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