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Contract No
...
XX
Attachment
Page 1 of 21

10-1
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For Department-approved WMA technologies, go to:
http://www
...
ca
...

AASHTO T 324 (Modified) is AASHTO T 324, "Hamburg Wheel-Track Testing of Compacted
Hot Mix Asphalt (HMA)," with the following parameters:
1
...

3
...

5
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Target air voids is 7±1 percent
4 test specimens
6-inch gyratory compacted test specimen
Test temperature is 122±2 °F
Impression measurements at every 100 passes
Inflection point as the number of wheel passes at the intersection of the creep slope and
the stripping slope
...
Testing shut off after 25,000 passes
8
...
1 Superpave Gyratory Compactor ram pressure may be increased to a maximum 825
kilopascals
...
2 Specimens may be held at a constant height for a maximum of 90 minutes
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Definitions
WMA: HMA produced at temperatures no greater than 275 °F
...

Submittals
General
With your JMF submittal, submit:
1
...
1
...
XX-XXXXXX
CCO No
...
2
...
3
...
4
...
5
...
For WMA additive technology:
2
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Name of technology
2
...
Percent admixture by weight of binder and percent admixture by total weight of
HMA as recommended by the manufacturer
2
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Methodology for inclusion of admixture in laboratory produced HMA
2
...
Proposed HMA production temperature range
3
...
California Test 371 test results for tensile strength ratio for untreated plant produced
HMA
5
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California Test 371 test results for treated plant produced HMA if untreated plant
produced HMA test result determined under California Test 371 is below the specified
HMA mix design requirements
7
...
AASHTO T 324 (Modified) test results data showing number of passes at inflection point
for plant produced HMA
...

Identify each participant's name, employer, title, and role in the production and placement of
WMA or HMA with WMA technology
...

With the JMF submittal, at JMF verification, at production start-up, and for each 10,000 tons of
HMA produced, submit the California Test 371 test results and AASHTO T 324 (Modified) test
results for mix design and production to the Engineer and electronically to:

Contract No
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XX
Attachment
Page 3 of 21
Moisture_Tests@dot
...
gov
With the JMF submittal, at JMF verification, at production start-up evaluation, and for each
10,000 tons of HMA produced, submit one tested sample set from AASHTO T 324 (Modified)
test to the Engineer
...

Quality Control and Assurance
Technical Representative
A technical representative from the WMA technology supplier must be present during the first 3
days of production and placement of WMA or HMA using WMA technology
...
The technical
representative must direct the HMA mix operation as it relates to the WMA technology
...
HMA plant modifications and WMA technology equipment, scales, and meters must
comply with Department's Materials Plant Quality Program (MPQP)
...
Make
arrangements for the conference facility
...
HMA production and placement
2
...
Contingency plan
The following personnel must attend the prepaving conference:
1
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3
...

5
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7
...
XX-XXXXXX
CCO No
...
5 inch
AASHTO
average rut depth)
T 324
PG-58
(Modified)
PG-64
First
PG-70
production
PG-76
day and 1
Hamburg wheel track
per every
(inflection point
10,000 tons
minimum number of
AASHTO
passes)
T 324
PG-58
(Modified)
PG-64
PG-70
PG-76
Notes:
a
Submit test data and 1 tested sample set
...
See
California
Test 125

15 days

Loose mix
behind the
paver
...

Engineer's Acceptance
The Engineer samples HMA for acceptance testing and tests for the following additional quality
characteristic:

Contract No
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XX
Attachment
Page 5 of 21
HMA Acceptance
Quality characteristic

Test method

Requirement
HMA Type
B
RHMA-G

Sampling
location

A
Moisture susceptibility
Loose mix
(minimum dry strength,
California Test 371
120
120
120
behind the
psi)
paver
...
5 inch average
rut depth)
AASHTO T 324
10,000
10,000
15,000
PG-58
(Modified)
15,000
15,000
20,000
PG-64
Loose mix
20,000
20,000
25,000
PG-70
behind the
25,000
25,000
-PG-76
paver
...


MATERIALS
Foaming Bitumen
When water injection is used by the WMA technology, the foamed bitumen must have the
following quality characteristics:
Quality Requirements for Foaming Bitumen
Quality characteristic
Test method
Expansion ratio (minimum)
Laboratory Procedure-12
Half life
Laboratory Procedure-12
(seconds minimum)

For Laboratory Procedure 12 (LP-12), go to:
http://www
...
ca
...
htm

Requirement
4
4

Contract No
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XX
Attachment
Page 6 of 21
Hot Mix Asphalt
Mix Design
For WMA additive technology, produce HMA mix samples for your mix design using your
methodology for inclusion of WMA admixture in laboratory produced HMA
...

HMA mix design must meet the following quality characteristics:
Quality characteristic

Hot Mix Asphalt Mix Design Requirements
Test method
HMA Type
A
B
California Test
120
120
371
California Test
70
70
371

Moisture susceptibility
(minimum dry strength, psi)
Moisture susceptibility
(tensile strength ratio, %)
Hamburg wheel track
(minimum number of passes at 0
...
Choose from the antistrip
treatments based on plasticity index in compliance with:
Hot Mix Asphalt Antistrip Treatment Options
Quality characteristic
Test method
Treatment requirement
Plasticity index
Plasticity index from 4 to 10 a

Plasticity index less than 4

Dry hydrated lime with marination
Lime slurry with marination
California Test
204

Liquid Antistrip
Dry hydrated lime without marination
Dry hydrated lime with marination
Lime slurry with marination

Notes:
a
If the plasticity index is greater than 10, do not use that aggregate blend
...
XX-XXXXXX
CCO No
...
HMA aggregate lime treatment – slurry method
2
...
Liquid antistrip treatment using 0
...

Use the optimum bitumen content (OBC) specified on your CEM-3512
...
When RAP is used, the asphalt binder set point for HMA must be the OBC specified
on your CEM-3512 minus RAP percentage multiplied by the combined average asphalt binder
content of the processed fractioned RAP stockpiles
...
Submit
test data and one tested sample set from AASHTO T 324 (Modified) test
...

For RHMA-G with WMA technology and upon request, the Engineer verifies RHMA-G quality
requirements within 5 business days of sampling
...

For the Method process, HMA produced using WMA technology must be produced at
temperatures in accordance with Section 39, "Hot Mix Asphalt," of the Standard Specifications
...
08A, "General," of the Standard Specifications except the HMA plant
asphalt binder set point for HMA production must be the OBC specified on your CEM-3511
...

HMA additives used for anti-strip treatment and warm mix technologies may be either in a liquid
or dry state
...
XX-XXXXXX
CCO No
...
The sampling equipment must comply with California Test 125
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Proportion all ingredients by weight
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The addition of the HMA additive must be controlled by the PPC
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If a loss-in-weight meter is used for dry HMA additive, the
meter must:
1
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Have an automatic and integral material delivery control system for the refill cycle
Calibrate the loss-in-weight meter by:
1
...
Operating the device in a normal run mode for 10 minutes immediately before starting
the calibration process
3
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Checking the scale system within the loss-in-weight feeder for accuracy before and after
the calibration process and daily during mix production
5
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Complying with the limits of Table B, "Conveyor Scale Testing Extremes," in the MPQP
Produce additive enhanced HMA by using either a continuous mixing or a batch type HMA
plant
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Use a mass flow meter or a
container scale to proportion liquid additives at batch mixing plants
...
Dry ingredient additives for continuous production must be proportioned with a conveyor
scale or a loss-in-weight meter
...
HMA PPC and ingredient measuring systems must be capable of varying all ingredient
feed rates proportionate with the dry aggregate delivery at all production rates and rate
changes
...
XX-XXXXXX
CCO No
...
Liquid HMA additive must enter the production stream with the binder
...

4
...

5
...
3 percent of the target additive rate
...
Metered HMA additive must be placed in an intermediate holding vessel before being
added to the stream of asphalt binder as it enters the pugmill
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When a container scale is used, weigh additive before combining with asphalt binder
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The container
scale capacity must be no more than twice the volume of the maximum additive batch
size
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001 times the container scale capacity
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Dry HMA additive proportioning devices must be separate from metering devices for the
aggregates and asphalt binder
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Dry ingredients for batch production must be proportioned with a
hopper scale
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Zero tolerance for the HMA additive batch scale is ±0
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The indicated HMA additive batch scale weight may vary from the preselected
weight setting by up to ±1
...

Production Data Collection
The HMA PPC must produce an electronic log of production data consisting of a series of
snapshots captured at a maximum of 1-minute intervals throughout the period of daily
production
...
The
amount of material represented by each snapshot is the amount produced during the 0
...
5 minute interval after the capture time
...

The snapshot of production data must include the following:
1
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3
...

5
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7
...
For a continuous mix plant operation, the rate of flow of the asphalt meter
9
...
XX-XXXXXX
CCO No
...
For a batch plant operation, actual batch weights of all ingredient
11
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The dry aggregate/HMA additive ratio calculated from metered output
Electronic media must be presented in a Comma-Separated Values (CSV) or Tab-Separated
Values (TSV) format
...

CONSTRUCTION
You must request adjustments to the plant asphalt binder set point based on new RAP stockpiles
average binder content
...

The specified temperatures for HMA in Section 39, "Hot Mix Asphalt," of the Standard
Specifications, for transporting, spreading and compacting of HMA apply to HMA produced
using WMA technology
...
XX-XXXXXX
CCO No
...
Delete the treatment methods specifications for projects
with QC/QA construction process because the following specifications are already in the project
special provisions
...
__ HOT MIX ASPHALT AGGREGATE LIME TREATMENT - SLURRY METHOD
GENERAL
Summary
This work includes treating hot mix asphalt (HMA) aggregate with lime using the slurry method
and placing it in stockpiles to marinate
...

Submit the averaged aggregate quality test results to the Engineer within 24 hours of sampling
...

2
...

4
...


Treatment date
Time of day the data is captured
Aggregate size being treated
Wet aggregate flow rate collected directly from the aggregate weigh belt
Moisture content of the aggregate just before treatment, expressed as a percent of the dry
aggregate weight
6
...
Lime slurry flow rate measured by the slurry meter
8
...
Approved lime ratio for each aggregate size being treated
10
...
Calculated difference between the approved lime ratio and the actual lime ratio
12
...
Each continuous treatment data set
must be a separate record using a line feed carriage return to present the specified data on one
line
...

Quality Control and Assurance
Your quality control plan (QCP) must include aggregate quality control sampling and testing
during aggregate lime treatment
...
XX-XXXXXX
CCO No
...
Combine aggregate in the JMF proportions
...


The Engineer orders proportioning operations stopped for any of the following if you:
1
...

3
...

5
...

7
...

Do not submit the aggregate quality control data
...

Do not take corrective actions
...

Do not stop treatment when proportioning tolerances are exceeded
...


If you stop treatment, notify the Engineer of any corrective actions taken and conduct a
successful 20-minute test run before resuming treatment
...
Calculate moisture content under California Test 226 or California Test 370 and
report it as a percent of dry aggregate weight
...

MATERIALS
High-calcium hydrated lime and water must comply with Section 24-1
...

Before virgin aggregate is treated, it must comply with the aggregate quality specifications
...
The Engineer does not test
treated aggregate for acceptance except for gradation
...
If reclaimed asphalt pavement (RAP) is used, the Engineer determines
combined aggregate gradations containing RAP under Laboratory Procedure LP-9
...
XX-XXXXXX
CCO No
...

CONSTRUCTION
General
Notify the Engineer at least 24 hours before the start of aggregate treatment
...

Do not treat RAP
...
The slurry must completely coat the
aggregate
...

Immediately before mixing lime slurry with aggregate, water must not visibly separate from
aggregate
...

The lime ratio is the pounds of dry hydrated lime per 100 pounds of dry virgin aggregate
expressed as a percent
...

Lime ratio ranges are:
Aggregate Gradation
Coarse
Fine
Combined virgin aggregate

Lime Ratio
0
...
0
1
...
0
0
...
5

The lime ratio for fine and coarse aggregate must be within ±0
...
The lime ratio must be within ±0
...
The lime ratio must be
determined before the addition of RAP
...
2 percent above or
below the lime ratio in the accepted JMF, stop treatment
...
4 percent above or below
the lime ratio in the accepted JMF, stop treatment and do not use the material represented by that
set of data in HMA
...
XX-XXXXXX
CCO No
...
2 percent
above or below the lime ratio in the accepted JMF, stop treatment and do not use the day's total
treatment in HMA
...
Notify the Engineer before beginning the 20-minute
treatment period
...

The device controlling slurry proportioning must produce a treatment data log
...
The data must
be a treatment activity register and not a summation
...
For the contract's
duration, collected data must be stored by the controller
...

Marinate treated aggregate in stockpiles from 24 hours to 60 days before using in HMA
...


10-1
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Marinate aggregate if the plasticity index determined under California Test 204 is from 4 to 10
...

If marination is required, submit in writing the averaged aggregate quality test results to the
Engineer within 24 hours of sampling
...
XX-XXXXXX
CCO No
...
Treatment date
2
...
Aggregate size being treated
4
...
Wet aggregate flow rate collected directly from the aggregate weigh belt
6
...
Flow rate of dry aggregate calculated from the flow rate of wet aggregate
8
...
Lime ratio from the accepted JMF for each aggregate size being treated
10
...
Actual lime ratio calculated from the aggregate weigh belt output, the aggregate moisture
input, and the dry lime meter output, expressed as a percent of the dry aggregate weight
12
...
Each continuous treatment data set
must be a separate record using a line feed carriage return to present the specified data on one
line
...

Quality Control and Assurance
If marination is required, the quality control plan (QCP) specified in Section 39-2, "Standard,"
must include aggregate quality control sampling and testing during lime treatment
...
Combine aggregate in the JMF proportions
...


The Engineer orders proportioning operations stopped for any of the following if you:
1
...
Do not submit the aggregate quality control data for marinated aggregate
3
...
XX-XXXXXX
CCO No
...

5
...

7
...

MATERIALS
Lime must be high-calcium hydrated lime
...
02,
"Materials," of the Standard Specifications
...
Do
not test treated aggregate for quality control except for gradation
...

The Engineer determines the combined aggregate gradation during HMA production after you
have treated aggregate
...

Treated aggregate must not have lime balls or clods
...

Do not treat RAP
...
Treat and marinate coarse and fine aggregates separately
...
Treat aggregate and stockpile for marination only once
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Treat aggregate separate from HMA production
...
Water content of untreated aggregate must not affect the lime ratio
...
4 to 1
...
5 to 2
...
8 to 1
...
XX-XXXXXX
CCO No
...
2 percent of the lime ratio in the
accepted JMF
...
2 percent of the approved lime ratio when you
combine the individual aggregate sizes in the JMF proportions
...

Proportion dry lime by weight with a continuous operation
...

The log consists of a series of data sets captured at 10-minute intervals throughout daily
treatment
...
The material
represented by a data set is the amount produced 5 minutes before and 5 minutes after the
capture time
...

If 3 consecutive sets of recorded treatment data indicate deviation more than 0
...

If a set of recorded treatment data indicates a deviation of more than 0
...

If 20 percent or more of the total daily treatment indicates deviation of more than 0
...

If you stop treatment for noncompliance, you must implement corrective action and successfully
treat aggregate for a 20-minute period
...

If you use a batch-type proportioning operation for HMA production, control proportioning in
compliance with the specifications for continuous mixing plants
...

2
...

4
...
The controller must determine the amount of lime added to the aggregate from the
aggregate weigh belt input in connection with the manually input total aggregate moisture, the
manually input target lime content, and the lime proportioning system output
...
XX-XXXXXX
CCO No
...
If you use a water meter
for moisture control for lime treatment, the meter must comply with MPQP
...
The aggregate moisture content must not cause aggregate to be lost
between the point of weighing the combined aggregate continuous stream and the dryer
...
Immediately
before mixing lime with aggregate, water must not visibly separate from aggregate
...
Material collected in the dust
system must be returned to the mix
...

Immediately before mixing lime with aggregate, water must not visibly separate from aggregate
...
Introduce dry lime to the pugmill in a
continuous operation
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Prevent loss of dry lime
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Do not use aggregate marinated more than 60 days
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The pugmill must produce a homogeneous mixture of uniformly coated
aggregates at mixer discharge
...

Aggregate must be completely treated before introduction into the mixing drum
...
__ LIQUID ANTISTRIP TREATMENT
GENERAL
Summary
This work includes treating asphalt binder with liquid antistrip (LAS) treatment to bond the
asphalt binder to aggregate in hot mix asphalt (HMA)
...
Materials Safety Data Sheet (MSDS)

Contract No
...
XX
Attachment
Page 19 of 21
2
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Infrared analysis including copy of absorption spectra
Submit a certified copy of test results and a MSDS for each LAS lot
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07, "Certificates of Compliance," of the
Standard Specifications for each LAS shipment
...
Your signature and printed name
2
...
Material type
4
...
Refinery
6
...
Destination
8
...
Contact or purchase order number
10
...
03, "Hot Mix
Asphalt Mix Design Requirements," of the Standard Specifications
...

For each job site delivery of LAS, submit one 1/2-pint sample to the Transportation Laboratory
...
Label each LAS sampling container with:
1
...

3
...


LAS type
Application rate
Sample date
Contract number

At the end of each day's production shift, submit production data in electronic and printed media
...
Use line feed carriage return with one
separate record per line for each production data set
...
Include data titles at least once per report
...
Batch Mixing:
1
...

1
...

1
...

1
...

1
...


Production date
Time of batch completion
Mix size and type
Each ingredient's weight
Asphalt binder content as percentage of dry aggregate weight

Contract No
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XX
Attachment
Page 20 of 21
1
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LAS content as percentage of asphalt binder weight
2
...
1
...
2
...
3
...
4
...
5
...
6
...
7
...
8
...
8
...
Aggregate weigh belt output
2
...
2
...
8
...
Asphalt binder meter output

2
...
LAS content as percentage of asphalt binder weight calculated from:
2
...
1
...
9
...
LAS meter output
Quality Control and Assurance
For continuous mixing and batch mixing operations, sample asphalt binder before adding LAS
...

The Engineer orders proportioning operations stopped for any of the following if you:
1
...

3
...

5
...


Do not submit data
Submit incomplete, untimely, or incorrectly formatted data
Do not take corrective actions
Take late or unsuccessful corrective actions
Do not stop production when proportioning tolerances are exceeded
Use malfunctioning or failed proportioning devices

If you stop production, notify the Engineer of any corrective actions taken before resuming
...
LAS does not substitute for asphalt binder
...


Contract No
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XX
Attachment
Page 21 of 21
Use only 1 LAS type or brand at a time
...

Store and mix LAS under the manufacturer's recommendations
...
5 and 1
...

If 3 consecutive sets of recorded production data show actual delivered LAS weight is more than
±1 percent of the approved mix design LAS weight, stop production and take corrective action
...
If the LAS weight exceeds 1
...

The continuous mixing plant controller proportioning the HMA must produce a production data
log
...
The data must be a production activity register and not a summation
...
For the duration of the contract, collected data must be stored by the plant controller or a
computer's memory at the plant

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