developed to addressed? Plans developed to accelerate lab workaccelerate lab work
Need for field projectsNeed for field projectsOther issues to be resolvedOther issues to be resolved