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FAA AC 150/5370-10H Draft
Principal Changes
2018 Indiana Chapter ACPA
Workshop
Indianapolis, IN
Gary L. Mitchell, P.E.
Vice President
American Concrete Pavement
Association
Credits
Doug Johnson and Greg Cline – FAA pavement
engineers
Slides based on a presentation Doug Johnson
gave at the ACPA Annual Meeting in 2017
Based on collaboration with Doug and Greg
during drafting the proposed specification
Industry acknowledges their willingness to work
with numerous associations
Overview
➢ Updated References
➢ Extensive technical and editorial
edits
➢ Added New Specs
➢ Added payment for Contractor
Quality Control
➢ Control Strips with most all P
specs
➢ 501 numerous changes
Collaboration with Industry
Collaboration with Industry
American Concrete Paving Association (ACPA)
Airports Consultant Council (ACC)
National Stone Sand Gravel Association (NSSGA)
Geosynthetic Materials Association (GMA)
American Society of Civil Engineers (ASCE)
Asphalt Institute (AI)
Part 1: General Provisions
Section 10 New Definitions
Certificate of Analysis (COA)
Certificate of Compliance (COC)
Modification of Standards (MOS)
Contractor Laboratory now Contractors
Quality Control (QC)Facilities
Laboratory now Quality Assurance
(QA)Laboratory
Part 2: General Construction
Item 100 Contractor Quality Control Program
(CQCP)
Encouraged for all projects
Required >$500K in paving
Assure continuous monitoring of quality of
materials and production
Establish corrective action plans
(NEW) Pay Item for CQCP
Item C-100
Item C-100
Contractor Quality Control Program
More than test results:
Materials,
equipment,
workmanship,
Inspection and QC testing
and documentation
Corrective Action Plans
Plan ahead of what to do when QC & QA criteria not
met
Control Strips
Control Strip all P Specs
Earthwork, Aggregates, Surface Courses
Demonstrate
Material, Equipment and Construction Processes
meet requirements of the specification
Best interest of everyone
Part 3: Sitework
P154
Clarified how to use RAP in subbase
as well as recycled concrete pavement
Control Strip
P155-6.4 Lime Treated Subgrade
Control Strip to demonstrate materials,
equipment and process
Part 3: Sitework
P156 Cement Treated Subgrade
New specification for modification of
subgrade
P157 [Cement][Lime] Kiln Dust
Treated Subgrade
Added option for use of either CKD or
LKD
Part 4: Base Courses
P207 Full Depth Reclamation (FDR) Recycled
Asphalt Aggregate Base Course
New Specification
How it will perform f(Amt HMA,
Condition HMA, Amt Aggregate, Use of
Stabilizing Agent)
Better P154, Maybe than 209 (if
stabilizing agent)
Control Strip
In response to most common MOS
Part 4: Base Courses
P208-2.1
Added Table of Required Material
Properties
P208-2.2
Fraction passing No 200 shall not
exceed 2/3 the fraction passing No 40
P208-2.4
Option for Separation Fabric
P208-3.1
Control Strip
Part 4: Flexible Base Courses
P209-2.1Material Properties in Table Format
P209-2.2Fraction passing No 200 shall not exceed 2/3
the fraction passing the No 40
209-2.3QC for Gradation by lot
209-2.4Option for Separation Fabric
P209-3.1Control Strip
Part 5: Rigid Base Courses
P301 Cement Treated Soil-Aggregate Subbase
Course
New Title
P301-4.1
Control Strip
P304 Cement Treated Aggregate Base Course (CTB)
New title
P304-5.6
Control Strip
Part 5: Rigid Base Courses
P306-5.7 (econocrete)Control Strip
P306-6.1.3Added option to test thickness by survey
P307 Cement Treated Permeable Base
Course (CTPB)New specification
Size 67 (or 57) aggregate stabilized with cement
~ 1000 ft/day permeability
(Model as variable stabilized base in FAARFIELD)
Part 7: Rigid Pavement
P501-2.1a
Reactivity tests representative of
material sources for project
1260 and 1567 may be run concurrent
P501-2.1b
Follow ASTM C33 for fine aggregate
deleterious
No 200 no longer counted toward
deleterious
Total deleterious limited to 1.0%
Part 7: Rigid Pavement
P501-2.1c
Engineer selects maximum size
aggregate based upon thickness and
what is available in area
Deleterious
Material finer No 200 up to 1.5 if material
is dust of fracture
Methylene blue or Xray diffraction
Max deleterious – 3.8% (fracture dust)
Part 7: Rigid Pavement
P501-2.1d
Combined Aggregate Gradation
Contractor submits PCC
combined Gradation
P501-3.3 Proportions
w/c between .38 - .45 by weight
Slump
2” Slip Form
3” Fixed Form
4” Hand Placement
Part 7: Rigid Pavement
P501-3.4 Mix Design
Generally 3 mix designs
Slip Form
Fixed Form
Hand Placement
Contractor selects Air Content needed
based upon maximum aggregate size
and environmental condition
Part 7: Rigid Pavement
P501-4.1 Control Strip
Initial 250 feet
Demonstrate
materials,
equipment and
Construction Process
P501-4.2 Equipment
Rate of vibration sufficient to
consolidate without segregation or
voids
American Concrete Institute (ACI)
309R
Part 7: Rigid Pavement
P501-4.7 Limitations on Mixing and
PlacingACI 306R Cold Weather Concreting
ACI 305R Hot Weather Concreting
Temperature Management Program
FHWA HIPERPAV 3 Example of TMP
P501-4.8 Placing concreteRate of vibration sufficient to consolidate
without segregation, voids or vibrator trails
Excessive edge slump remove area the full
width of the slip form lane
Part 7: Rigid Pavement
P501-4.10 Joints
vertical alignment
Tie and dowel bars within ¼” per foot
Dowels in hardened concrete
Spalling beyond grout retension ring must
modify equipment and operations
reapply curing compound after sawing
joints.
P501-4.11 Finishing
Straightedge testing QC
Part 7: Rigid Pavement
P501-4.19 Repair, removal or
replacement of slabsHow bad is bad
Shrinkage cracks < 1/3 slab depth cleaned and
repaired with high molecular weight methacrylate
(HMWM) or expoxy resin in presence of engineer
Cracks > 1/3 slab in interior remove and replace
Spalls < ½ slab < 25% joint length
Spall repair payment for that slab reduced by
5%
Grinding over 50% of slab 5% reduction in
payment
Part 7: Rigid Pavement
P501-5.2 Contractor Quality Control
Gradation
Moisture
Slump
Air
Unit Weight and Yield
Temperature
Smoothness
Part 7: Rigid Pavement
P501-5.4 Control Charts
Fine and Coarse Aggregate Gradation
Slump and Air
Combined Gradation
CF and WF
Part 7: Rigid Pavement
Part 7: Rigid Pavement
P501-5.5 Corrective Action
CQCP shall indicate appropriate action
P501-6.1 Acceptance Sampling and
Testing
Samples transported in molds
Curing by immersion (after 24 hours)
P501-6.2 Lot Size
2000 cubic yards
Sublots equal 400-600 cubic yards
Part 7: Rigid Pavement
P501-6.2 Acceptance Criteria
Strength
Thickness
Grade
Profiograph
Adjustments for Repairs
P501-8.1 Payment
Rejected PCC may stay in place at
50% pay with concurrence of Engineer
and FAA