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SPECIFICATIONS COIINUED:
<br />SECTION 39 ALTERNATE A ASPHALT T ONCRET --ASPHALT CONCRETE SHALL CONFORM TO
<br />THE REQUIREMENTS IN SECTION 39, "ASPHALT CONCRETE," OF THE STANDARD SPECIFICATIONS
<br />AND THESE SPECIAL PROVISIONS.
<br />ASPHALT CONCRETE SHALL BE TYPE "B". AGGREGATE SHALL CONFORM TO THE 1/2 -INCH
<br />MAXIMUM, COARSE OR MEDIUM GRADING AS DETERMINED BY THE ENGINEER AND DIRECTOR.
<br />AT THE CONTRACTOR'S OPTION, AND WITH APPROVAL OF THE ENGINEER AND DIRECTOR,
<br />AGGREGATE MAY BE 3/4 -INCH MAXIMUM, MEDIUM GRADING WITH THE EXCEPTION OF THE
<br />FINAL FINISH COURSE.
<br />AGGREGATE CONFORMING TO THE 3/8 -INCH MAXIMUM GRADING WILL BE PERMITTED FOR USE
<br />IN DRIVEWAYS, DIKES AND OTHER AREAS WITH APPROVAL OF THE ENGINEER AND DIRECTOR.
<br />A MINIMUM OF 2 WEEKS PRIOR TO INTENDED USE, THE CONTRACTOR SHALL PROVED TO THE
<br />RESIDENT ENGINEER PROPOSED AGGREGATE SOURCES, GRADATIONS, AND AGGREGATE
<br />CHARACTERISTICS DEMONSTRATING COMPLIANCE WITH SECTION 39 OF THE STANDARD
<br />SPECIFICATIONS. A MIX DESIGN PERFORMED IN ACCORDANCE WITH CALIFORNIA TEST 367
<br />SHALL BE PROVIDED FOR EACH TYPE AND SOURCE OF THE MATERIAL TO BE USED ON THE
<br />PROJECT. THE PROPOSED GRADATION SHALL PRODUCE A PRODUCT MEETING THE
<br />REQUIREMENTS OF THE STANDARD SPECIFICATIONS WITHOUT EXCEEDING 4.5 PERCENT AIR
<br />VOIDS. THE EXACT AMOUNT OF ASPHALT BINDER TO BE MIXED WITH THE AGGREGATE WILL
<br />BE DETERMINED BY THE ENGINEER BASED ON THE TESTS RESULTS PROVIDED. THE ASPHALT
<br />BINDER SHALL BE GRADE PG 64-10 AS SPECIFIED IN SECTION 92, "ASPHALTS", OF THESE
<br />SPECIAL PROVISIONS.
<br />WHEN THE ASPHALT CONCRETE IS TO BE PRODUCED IN A BATCH PLANT, THE ASPHALT
<br />CONCRETE SHALL BE PROPORTIONED AND MIXED BY THE AUTOMATIC METHOD.
<br />WHEN SHOWN IN THE ENGINEER'S ESTIMATE PRIME COAT, LIQUID ASPHALT PENETRATION
<br />GRADE SHALL BE SC -70 OR SC -250 AS DIRECTED BY THE ENGINEER AND DIRECTOR. THE
<br />PLACEMENT OF ASPHALT CONCRETE SHALL NOT BEGIN UNTIL 24 HOURS AFTER THE PRIME
<br />COAT IS APPLIED.
<br />PAINT BINDER (TACK COAT) SHALL BE APPLIED AT A RATE OF APPROXIMATELY 0.05 GALLON
<br />PER SQUARE YARD, UNLESS OTHERWISE SHOWN ON THE PLANS.
<br />ALL STEEL -TIRED ROLLERS SHALL BE OF THE TANDEM TYPE. THE THIRD PARAGRAPH OF
<br />SECTION 39-5.02, "COMPACTING EQUIPMENT," OF THE STANDARD SPECIFICATIONS, SHALL BE
<br />DELETED.
<br />THE DUMPING OF MATERIAL IN A WINDROW, IN ACCORDANCE WITH SECTION 39-6.01,
<br />"GENERAL REQUIREMENTS," OF THE STANDARD SPECIFICATIONS, SHALL BE LIMITED TO 750
<br />FEET IN ADVANCE OF THE PAVING MACHINE.
<br />THE SIXTH PARAGRAPH IN SECTION 39-6.01, "GENERAL REQUIREMENTS," OF THE STANDARD
<br />SPECIFICATIONS, SHALL BE AMENDED BY DELETING THE SECOND FOOTNOTE, WHICH READS,
<br />"AT THE OPTION OF THE CONTRACTOR, [0.25' OVERLAY MAY BE PLACED IN ONE LAYER 0.25'
<br />THICK."
<br />THE TENTH PARAGRAPH OF SECTION 39-6.03, "COMPACTING," OF THE STANDARD
<br />SPECIFICATIONS, ALLOWING THE USE OF "ALTERNATIVE COMPACTING EQUIPMENT" SHALL BE
<br />DELETED,
<br />UNLESS OTHERWISE SHOWN ON THE PLANS, ASPHALT PAVER EQUIPMENT USED TO PLACE
<br />ASPHALT CONCRETE SHALL BE EQUIPPED WITH FULL AUTOMATIC SCREED AND GRADE SENSING
<br />CONTROLS WHICH SHALL CONTROL THE LONGITUDINAL GRADE AND TRANSVERSE SLOPE OF
<br />THE SCREED: THE CONTROLS SHALL BE ACTUATED BY GRADE AND SLOPE REFERENCES.
<br />CORRECTIONS ON ACCOUNT OF DEVIATIONS FROM THE REFERENCES SHALL BE AUTOMATIC.
<br />GUIDES AND REFERENCES REQUIRED TO CONTROL THE LONGITUDINAL GRADE AND
<br />TRANSVERSE SLOPES SHALL BE FURNISHED AND INSTALLED BY THE CONTRACTOR.
<br />SHOULD THE CONTRACTOR ELECT TO USE A SKI DEVICE FOR LONGITUDINAL CONTROL, THE
<br />MINIMUM LENGTH OF THE DEVICE SHALL BE 30 FEET. THE DEVICE SHALL BE A RIGID UNIT
<br />MOUNTED ON MULTIPLE SUPPORTS, EACH SUPPORT SHALL ACT INDEPENDENTLY OF OTHERS
<br />AND THE FINISHED GRADE SHALL NOT BE AFFECTED BY THE ACTION OF A SINGLE SUPPORT.
<br />WHEN ASPHALT CONCRETE GUTTERS ARE DESIGNATED ON THE PLANS, A STRINGLINE OR WIRE
<br />GRADE REFERENCE SHALL BE REQUIRED TO CONTROL LONGITUDINAL GRADE OF THE GUTTER.
<br />THE GUTTER SHALL BE WATER TESTED BEFORE ACCEPTANCE. THE MAXIMUM DEVIATION FROM
<br />A TRUE GRADE SHALL NOT RESULT IN PONDING WATER FOR DEPTH EXCEEDING 0.04 FOOT.
<br />SURFACING OPERATIONS SHALL BE CONDUCTED IN SUCH A MANNER THAT, AT THE END OF
<br />EACH DAY'S WORK, THE DISTANCE BETWEEN THE ENDS OF ADJACENT SURFACED LANES SHALL
<br />NOT BE GREATER THAN CAN BE COMPLETED IN THE FOLLOWING DAY OF NORMAL SURFACING
<br />OPERATIONS.
<br />PORTABLE DELINEATORS IN CONFORMANCE WITH SECTION 12-3.04, "PORTABLE DELINEATORS,"
<br />OF THE STANDARD SPECIFICATIONS SHALL BE FURNISHED AND PLACED AT A MAXIMUM
<br />SPACING OF 300 FEET ON TANGENTS AND 100 FEET ON CURVES ALONG ANY EDGE OF NEW
<br />SURFACING WHICH HAS A DROP OFF OF MORE THAN 0.10 FOOT. DELINEATORS SHALL BE
<br />STAGGERED WHEN REQUIRED ON BOTH SIDES OF TRAFFIC. EXISTING PAVEMENT MARKERS SHALL
<br />BE REMOVED AND DISPOSED OF, UNLESS OTHERWISE SHOWN ON THE PLANS.
<br />DURING THE REMOVAL OF CERAMIC TYPE PAVEMENT MARKERS, SCREENS, OR OTHER
<br />PROTECTIVE DEVICES SHALL BE FURNISHED TO CONTAIN ANY FRAGMENTS AS PROVIDED FOR
<br />IN SECTION 7-1.09, "PUBLIC SAFETY," OF THE STANDARD SPECIFICATIONS,
<br />SECTION 39 ALTERNATE E LIQUID ASPHALT (PRIME COAT), --LIQUID ASPHALT (PRIME COAT)
<br />SHALL CONFORM TO THE REQUIREMENTS IN SECTIONS 39, "ASPHALT CONCRETE," AND 93,
<br />"LIQUID ASPHALT," OF THE STANDARD SPECIFICATIONS AND THESE SPECIAL PROVISIONS.
<br />LIQUID ASPHALT SHALL BE GRADE SC -70 OR SC -250 AND SHALL BE APPLIED AT THE
<br />APPROXIMATE TOTAL RATE OF 0.25 GALLON PER SQUARE YARD IN ONE APPLICATION. THE
<br />GRADE AND EXACT RATE OF APPLICATION WILL BE DETERMINED BY THE ENGINEER AND THE
<br />DIRECTOR. LIQUID ASPHALT SHALL NOT BE APPLIED WHEN THE ATMOSPHERIC TEMPERATURE IS
<br />BELOW 50' F. AT LOCATIONS WHERE PUBLIC TRAFFIC IS BEING ROUTED OVER THE ROADBED
<br />TO BE TREATED, THE PRIME COAT SHALL NOT BE APPLIED TO MORE THAN ONE-HALF THE
<br />WIDTH OF THE TRAVELED WAY AT A TIME, AND THE REMAINING WIDTH SHALL BE KEPT FREE
<br />OF OBSTRUCTIONS AND OPEN FOR USE BY PUBLIC TRAFFIC UNTIL THE TREATMENT FIRST
<br />APPLIED IS READY FOR USE BY PUBLIC TRAFFIC, LIQUID ASPHALT SHALL NOT BE APPLIED
<br />UNTIL A MINIMUM OF 24 HOURS AFTER THE COUNTY HAS ACCEPTED THE AGGREGATE BASE
<br />FOR SURFACE TOLERANCES AND COMPACTION REQUIREMENTS.
<br />SECTION 92: ASPHALTS
<br />92-1.01 DESCRIPTION
<br />(11/05)
<br />Sec. 10-1 Construction Details
<br />Std. Spec. Sec 92
<br />Alternate A
<br />Page 1 of 5
<br />• Asphalt shall consist of refined petroleum or a mixture of refined asphalt and refined
<br />solid asphalt, prepared from crude petroleum. Asphalt shall be:
<br />A. Free from residues caused by the artificial distillation of coal, coal tar, or paraffin.
<br />B. Free from water.
<br />C. Homogeneous.
<br />92-1.02 MATERIALS
<br />GENERAL
<br />• The Contractor shall furnish asphalt under the Department's "Certification Program
<br />for Suppliers of Asphalt." The Department maintains the program requirements,
<br />procedures, and a list of approved suppliers at:
<br />http://www.dot.ca.gov/hq/escfrranslab/fpmcoc.htm
<br />• The Contractor shall ensure the safe transportation, storage, use, and disposal of
<br />asphalt.
<br />• The Contractor shall prevent the formation of carbonized particles caused by
<br />overheating asphalt during manufacturing or construction.
<br />(SPE0S.cD8MSS92-A)
<br />(11/05)
<br />Sec. 10-1 Construction Details
<br />Std. Spec. Sec 92
<br />Alternate A
<br />Page 2 of 5
<br />GRADES
<br />• Performance graded (PG) asphalt binder shall meet the following:
<br />Petfurtrna rradpd 18hanr Rind",
<br />Property
<br />AASHTO
<br />-- Sperfration
<br />Grade
<br />W
<br />WQ
<br />Grade
<br />NO
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<br />Test
<br />PG
<br />PG
<br />FG
<br />PG
<br />1
<br />PG
<br />PBA
<br />Method
<br />58-22'
<br />6410
<br />6416
<br />6428
<br />70-10
<br />Onginal Binder
<br />Flash Part, Mnimurn °C
<br />T48
<br />230
<br />1 230
<br />230
<br />1 230
<br />230
<br />Solubility, Minimum % n
<br />T44
<br />99
<br />99
<br />99
<br />99
<br />99
<br />Viscosity at 1350C, c
<br />T316
<br />5000
<br />5000
<br />3000
<br />Kinematic Vlscosav 035.0, m'/s(x10')
<br />T201
<br />Maximum, Pas
<br />3.0
<br />3.0
<br />3.0
<br />3.0
<br />3.0
<br />Dynamic shear,
<br />T315
<br />2000
<br />RTFO Aped Residue ° Minimum
<br />275
<br />275
<br />Test Temp. at 10 rad/s, 'C
<br />275
<br />58
<br />64
<br />64
<br />64
<br />70
<br />Minimum G• sit deka kPa
<br />(60'C), Maximum
<br />1.00
<br />1.00
<br />1.00
<br />1.00
<br />1.00
<br />RTf-0 Test,'
<br />T240
<br />4.0
<br />4.0
<br />4.0
<br />4.0
<br />Flash Point, Cleveland Open Cup. *C,
<br />Mass LossM&,<Jnm% %
<br />1.00
<br />1.00
<br />1.00
<br />1.00
<br />1.00
<br />RTFO Test Aoed
<br />Binder
<br />Dynamic Shear,
<br />T315
<br />232
<br />232
<br />232
<br />Test Temp. at 10 rad/s, "C
<br />Mass Loss After RTFO Test %
<br />58
<br />64
<br />64
<br />64
<br />70
<br />Maximum G' s' delta We
<br />T44
<br />2.20
<br />2.20
<br />2.20
<br />2.20
<br />2.20
<br />Ductility at 25-C
<br />T51
<br />Report
<br />Report
<br />Report
<br />Ductility
<br />T51
<br />Mininourni, cm
<br />75
<br />75
<br />75
<br />75
<br />75
<br />PAV ' Aging,
<br />R28
<br />60
<br />60
<br />75
<br />On RTFO Aged Residue , •C:
<br />g
<br />Terriverature. "C
<br />100
<br />100
<br />100
<br />100
<br />110
<br />RTFO Test
<br />and PAV
<br />Aned Binder
<br />Dynamic Shear,
<br />T315
<br />-
<br />35
<br />-
<br />On Residue from
<br />Test Temp. at 10 rad/s,'C
<br />22 d
<br />31e
<br />28 °
<br />22 d
<br />34 d
<br />Minimum Glsi dens kPa
<br />100
<br />5000
<br />50 00
<br />5000
<br />5000
<br />5000
<br />Creep Stiffness,
<br />T313
<br />72
<br />SSD -11 SS .6 •C
<br />-
<br />-
<br />Test Temperature, °C
<br />25
<br />-12
<br />0
<br />-6
<br />-18
<br />0
<br />Maximum S -value, Mpa
<br />Test Temperature, 'C
<br />300
<br />300
<br />300
<br />300
<br />300
<br />Minimum M -value
<br />0.300
<br />0.300
<br />0.300
<br />0.300
<br />0.300
<br />~ a. For use as asphalt rubber base stock for high mountain and high desert area.
<br />to The Engineer will waive this specification f the supplier ls a Quality Supplier as defined by the Departments
<br />"Certification Program for Suppliers of Asphalt."
<br />c. The Esgireer will waive this spedficabon if the supplier sanies the asphalt Under an be adequately,
<br />pumped and mixed at temperatures meeting applicable safety standards.
<br />d. The Department will feet the sample at 3'C higher if a fats at the apecdied test la perat re. G'sirx(defa)
<br />shall remain 5000 kPa maximum.
<br />e. 'RTFOTosf means the asphaltic reside obtained using the Rolling Thin Film Oven Test AASHTOTest
<br />Method T240 or ASTM Designation: D 2872.
<br />f. "PAV' means Pressurized Aging Vessel.
<br />(SPECaCD&4aaa2-4)
<br />(11/05)
<br />Sec. 10-1 Construction Details
<br />Std. Spec. Sec 92
<br />Alternate A
<br />Page 5 of 5
<br />2. In trucks equipped with a calibrated thermometer that determines the
<br />asphalt temperature at the time of delivery and equipped with a vehicle
<br />tank meter meeting Section 9-1.01, "Measurement of Quantities," for
<br />weighing, measuring, and metering devices.
<br />• If the Contractor furnishes asphalt concrete from a mixing plant producing material for
<br />only one project, the Department will determine the amount of asphalt from volumetric
<br />measurements by measuring the amount in the tank at the start and the end of the
<br />project provided the tank is calibrated and equipped with its measuring stick and
<br />calibration card. The Engineer will determine pay quantities under the following:
<br />A Before converting the volume to mass, the Engineer will reduce the volume
<br />pleasured to that which the asphalt would occupy at 150C.
<br />B. The Engineer will use 981 Utonne and 1020 g/L for the average weight and
<br />volume for boat PG and PBA grades of asphalt at 15°C.
<br />C. The Engineer will use the Conversion Table in Section 93, "Liquid Asphalts."
<br />(SPECS.00SASSS92-A)
<br />(11/05)
<br />Sec.10-1 Construction Details
<br />Std. Spec. Sec 92
<br />Alternate A
<br />Page 3 of 5
<br />• Performance based asphalt (PBA) binder shah meet the following:
<br />Performance Basad As°halt Binder
<br />.v.oa.
<br />a. Pbsdrgeqty (60'C) wa be determined at ore sem' using ASTM Deagnabon: D 4957 with Asphat
<br />Institute vacuum capillary viscometers.
<br />b'RTFO Aged Resoclue'rrearis the asphaft residue obtained using the Roiling Thin Rim Oven Tea (RTFO
<br />Test), AASHrO Test Method T240 or ASTM Designation: D 2872.
<br />c. There is no reclunemert however results of the test "I be part of the certified ropy of test resin furnished
<br />with the Certificate of Compliance.
<br />d Actual results of the test shall be pert of the certified copy of test results and f PBA Grade 6a, 61b, or 7 is users, an
<br />additional statement verifying an acceptable Mash point shall be irctuded with the Certificate of Corroance.
<br />e. 'Res due from Tift Oven" means the asprat obtained using California Test 374, Method B, "Method for
<br />Determining Asphalt Durability Using the California lift -Oven Durability Test."
<br />I "SSD" means Shear Susceptibility of Deka. "SSV' means Shear Susceptibility of Viscosity.
<br />g California Test 381.
<br />h "PAV' means Pressurized Aging Vessel.
<br />(SPECS.CDs%ssss2-A)
<br />(11/05)
<br />Sec. 10-1 Construction Details
<br />Std. Spec. Sec 92
<br />Alternate A
<br />Page 4 of 5
<br />SAMPLING
<br />• The Contractor shall provide a sampling device in the asphalt feed line connecting
<br />plant storage tanks to the asphalt weighing system or spray bar. The sampling device
<br />shall be accessible between 600 mm and 750 mm above the platform. The Contractor
<br />shall provide a receptacle for flushing the sampling device.
<br />• The sampling device shall include a valve:
<br />A. With a diameter between 10 mm and 20 mm.
<br />B. Manufactured in a manner that a one -liter sample may be taken slowly at any
<br />time during plant operations.
<br />C. Maintained in good condition.
<br />• The Contractor shall replace failed valves.
<br />• In the presence of the Engineer, the Contractor will take 2 one -liter samples per
<br />operating day. The Contractor shall provide round, friction top, one -liter containers for
<br />storing samples.
<br />92-1.03 APPLYING ASPHALT
<br />• Unless otherwise specified, the Contractor shall heat and apply asphalt in
<br />conformance with the provisions in Section 93, "Liquid Asphalts."
<br />• The Contractor shall apply paving asphalt at a temperature between 1200C and
<br />1900C. The Engineer will determine the exact temperature of paving asphalt.
<br />92-1.04 MEASUREMENT
<br />• if asphalt is paid as a contract work item on a mass basis, the Department will
<br />measure asphalt by the tonne under the provisions for determining the mass for
<br />payment of liquid asphalt in Section 93, "Liquid Asphalt."
<br />• The Engineer will determine the mass of asphalt from volumetric measurements if the
<br />Contractor:
<br />A. Uses partial loads of asphalt.
<br />B. Uses asphalt at locations other than a mbdng plant and no suitable scales are
<br />available within 35 km.
<br />C. Delivers asphalt meeting either of the following:
<br />1. In calibrated trucks and each tank is accompanied by its measuring stick
<br />and calibration card.
<br />(SPECS.CDS%SS892-A)
<br />NO. 62009
<br />EXP. 9/30/2009
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<br />Specification
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<br />Grade
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<br />AASHTO
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<br />Test
<br />PBA
<br />PBA
<br />PBA
<br />PBA
<br />Property
<br />Method
<br />Be
<br />6a
<br />6b
<br />7
<br />Absolute Viscosity (600C), Pa's(x10 '
<br />T202
<br />lr-�
<br />Z
<br />Origin Bixler, Minimum
<br />2000
<br />2000
<br />2000
<br />1100
<br />RTFO Ailed Residue ° Minimum
<br />5000
<br />5000
<br />5000
<br />3000
<br />Kinematic Vlscosav 035.0, m'/s(x10')
<br />T201
<br />OQ
<br />Z86
<br />O
<br />Original Bider, Maximum
<br />2010
<br />2000
<br />2000
<br />2000
<br />RTFO Aped Residue ° Minimum
<br />275
<br />275
<br />275
<br />275
<br />Absolute Viscosity Ratio
<br />Lli
<br />Z
<br />W
<br />J
<br />N
<br />(60'C), Maximum
<br />/LLJ
<br />RTFO Test VisciOng. Visc.
<br />Q
<br />4.0
<br />4.0
<br />4.0
<br />4.0
<br />Flash Point, Cleveland Open Cup. *C,
<br />T48
<br />Original Birder, Minimum
<br />232
<br />232
<br />232
<br />232
<br />Mass Loss After RTFO Test %
<br />T240
<br />0.60
<br />0.60
<br />0.60
<br />0.60
<br />Solrbity in Trichloroethylene, % C
<br />T44
<br />Original Bider, Minimum
<br />Report
<br />Report
<br />Report
<br />Report
<br />Ductility
<br />T51
<br />(250C, 5 cm/min), cm
<br />RTFO A Residue ° Minimum
<br />60
<br />60
<br />60
<br />75
<br />On RTFO Aged Residue , •C:
<br />g
<br />1 to 10 radsec: SSD' 0 and
<br />Phase at t racilsec < 72'
<br />-
<br />35
<br />-
<br />On Residue from
<br />R28
<br />PAV "at temp., •C
<br />100
<br />100
<br />100
<br />110
<br />Or Residue from Tilt Oven' 113'C hours
<br />36
<br />36
<br />36
<br />72
<br />SSD -11 SS .6 •C
<br />-
<br />-
<br />-
<br />25
<br />sukH ss,
<br />T313
<br />Test Temperature, 'C
<br />-24
<br />-24
<br />-30
<br />-6
<br />Maximum S -value, Mpg
<br />300
<br />300
<br />300
<br />300
<br />Minimum Wvalue
<br />0.300
<br />0.300
<br />0.300
<br />0.300
<br />.v.oa.
<br />a. Pbsdrgeqty (60'C) wa be determined at ore sem' using ASTM Deagnabon: D 4957 with Asphat
<br />Institute vacuum capillary viscometers.
<br />b'RTFO Aged Resoclue'rrearis the asphaft residue obtained using the Roiling Thin Rim Oven Tea (RTFO
<br />Test), AASHrO Test Method T240 or ASTM Designation: D 2872.
<br />c. There is no reclunemert however results of the test "I be part of the certified ropy of test resin furnished
<br />with the Certificate of Compliance.
<br />d Actual results of the test shall be pert of the certified copy of test results and f PBA Grade 6a, 61b, or 7 is users, an
<br />additional statement verifying an acceptable Mash point shall be irctuded with the Certificate of Corroance.
<br />e. 'Res due from Tift Oven" means the asprat obtained using California Test 374, Method B, "Method for
<br />Determining Asphalt Durability Using the California lift -Oven Durability Test."
<br />I "SSD" means Shear Susceptibility of Deka. "SSV' means Shear Susceptibility of Viscosity.
<br />g California Test 381.
<br />h "PAV' means Pressurized Aging Vessel.
<br />(SPECS.CDs%ssss2-A)
<br />(11/05)
<br />Sec. 10-1 Construction Details
<br />Std. Spec. Sec 92
<br />Alternate A
<br />Page 4 of 5
<br />SAMPLING
<br />• The Contractor shall provide a sampling device in the asphalt feed line connecting
<br />plant storage tanks to the asphalt weighing system or spray bar. The sampling device
<br />shall be accessible between 600 mm and 750 mm above the platform. The Contractor
<br />shall provide a receptacle for flushing the sampling device.
<br />• The sampling device shall include a valve:
<br />A. With a diameter between 10 mm and 20 mm.
<br />B. Manufactured in a manner that a one -liter sample may be taken slowly at any
<br />time during plant operations.
<br />C. Maintained in good condition.
<br />• The Contractor shall replace failed valves.
<br />• In the presence of the Engineer, the Contractor will take 2 one -liter samples per
<br />operating day. The Contractor shall provide round, friction top, one -liter containers for
<br />storing samples.
<br />92-1.03 APPLYING ASPHALT
<br />• Unless otherwise specified, the Contractor shall heat and apply asphalt in
<br />conformance with the provisions in Section 93, "Liquid Asphalts."
<br />• The Contractor shall apply paving asphalt at a temperature between 1200C and
<br />1900C. The Engineer will determine the exact temperature of paving asphalt.
<br />92-1.04 MEASUREMENT
<br />• if asphalt is paid as a contract work item on a mass basis, the Department will
<br />measure asphalt by the tonne under the provisions for determining the mass for
<br />payment of liquid asphalt in Section 93, "Liquid Asphalt."
<br />• The Engineer will determine the mass of asphalt from volumetric measurements if the
<br />Contractor:
<br />A. Uses partial loads of asphalt.
<br />B. Uses asphalt at locations other than a mbdng plant and no suitable scales are
<br />available within 35 km.
<br />C. Delivers asphalt meeting either of the following:
<br />1. In calibrated trucks and each tank is accompanied by its measuring stick
<br />and calibration card.
<br />(SPECS.CDS%SS892-A)
<br />NO. 62009
<br />EXP. 9/30/2009
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