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EXHIBIT C SECTION 401

SECTION 40] -- PLANT MIX PAVEMENTS — GENERAL
SECTION 403 -- HOT BITUMINOUS PAVEMENT
SECTION 410 -- BITUMINOUS SURFACE TREATMENT
SECTION 421 -- PLANT MIX SURFACE TREATMENT
SECTION 413 -- HGT-POURED CRACK SEALANT
SECTION 417 -- COLD PLANING BITUMINOUS SURFACES

SECTION 401 -- PLANT MIX PAVEMENTS ~— GENERAL

Description 3.4 Batching Plants —- General.
15 Performance Requirements (QC/QA). 33 Drum Mix Plants ~ General.
. 3.6 Mixing Temperature.
Materials .
3.6.1 Method Requirements.
2.1 Aggregates — General. -
_ : 3.6.2 Performance Requirements {QC/QA).
2.2 Bituminous Materials — General.
. 3.7 Hot Storage System — General.
2.3 Approval of Materials - Method —— :
. 3.8 Weighing and Hauling — General.
Requirements. 3.9 Vehicl G \
wes , ; ehicles — General,
2.4 Composition of Mixtures - General. — oo =
3.10 Placing—General.

2.5 Job Mix — General.
2.6 Method Requirements.
. Pavers.
2.7 Performance Requirements (QC/QA). ra 11 Pe hall be:
2.10 Allowed Recycled Materials — General. 457 Methad Reaun :
. il. q
2.10.2 Reclaimed Asphalt Pavement (RAP}. — ethed neauirements

2.11 = Asphalt Modifiers. abe —
2.12 Pavement Joint Adhesive. SA6 Sompaction.

3.12.2 Method Requirements.

. |

10.7 Weather Limitations.

Ww
w yw i

Construction Requin ements 3.12.3 Performance Requirements (QC/QA).
3.1 Mixing Plants. 3.13 Joints - General.

3.1.1 General. 14 ~~ Variations in Profile and Cross Slope —
3.1.2 Method Requirements. Method (See 3.17.3.4.1).

3.1.3 Performance Requirements (QC/QA). 17 Additional Performance Requirements
3.1.4 Safety Requirements for Inspection — {QC/OA}.

General. 3.17.1 Quality Control,

3.1.5 Scheduling Inspection Personnel - 3.17.2 Quality Assurance.

General. 3.17.3 Acceptance Testing

3.1.6 Access ta Production Facilities - General.
3.1.7 Field Laboratories — General. Method of Wieosurement
3.2 Storage of Asphalt Binder — General. Basis of Payment
3,3 Control of Asphalt Binder — General.
Description
1.1 These specifications include general requirements that are applicable to all types of plant mix asphalt pavements
irrespective of the gradation of aggregate, kind and amount of asphalt binder, or pavement use. Deviations from these general
requirements will be indicated in the specific requirements for each type.

1.2 These specifications provide for the use of reclaimed asphalt pavement material in certain specified mixtures,

1.3. This work shall consist of the construction of one or more courses of asphalt pavement constructed on a prepared foundation
in accordance with these specifications and the specific requirements of the type under Contract. The work shall be in reasonably

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SECTION 401

close conformance with the lines, grades, thickness, and typical cross-sections shown on the plans, within the tolerances specified
or established by the Engineer.

1.4 These specifications provide for both method and quality control/quality assurance (QC/QA) specification work. Sections
under the heading Performance Requirements (QC/QA) are applicable on QC/QA items only. Sections marked Quality Control
(QC/QA) Method are applicable for non-QC/QA items and those portions of QC/QA items that are not measured for pay
adjustment. All sections under the heading General are for use with all items.

1.5 Performance Requirements (QC/QA).

1.5.1 The work will be accepted under Performance Requirements (QC/QA) provisions in accordance with these Specifications
and the applicable requirements of Section 106.

(a) The QC/QA Tier 1 item is to be used on specified projects that are on new locations, interstate projects, full depth
reconstruction projects in rural areas or on reclamation projects in rural areas.

(b) The QC/QA Tier 2 item is to be used on specified projects that are inlay type projects, full depth reconstruction projects
with maintenance of traffic phasing, projects with intersecting streets, projects with pavement tapers, bridge projects
with short approach paving, projects where there are many manhole/drainage structures or driveways (generally in urban
and suburban areas).

QUALITY/PAY FACTORS TO BE ASSESSED

Tier 1 Tier 2
Asphalt Content and Gradation ee
Ride Quality
/ Thickness x

Materials
2.1 Aggregates ~ General.

2.1.1 Aggregates shail be uniform quality durable pebbles or fragments of rock, with or without sand or other inert finely
divided mineral aggregate. All material shall be free from clay balls, organic matter, deleterious substances, and an excess of
flat or elongated pieces as specified in ASTM D 4791. Washing will not be required, except when aggregate plants do not
produce clean material by the dry process method. In order to obtain uniformity of color and appearance of the pavement
throughout the project, the aggregate for all the wearing courses shall be obtained from the same material source. Sufficient
material shall be on hand prior to starting daily operations to ensure uninterrupted processing for the working day.

2.1.2 Fine aggregate shall consist of sound durable particles of sand, crushed stone, or a combination thereof. Fine
aggregate shall be free from clay balls and injurious amounts of organic matter. Stone screening shall be produced from stone
at least equal in quality to that specified for coarse aggregate.

2.1.2.1 Fine aggregate may be 100 percent manufactured aggregate.

2.1.3 Mineral filler shall conform to AASHTO M 17 except that 100 percent shall pass the No 16 sieve, waiving the
requirement for the No. 30 sieve.

2.1.4 Coarse aggregate shall be crushed stone or crushed gravel and shall have a percentage of wear as determined by
AASHTO T 96 of not more than 45 percent unless otherwise specitied by Contract item. In each stockpile, not less than 50
percent by weight of the particles retained on the No. 4 sieve shall have at least one fractured face. Stockpiles consisting of a
blend of crushed stone and crushed gravel will be permitted so long as the overall consistency of the stockpile is reasonably
maintained and the lesser portion of coarse aggregate material does not exceed 10 percent of the total. This percentage shall be
determined on the portion of the total sample by weight that is retained on the No. 4 laboratory sieve.

2.1.4.1 Coarse aggregate for High Strength HBP shall be crushed stone and shal] have a percentage of wear as determined
by AASHTO 96 of not more than 45 percent wear.

2.2 Bituminous Materials — General.

2.2.1 Bituminous materials used for asphalt cement binder shall meet the properties specified in AASHTO M 320. The
grade of asphalt cement binder to be used will be specified in a Special Provision contained in the Proposal. Asphalt cement
shall not be air blown or contain any form of used, recycled or re-refined oil.

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SECTION 401

2.2.1.1 The unit bid price for hot bituminous pavement containing failing asphalt binder shall be assessed a 10% reduction
for one temperature grade below the specified high temperature grade or one temperature grade above the specified low
temperature grade. The penalty will be applied to all tonnage produced with the non-compliant binder. When the binder failure
is non-compliant by two grades or more, as described above, the Contractor shall be required to remove and replace all non-
compliant materia! at the Contractor’s expense, or at the Engineer’s discretion, may be allowed to leave the tonnage in place at
a unit price reduction of 50%.

2.2.2 Liquid binder samples shall be obtained by plant personnel in the presence of the Inspector/Technician. Samples
shall be obtained during each day’s production.

2.2.3. Producers and suppliers of asphalt binders shall comply with the requirement of AASHTO R 26. Asphalt binder
suppliers shall have a quality control plan approved by the Bureau of Materials and Research that complies with AASHTO R 26.

2.2.3.1 All suppliers of PG binder shall certify that the PG binder supplied for use on Department projects does not contain
used, recycled or re-refined oil.

2.3 Approval of Materials - Method Requirements.

2.3.1 At least five working days in advance of the date of starting operations, the Bureau of Materials & Research may
request that representative samples of all materials proposed for use be submitted for testing,

2.4 Composition of Mixtures - General.

2.4.1 Hot mix asphalt shall be composed of a mixture of aggregate, filler if required, and asphalt binder. The several
aggregate fractions shall be sized, uniformly graded, and combined in such proportions that the resulting mixture meets the
grading requirements of the job mix formula. The Contractor shall use the Volumetric Mix Desi gn Method in AASHTO Standard
Practice R 35 as moditied herein.

2.4.2 The Contractor shall have the option of utilizing asphalt pavement removed under the Contract, if any, or old asphait
pavement from an existing stockpile or supplying all new materials for the production of asphalt pavement or any combination
of the foregoing. If the job mix formula uses recycled materials, the mix shall meet the requirements of Reclaimed Asphalt
Pavement as specified in 2.9.

2.4.3 The Department allows the use of recycled binder in mix designs, up to 1.0% Total Reused Binder (TRB) without
any change in asphalt binder requirements as long as the mix design meets all volumetric mix design criteria. When a design
has been completed using the maximum allowable percentage of TRB, one point verifications may be performed using decreasing
percentages of TRB. Ifthe design is not validated using a decreased amount of TRB, a new design will be required.

2.5 Job Mix— General.

2.5.1 When a new volumetric mix design is required, the Contractor shall use the Volumetric Mix Design Method in
AASHTO Standard Practice R 35 to develop a mix that meets the associated design criteria. The Mix design shall follow the
procedure detailed in AASHTO with the following exceptions: Amend Table 1 Superpave Gyratory Compaction Effort to read
as follows:

Design ESALs
(Million) N initial N design N max
OSS BO
>5 7 75 115
Add the following:
Minimum Binder Content
20 Gyration 7S Gyration
5.8% 1/2” 5.5%
AM AP 4% _—
4.6% 1” 43%

This required minimum asphalt content is based on the use of aggregate with a specific gravity of 2.65 to 2.70. The minimum
asphalt content requirement may be adjusted when aggregate with a higher specific gravity is used, or the minimum may be
adjusted at the Engineer’s discretion if it is believed to be in the best interest of the Department.

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SECTION 401

Amend Table 3 in AASHTO M 323, referenced in AASHTO R 335, to read as follows:
Table 401-1 —Design Control Points*

Standard Nominal Maximum Aggregate Size
—— a= — — ae | ern ae a ~ 3/4" See enn mepen ay /0 — "3/99 “oe 1 No. 4
Sieves i
cee ge pene enn Max | Min | Max. | Min. | Max | Min, 7 Max. | Min. | Min.
Inch Percentage by Weight Passing Criteria (Control Points)
Ja 90.0 100.07 90.0 FF 100.0)
en ns co 90.0 97.0 90.0
O | 42.0 | 32, 2.0 1 96.0 165.0
Sd, | oe
Le 26.0 |
IE a 20.0
; 80 | 20 | 100 | 20 | 100 | 20 1 80. 40

All mix designs shall be submitted to the Department for verification and approval.

* Superpave designs will be accepted through the restricted zone, pending verification and approval by the Bureau of
Materials & Research. The Contractor shall submit compaction data from trial blends at the optimum asphalt content and at
0.5% below and above the optimum asphalt content. The data shall include the temperature at which the HMA was aged.

2.5.1.1 All 25 mm base course mixes shall be designed using the 50 gyration Neesign-
2.5.2 The Design Information shall include:

(a) Asphalt Binder

(b) PG Test Data

{c) Specitic Gravity

{d) Laboratory Mix/Compaction Temperature

(e) Aggregate

(f) Dry and Washed Gradation

(g) Bulk and Apparent Specific Gravity

(h) All appropriate consensus properties

i) Blends

(j) Baghouse material from the plant shall be incorporated into the mix design. The amount of baghouse material
should be based on estimated usage or experience.

{k) Moisture susceptibility according to AASHTO T 283.

Along with the design information, Materials & Research (M&R) requires 2 quarts of the designated asphalt binder, 4
preblended aggregate specimens for gyratory and 2 preblended aggregaie specimens, suitable for AASHTO T-209 when mixed
with the appropriate asphalt, in order to verify the design. M&R will accept the mix design based on the submitted information
meeting the mix requirements and on verification of the mix volumetrics of the submitted specimen. If the verification samples
indicate voids between 3.0 and 5.5 percent, and the Voids in Mineral Aggregate (VMA) and Voids Filled with Asphalt (VFA)
fall within the specified limits, then the design will be accepted. Once accepted, the approved mix design is the job mix formula
(JMF). If the voids are outside the aforementioned range or the VMA or VFA are outside the specified limits, the design will be
rejected. M&R may elect to verify the design again.

2.5.3. The proposed mix designs and materials shall be submitted to the Engineer a minimum of 20 working days before
placement for approval. It shall be the responsibility of the Contractor to ensure all approved mix designs have been entered into
the plant automation system before production begins. The Contractor will also be required to post a copy of the JMF in the DOT
testing laboratory.

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SECTION 401
2.5.4 Whenever the aggregate properties change enough to negate the project’s existing design, a new design shall be
submitted.

2.5.5 Hf it becomes necessary to change the asphalt binder grade or the source of aggregate, a new mix design shall be
developed. Up to 14 calendar days will be required to evaluate a change. Approved changes in target values will not be applied
retroactively for acceptance or payment. If it becomes necessary to change the source of asphalt binder, the Contractor must
submit recent quality test results from the manufacturer for the asphalt binder including a temperature viscosity curve.

2.5.6 The Contractor shall perform a single point verification of an existing project mix design at the beginning of a new
construction season to determine if the design remains valid. If the design is validated, the data from the single point verification
shall be submitted to the Department. If the design cannot be validated, a new design shall be developed.

2.5.7. The Bureau of Materials and Research may require the use of certain chemical additives.

2.5.8 The laboratory performing the design shall be approved by the Department. To obtain the Department’s approval, a
laboratory must demonstrate that it is equipped, staffed, and managed so as to be able to produce job mix formulas and test hot
asphalt mix in accordance with these Specifications. Approval for each laboratory shall remain in effect for a period of one year.

2.6 Method Requirements.
2.6.1 Stockpiled coarse aggregate shall meet the requirements of Table 401-2.
Table 401-2 -- Percent Passing

: BaseMix ; Binder Mix | Wearing Mix Wearing Mix
Sieve Size LO" a Wr 3/8”
as ap pep
LL 1/4" i 90. 0 - 100 '
oP 50.0 88.0100 .
3/4 1 - 10.0 - 50.0 + 90.0-100° | :
pe oa en i007 cece
ee ee 950-100
Fe ee wt. 22.0-53.0
No. 8 © 0-50 0-50 ; 0 - 10.0

2.6.2 After the job mix formula (JMF) is established, all mixtures furnished for the project shall conform within the following
ranges of tolerances:

Passing No. 4 and larger sieves £7,0 percent
“Passing? No. 8 No. 100 sieves (inclusive) _ _£4.0 percent _ a
Passing No.” 200, sieve - tL,

“Asphalt binder i (sti‘C;;!!!!;C OA percent — —

Temperature of mixture E90 OF (ii °C)

2.6.3 When Non-compliant test results, or other conditions make it necessary, it shall be the responsibility of the Contractor to
make all adjustments required to ensure the mix conforms to the JMF.

If two consecutive non-compliant results occur, the Engineer may stop production until satisfactory corrective action has
been taken. A 5% reduction in unit price will be assessed to all tonnage represented by consecutive gradation failures and a 10%
reduction will be assessed to all tonnage represented by consecutive asphalt binder content failures. At the Engineer's discretion,
the Contractor may be required to remove non-compliant material (no payment will be made for this material or its removal).

Contractor quality control personnel will not be required to be on site during production of non-quality control projects, but
contract information shall be posted in the testing lab.

2.7 Performance Requirements (QC/QA).

2.7.1 After any new changed job mix formula is established, all mixtures furnished for the project shall conform thereto,
within the gradation and asphalt binder content reject limits in Table 401-6 in 3.17.3.1.1. Specification limits for pay adjustments
under Performance Requirements (QC/QA) provisions shall be as set forth in Table 401-5 in 3.17.3.1.1.

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Go To= TOC Division 100 Division 200 Division 300 Division 400 Standard
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SECTION 401

2.7.2. The general composition limits given in Table 411-1 indicate target value ranges of mixtures permissible under
Section 411. The job mix formula shall lie within the target value ranges indicated for the particular type of hot asphalt mix.

2.8 General - Bridge pavement base course shail be 3/8” wearing course.

2.9 General - Non-modified asphalt binder shall contain silicone additive with the concentration being 3 parts per million plus
or minus 1 part per million of silicone to asphalt binder, unless otherwise directed. Silicone additive shall be in liquid form and
have a viscosity of 1,000 centipoises (1 Pas) at 77 °F. Asphalt binder containing silicone shall meet the requirements of 401.2.2

2.10 Allowed Recycled Materials — General.

2.10.1 Reclaimed asphalt pavement (RAP) may be used in the production of hot mix asphalt. The allowed dust to asphalt
ratio shall be as identified in AASHTO M 323. The maximum allowable total reused “ asphalt” binder (TRB) in HMA mixes
shall be 1.5%. Any changes in the combination of recycled materials shall require a new mix design unless otherwise approved
by the Bureau of Materials & Research.

2.10.2 Reclaimed Asphalt Pavement (RAP).

RAP shall consist of recycled asphalt pavement and shall be processed by crushing, cold milling, or other approved sizing
techniques approved by the Bureau of Materials and Research to meet the required gradation specifications. The mixture of RAP
and new aggregate shall meet the requirements specified in Table 401-1 for aggregate gradation. The RAP shall be tested every
1,000 tons for gradation and asphalt binder content as a stockpile is being built. These test results shall remain on file by the
Contactor until such time as the entire RAP stockpile has been utilized.

2.10.2.1 The PG grade of added asphalt shall be as specified by the Bureau of Materials and Research. The aggregate
component of the RAP shall meet the requirements of 401.2.1. The bitumen component of the RAP shall be asphalt cement and
shall be free of significant contents of solvents, tars, and other volatile organic compounds or foreign substances that will make
the RAP unacceptable for recycling as determined by the Bureau of Materials and Research.

2,10.2.2 RAP materials may be rejected if deemed unsuitable for any reason or require an increase or decrease in the mix
asphait content. The Contractor shall submit representative samples, and gradation and asphalt cement content test results of the
RAP to be incorporated into the Recycled Mixture for approval by the Bureau of Materials and Research at least 30 calendar
days prior to the start of paving.

2.10.3 For afl designs containing TRB in an amount greater than 1% of the total mix:

(a) RAP stockpiles shall be covered by a roof.

(b) Prior to the start of production, the composite RAP and virgin binder shall be tested by the Contractor to
determine the appropriate grade of virgin binder to be added.

(c) Only allowed in a drum mixer.

(d) Only allowed for binder & base courses.

(ec) Test RAP for gradation & AC% every 1000 tons.

(f) Run split samples at start of production and every 10k tons thereafter for composite binder testing.

2,11 Asphalt Modifiers.

General. The generic type of each asphalt binder admixture, modifier and/or additive shall be identified on the certificate
of analysis, which shall be furnished by the manufacturer for each load of asphalt delivered. Modifiers shall be pre-blended with
the asphalt binder.

2.41.1 Asphalt binder modification to produce high-strength mix shall utilize either a styrene-butadiene or styrene-butadiene-
styrene polymer to achieve the specified performance grade of asphalt. The Section 401 contract Special Provision specifying
the asphalt binder grade shall also identify the AASHTO test method by which the binder grade shall be determined. The
modified binder shall be pre-blended, storage-stable and homogencous.

2.11.2 The use of Warm Mix Technologies is permitted in mix production. Qualified technologies are listed on the Qualified
Warm Mix Asphalt (WMA) Technologies List.

2.12 Pavement Joint Adhesive.
Pavement Joint Adhesive shall be a product that is listed on the Qualified Products List.

2.12.1 Joint adhesive shall meet the following requirements:

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SECTION 404

Requirements for Pavement Joint Adhesive

Property Test Method Requirement
Cone Penetration, 25°C ASTM D 5329 60 -100
“Flow,60°C ASTM D 532900 Ss mm maximum
“Resilience, 25°C = ASTM 532900 30% minimum
‘Ductility,4¢C ASTM D113 30 cm minimum ~
“Tensile Adhesion, 25°C ASTM D5329) 500% minimum
SofteningPoint = = = ASIMD36 9 77?Cminimum —
Asphalt Compatibility = ==ASTMD5329 ——séPass—

Construction Requirements
3.1 Mixing Plants.

3.1.1 General.

e Coarse aggregates shall be furnished in at least two nominal sizes for mix types containing top size
aggregates of 1/2” and larger.

@ RAP shall be fed into the plant by equipment specifically designed for recycling and approved by the
Bureau of Materials and Research. In addition, all requirements pertaining to aggregates shall apply to
RAP. Scalping screens, grizzlies, or similar devices shall be installed on the RAP feed bin(s) to remove
any debris or other foreign materials in excess of 2”. If a drum mix plant is used, the RAP shall be fed
into the drum so that it will not come in direct contact with the burner flame. Mixing of RAP with the
new aggregate shall occur before the bituminous material introduction point. The final mix produced
shall be visually free from any chunks of RAP.

e Plants shall be approved at least five days prior to operations and will be capable of maintaining an
adequate supply of mixture to the project.

3.1.2 Method Requirements.

e The site shall have ample storage space for the required separate bins, stalls, or stockpiles to allow
delivery of uncontaminated sized aggregates to the feeder. To prevent spillage from one pile or bin to
the next, aggregate assigned to different stockpiles shall be separated by bulkheads or other satisfactory
means.

e Stockpiles of coarse aggregate produced for use in drum mix plants having top size aggregates greater
than 3/4” shall be constructed in layers not to exceed 4 ft.

e All blending of aggregates shail be accomplished through separate bins at the cold elevator feeders and
not in stockpiles.

e The plant shall be provided with a dust collector or collectors, designed to waste or return uniformly to
the hat elevator all or part of the material collected, as directed. All plants shall have adequate covers
and housing as may be necessary to ensure the proper collection of dust and the general cleanliness of
the plant operation. The Contractor shall comply with all State and Federal environmental regulations.

3.1.3 Performance Requirements (QC/QA).

Mixing plants shall conform to AASHTO M 156. An efficient dust collecting system shall be provided to prevent the loss
of fine material. The material collected may be returned to the mixture at a uniform rate or discarded.

3.1.4 Safety Requirements for Inspection — General.
3.1.4.1 Adequate and safe stairways to the mixer platform shall be provided, and guarded ladders to other plant units shall
be located where required for accessibility to plant operations.
3.1.4.2 All gears, pulleys, chains, sprockets, and other dangerous moving parts shall be thoroughly guarded and protected.

3.1.4.3 Ample and unobstructed space shall be provided on the mixing platform. The plant operator shall have a clear and
unobstructed view of the plant operations.

3.1.44 A platform shall be located in close proximity to the inspector’s laboratory for the purpose of easily obtaining
samples of the mixture from the trucks.

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SECTION 401

3.1.4.5 When the plant is to be operated in other than daylight hours, adequate lighting shall be provided in all areas
frequented by the inspector during his normal routine. Specific areas to be illuminated include the truck loading zone and
sampling location. A light or lights shall also be located so as to allow the clear observance of the truck bady lubrication
operation.

3.1.5 Scheduling Inspection Personnel - General.
3.1.5.1 The Contractor shall notify the Bureau of Materials and Research at least three working days in advance of starting

paving operations to allow sufficient time to schedule required plant inspection personnel. When paving bridge decks that have
barrier membranes, this notice shall include the name of the membrane product so that the mix temperature may be established.

3.1.6 Access to Production Facilities — General.
3.1.6.1 The Engineer shall have access at any time to all parts of the plant for inspection of the conditions and operations
of the plant, for confirmation of the adequacy of the equipment in use, for verification of proportions and character of materials,
and for determination of temperatures being maintained in the preparation of the mixtures. The Contractors shall provide a
suitable building, room, or trailer for exclusive use by the DOT Technician as a testing laboratory in which to house and use the
testing equipment. Laboratories shall be in an approved location, with one laboratory provided for each plant.

3.1.7 Field Laboratories — General.
3.1.7.1 Field laboratories shall meet the following minimum requirements:

Outside Method Requirements: 16 fi long by 8 ft wide [or equal] by 7 ft high (4.8 m long by 2.4 m wide by
Dimensions: 2.1 m high).

Performance Requirements (QC/QA): Laboratory shall consist of a minimum of 200 fi? of floor
-....Sbace, laid out to accommodate shelves, benches, desk, equipment and personnel movement,
Iwo, with locks and screens, providing cross ventilation. co
One, with lock and screen.
_ Adequate lighting and,
n _._Unit size shall be as reco
Heat: ___________ Thermostatically controlled to maintain a minimum ten
Weatherproofing: Roof, sides, and floor shall be maintained weatherproof at all times.
Appurtenances: a) An exhaust fan and hood over the extractor. The hood shail be large enough to cover the extractor.
The fan shail be a high-volume axial-flow fan, at least 10” in diameter, and of sufficient capacity to
vent the fumes adequately.
b) Free wall space of at least 12 ft*; or a bulletin board of equal area for posting notices and job mix
formulas.

Method Requirements: Suitable shelves and benches. One bench shall be approximately 24” wide X
36” high and at least 10 ft long. The bench may extend the length of the building.)
Performance Requirements (QC/QA):Suitable shelves and benches. Bench space shall be
approximately 24” wide by 36” high. There shall be a minimum total length of 19 ft of bench space.

ended for size of the facility. So

_Air Conditioner: _ ee
minimum temperature of 68°F (20°C),

3.1.7.2. The following office furnishings and testing equipment shall be provided:

(a) Electronic balance with tray, at least 300 oz net capacity, sensitive to 0.003 oz.

(b) Desk and chair in good working condition.

(c) Set of U.S. Standard brass sieves, each sieve being 12” in diameter and 1- 1/2” high. The set shall consist of
one each of the following sizes: 1- 1/2”, 1-1/4", 1”, 3/4”, 1/2", 3/8”, No. 4, No. 8, No. 16, No. 30, No. 50,
No. 100, No. 200, with pan and cover.

(d) Motor driven shaker for 12” diameter sieves. Shaker shall meet the following requirements: Rotating
turntable, tilt to 45 degree angle and have hammers to tap each sieve during operation.

(ce) Motor driven centrifuge extractor, 100 oz capacity with variable speed up to 3600 rpm, with filter rings and
non-toxic solvent approved by the Bureau of Materials and Research,

(f) Tachometer readily available to check the speed of the extractor.

(g) Automatic timer with interval of 0 to 30 minutes.

(h) Bristle brush for cleaning No. 200 sieve.

(i) Brass brush for cleaning 8” diameter sieves.

Qj) Five pans or bowls, approximately 4” high, 15” round or square.

(k) Spatula, large spoon, garden trowel, measuring scoop, and 1 quart pitcher.

(1) Fire extinguisher, minimum five pound dry chemical.

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SECTION 401

(m) Desk brush and floor broom.

(n) Sample splitter (riffle type), chute width 1- 1/2 to 2”

(0) Microwave oven when drum mix plant is used.

(p} Minimum of one metal sample pail for each hot bin.

(q) Lavatory with toilet (See 698.2.2.4) and wash basin, unless approved otherwise.

(r) Water, hot and cold, and water suitable for drinking. (Fountain style will be acceptable),

(s) Telephone with private line.

(t) Drying oven, minimum of 3.5 fe.*

(u) Equipment sufficient to perform AASHTO T 209.*

(v) Water cooled diamond saw capable of cutting 6” road cores.

(w) High Speed Internet Connection - Each laboratory (on State-bid projects) will be provided with bi-directional
Internet access having a minimum data rate of 256K bps.

(x) Wheelbarrow when a drum mix plant is used.

*All ovens other than microwaves shall be vented to the outside.

3.1.7.3. All of the foregoing testing equipment shall be in good condition and shall be replaced or repaired by the Contractor
if, during the duration of the project, it becomes unsuitable for testing purposes. Testing equipment shall be calibrated by the
Contractor in accordance with 106.03. The above mentioned equipment is for operation of a single plant.

3.2. Storage of Asphalt Binder — General.

3.2.1 Tanks for storage of asphalt binder shall be of minimum 10,000 gal capacity and equipped for heating the material
under effective and positive control at all times, to the temperature requirements set forth in the specifications for the paving
mixture. Heating shall be accomplished by steam or oil coils, electricity, or other means such that no flame shall come in contact
with the heating tank.

3.2.2 A complete system providing for continuous circulation of the asphalt binder between the storage tank and the
proportioning units shall be employed. The discharge end of the circulating pipe shall be maintained below the surface of the
asphalt binder in the storage tank to prevent discharging the hot asphalt binder into the open air.

3.2.3 The Contractor shall provide in the asphalt binder feed lines connecting the plant storage tanks to the asphalt binder
weighting system or spray bar a sampling outlet consisting of a valve installed in such a manner that samples may be withdrawn
from the line slowly at any time during plant operation. The sampling outlet shall be installed between the pump and the return
discharge line in such a location that it is readily accessible and free from obstruction. A drainage receptacle shall be provided
for flushing the outlet prior to sampling.

3.3. Control of Asphalt Binder — General.

3.3.1 Satisfactory means either by weighing or metering shall be provided to obtain the proper amount of bituminous
material in the mix within the tolerance specified. Means shall be provided for checking the quantity or rate of flow of bituminous
material into the mixer as follows:

(a) Metering devices for asphalt binder shall indicate accurately to within 1.0 percent the amount of asphalt binder
delivered. The section of the asphalt binder flow line between the charging valve and the spray bar shall be provided
with a three-way valve and outlet whereby the quantity delivered by the meter may be checked by actual weight.
The valve controlling the flow of asphalt binder to the mixer shall close tightly to prevent asphalt binder from
leaking into the pug mill during the mixing cycle. The meter shall be constructed so that it may be locked at any
dial setting to 0.1 gal and will automatically reset to this reading after the addition of asphalt binder to each batch.
The dial shall be in full view of the mixer operator. The size and spacing of the spray bar openings shall provide a
uniform application of asphait binder the full length of the mixer in a thin uniform sheet or in multiple sprays.

(b) Ifa bucket is used for weighing the asphalt binder, the bucket shall be of sufficient capacity to hold and weigh the
amount required for a batch in a single weighing. The filling system and bucket shall be of such design, size, and
shape that asphalt binder will not overflow, splash, or spill outside the confines of the bucket during filling and
weighing. The filling system and bucket shall be so arranged as to deliver the asphalt binder in a thin uniform sheet
or in multiple sprays over the full length of the mixer, The time required to add the asphalt binder shall be not more
than 15 seconds.

(c) Asphalt binder scales shall conform to the requirements for aggregate scales as specified in 3.1.6.7. Beam type
scales shall be equipped with a tare beam or adequate counter-balance for balancing the bucket and compensating
periodically for the accumulation of asphalt binder on the bucket.

2016 NHDOT
Go To=> TOC Division 106 Division 200 Division 300 Division 400 Standard
Division 500 = Division 600 Division 700 Specifications

SECTION 401

3.3.2 Suitable means shall be provided, either by steam or oll jacketing or insulation, for maintaining the specified
temperatures of the asphalt binder in the pipelines, meters, weigh buckets, spray bars, and other containers or flow line.

3.4 Baiching Pianis — General.

3.4.1 All aggregate shall be delivered by belt driven feeders. All feeders shall provide for adjustment of the cold feed and
shall be capable of being secured in any position.

3.4.2. Dryers shall continuously agitate the aggregate during the heating and drying process without leaving any visible
unburned oily residue on the aggregate when it is discharged from the dryer. If unusually wet aggregate is being used, the input
to the dryer shal! be reduced to that amount which the dryer is capable of drying. Aggregates shall be free from coatings of dust
after drying.

3.4.3 Plant screens shall be constructed and operated in such manner that all aggregates will be uniformly separated into
the sizes required for proportioning. They shall have sufficient capacity to furnish the necessary quantity of each aggregate size
required for continuous operation. Screen cloth that has become broken or has worn sufficiently to affect the gradation shall be
replaced.

3.4.4 Thermometric equipment shall be provided as follows:

(a) An armored thermometer of suitable range shall be fixed in the asphalt binder feed line at a suitable location near
the discharge at the mixer unit.

(b) The plant shall be further equipped with an approved thermometer, pyrometer, or other approved thermometric
instrument that continuously indicates the temperature of the heated aggregate at the discharge chute of the dryer.

3.4.5 Hot bins shall consist of at least four separate aggregate compartments. One compartment shall be reserved for fine
aggregate, and when required, one additional compartment shall be added for dry storage of mineral filler. Alternate bin systems
may be utilized with prior approval from the Department. Provision shall be made for accurate proportioning. Each compartment
shall contain the following features:

(a) Sufficient volume to supply the mixer at full rated capacity.

(b) An overflow pipe that shall be of such size and at such a location as to prevent any backing up of material into
other bins or into contact with the screen. Overflow apparatus shall be equipped with a telltale device that alerts
the operator and the inspector when the overflow equipment is full.

(c) Adequate telltale devices to indicate the position of the aggregate in the bins at the lower quarter points.

(d) Gates that cut off quickly and completely with no leakage.

(e) Adequate and convenient facilities including safe platforms for obtaining representative samples from each bin,

3.4.6 | Weigh boxes shail be of sufficient size to hold the maximum required weight of aggregate for one batch without hand
raking or running over, The weigh box shall be supported on fulerums and knife edges so constructed that they remain in
alignment or adjustment. All parts of the weigh box shall be free from contact with any supporting rods, columns, or other
equipment that affects the proper functioning of the hopper or scale. Gates on both bins and weigh hopper shall be constructed
to prevent leakage when closed.

3.4.7. Aggregate scales for any weigh box or hopper shall be of standard make and design and shall be accurate to 0.5
percent of the indicated load. The weight shail be indicated on a digital display. Scales shall be substantially constructed and
shall be installed in such a manner as to be free from vibration. The display shall be in full view of the operator, and the numerals
shall be of such a size that they can be easily read by the inspector. If the digital display is so located that it is not easily accessible
to the inspector, a duplicate display will be required for exclusive viewing by the inspector. The job mix formula target weights
shall continuously be part of the digital display during plant operations. The digital scale weight indications shall be displayed
adjacent (in juxtaposition) to each target weight for easy comparison to the job mix formula. It shall be the responsibility of the
Contractor to ensure that all scales are tested and sealed according to provisions as shown in the National Institute of Standards
and Technology Handbook 44, at least on an annual basis. The work shall be accomplished by a competent commercial scale
company prior to the start of the construction season, Scales shall be re-tested prior to use, after they have been moved. The
Contractor shall have readily available at least ten standard 50 Ib weights, for checking the scales during operations.

3.4.8 The batch mixer shall be of an approved pug mill type, hot oil or steam jacketed, or heated by other approved means
and capable of producing uniform mixtures within the specified tolerances. The mixer shal! have a batch capacity of not less
than 4,000 lb and be constructed so as to prevent leakage during the mixing cycle. The amount of material that may be mixed
per batch shall not exceed the manufacturer's rated capacity. If the mixer does not mix properly at the rated capacity, or if its
production does not coordinate with the other plant units, the Department reserves the right to reduce the size of the batch until
the desired efficiency is obtained. The pug mill shall be equipped with a sufficient number of paddles operated at such speed as

2016 NHDOT

Go To= TOC Division 100 Division 200 Division 300 Division 400 Standard
Division 500 Division 600 Division 700 Specifications