The minimum SBR polymer latex content shall be 2.5 %. The SBR polymer latex content may be reduced below the minimum content provided, if the following requirements are met: 1. An AASHTO accredited laboratory shall blend the PG binder and SBR polymer latex at the proposed SBR polymer latex content and test and grade the modified PG binder in accordance with AASHTO 30 M 320.
902.01(a) shall be submitted to the Engineer for approval
changed.
An acceptance sample and backup sample shall be taken from the asphalt delivery 40 system at the HMA plant. A copy of a load ticket identifying the binder source shall be submitted with the samples. The Engineer will take immediate possession of the samples.
The Department will perform complete testing in accordance with AASHTO M 320. Complete PG binder testing will cons ist of RTFO DSR and PAV BBR testing. Rotational viscosity and flashpoint tests are not required. If the material is not in accordance with the specifications, the material will represent one week of HMA production and be adjudicated as a faile d material in accordance with 105.03. 50
made in writing for additional testing. The appeal shall be submitted within 15 calendar days of receipt of the Department’s written results. The basis of the appeal shall include complete AASHTO M 320 test results. (b) Asphalt Emulsions Asphalt emulsions shall be from a supplier listed on the QPL of Asphalt Emulsion Suppliers. An emulsion will be considered for inclusion on the QPL by following ITM 60 593. Asphalt emulsions may contain additives to improve handling and performance characteristics. Failure of an emulsion to perform satisfactorily in the field shall be cause for rejection, even though it passes la boratory tests. The grade used shall be in accordance with the table for asphalt emulsions as shown herein. A Type C certification in accordance with 916 shall be provided for the asphalt emulsion. The requirements for asphalt emulsions are as follows: 902.01 987Characteristics(1)Test MethodAE-90 AE-90S AE-NT AE-F AE-150 AE-PL Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Test on Emulsion Viscosity, Saybolt Furol at 25°C (77°F), s or Viscosity, Rotational Paddle at 25°C (77°F), mPa*sAASHTO T 5915 30100 200100 20050 100115 230 Viscosity, Saybolt Furol at 50°C (122°F), s or Viscosity, Rotational Paddle at 50°C (122°F), mPa*sAASHTO T 5950 10050 10075 150300 600 Demulsibility w/35 mL, 0.02N CaC1 2, %AASHTO T 59 30 Demulsibility w/50 mL, 0.10N CaC1 2, %AASHTO T 59 75 Oil Distillate by Distillation, mL/100 g Emulsion(2) AASHTO T 59 4.0 3.0 4.0 4.0 7.0 3.0 Residue by Distillation, % AASHTO T 59 65 65(4)50 27 35 65 30 Sieve Test, sample retained, % AASHTO T 59 0.10 0.10 0.30 0.10 0.10 0.10 Penetrating Ability, mm 902.02(u) 6.0 Stone Coating Test, % 902.02(r)3a 90 90 Settlement, % (5 days) AASHTO T 59 5.0 5.0 Storage Stability, % AASHTO T 59 1.0 (continued on next page) 70 902.01 988(continued from previous page) Characteristics(1)Test MethodAE-90 AE-90S AE-NT AE-F AE-150 AE-PL Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Tests on Residue Penetration (0.1 mm) at 25°C (77°F), 100g, 5 s(3) AASHTO T 49 100 200 90 150 40 90 Penetration (0.1 mm) at 25°C (77°F), 50g, 5 s
Ductility at 25°C (77°F), mm AASHTO T 51 400 Ash Content, % AASHTO T 111 1.0 1.0 1.0 1.0 1.0 1.0 Float Test at 60°C (140°F), s(3)AASHTO T 50 1200 1200 1200 Force Ratio AASHTO T 300 0.30 Elongation Recovery, at 4°C (39°F) AASHTO T 301 58 Notes:(1)Broken samples or samples more than 14 days old will not be tested. (2)Oil distillate shall be in accordance with ASTM D396, table 1, grade No. 1. (3)The Engineer may waive the test. (4)Maximum tem perature to be held for 15 minutes at 350 ±9°F (175 ±5°C ). RS-2, HFRS-2, and SS-1h shall be in accordance with AASHTO M 140, except the cement mixing test is waived. CRS-2P and HFRS-2P shall be in accordance with AASHTO M 316. The distillation temperature shall be 350°F. CSS-1h shall be in accordance with AASHTO M 208. 80 902.01
989 1. Asphalt Emulsion Warranted Micro-Surfacing The polymer modified asphalt emulsion shall be a quick-set, CSS-1h emulsion in accordance with AASHTO M 208 , except the cement-mixing test is waived. The polymer material shall be milled or blended into the asphalt or blended into the emulsifier solution prior to the emulsification process. The minimum polymer solids content will be 3.0% based on the residual of the emulsion. Mix set additives shall be added as required to provide cont rol of the quick-set properties. Additional requirements shall be in accordance with the following: 90 Characteristics Test Method Requirements Residue by Distillation, % (Note) AASHTO T 59 62+ Softening Point, °F (°C) AASHTO T 53 140+ (60+) Viscosity @ 140°F (60°C) AASHTO T 202 8000+ Elastic Recovery @ 25°C (77°F), % AASHTO T 301 60+ Note: The distillation temperature for this test shall be 350°F (175°C).
Characteristics Test Method Min. Max. Viscosity, Saybolt Furol @ 77°F (25°C), s AASHTO T 59 20 100 Storage Stability Test, 24 h, % (Note 1) AASHTO T 59 1 Sieve Test, % AASHTO T 59 0.05 Residue by Distillation, % (Note 2) AASHTO T 59 63 Oil Distillate by volume of emulsified asphalt, % AASHTO T 59 2 Demulsibility, % w/35 mL, 0.02 N CaCl2 or AASHTO T 59 60 w/35 mL, 0.8% DSS AASHTO T 59 Tests on Residue from Distillation Penetration (0.1 mm) at 77°F (25°C), 100g, 5 s AASHTO T 49 90 150 Elastic Recovery @ 39°F (4°C), % AASHTO T 301 58 Notes:
902.01
990 3. Asphalt Emulsion Recycling
Characteristics (Note 1) Test Method Min. Max. Viscosity, Saybolt Furol, @ 77°F (25°C), SFS AASHTO T 59 20 100 Sieve Test, No. 20, retained on sieve, % AASHTO T 59 0.10 Storage Stability Test, 24 hr, % AASHTO T 59 1 Residue by Distillation, % (Note 2) AASHTO T 59 64 Oil Distillate by volume of emulsified asphalt, % AASHTO T 59 1 Penetration, 77°F (25°C), 100 g, 5 s, dmm AASHTO T 49 50 200 Notes:
supplier based on the Contractor’s mixture design. The penetration of the supplied asphalt emulsion shall be within ±25 dmm of the penetration of the design asphalt emulsion. The asphalt emulsion shall be received on the job site at a temperature no greater than 120ºF (50°C).
with a 20-minute hold.
Characteristics Test Method Requirements Test on Emulsion Viscosity, Saybolt Furol at 25°C, max. AASHTO T 59 50 Sieve Test, %, max. AASHTO T 59 0.10 Oil Distillate by Volume of Emulsified Asphalt, %, max. AASHTO T 59 1.0 Identification Test, %, min. ITM 599 60 Water Resistance Test, %, min. ITM 598 60 Residue by Distillation*, %, min. AASHTO T 59 30 Test on Residue Penetration (0.1 mm) at 25C, 100g, 5s, max. AASHTO T 49 150 Ash Content, %, max. AASHTO T 111 1.0 * The minimum sam ple size shall be 300 g.
The asphalts shall be uniform in character and shall not foam when heated to 350°F. Utility asphalts shall be in accordance with the following: 902.01
991 Characteristics/Grades UA-I UA-II UA-III Softening Point (Ring & Ball), °C 46 - 63 63 - 85 79.5 - 96 Penetration of Original Samples(1) (0.1 mm) at 4°C, 200 g, 60 s, min…… at 25°C, 100 g, 5 s………… at 46°C, 50 g, 5 s…………. 50 - 100 100 min. 25 - 45 130 max. 15 - 35 90 max. Ductility @ 25°C, 50 mm/min, 10 mm, min.(1) 30 10 2.5 Solubility in Organic Solvents, % min.(1) 99.0 99.0 99.0 Flash Point (Cleveland Open Cup), °C, min.(1) 225 225 225 Penetration of Residue from Thin Film Oven Test, 25°C, 100 g, 5 s, (0.1 mm) min.(1) 30 15 10
A Type A certification in accordance with 916 shall be provided for utility asphalt. 110 The results of the above shall be shown on the certification. (e) Asphalt for Coating Corrugated Metal Pipe Asphalt for coating corrugated metal pipe shall be in accordance with the following:
Physical Properties Min. Max. Softening Point (Ring & Ball), °C 93 110 Penetration of Original Samples (0.1 mm) at 4°C, 200 g, 60 s………… at 25°C, 100 g, 5 s………… (1)
Solubility in Organic Solvents, % 99.0 Flash Point (Cleveland Open Cup), °C 232 Flow Test, mm 6.4 Shock Test 3 of 4 specimens shall pass
A Type A certification in accordance with 916 shall be provided for asphalt coating to the pipe fabricator on corrugated metal pipe. The results of the above shall be shown on the certification. 120
902.02Sampling and Testing Asphalt Materials
The tests and AASHTO references are as follows:
The following exceptions to AASHTO R 66 shall apply:
incorporated into the work. 130 902.02
992 2. Samples for all grades of asphalt emulsion shall be a minimum of 1/2 gal. The size of samples of other liquid material may be 1 qt.
following:
tank or line and asphalt plant storage tanks from 140 sampling valves located in the tank,
approved, and
Crude Petroleum and Liquid Products by Hydrometer Method ............................................. ASTM D1298 (d) Specific Gravity of Semi-Solid Bituminous Materials ............................................................... AASHTO T 228
160
“Flash Point by Cleveland Open Cup” ....... AASHTO T 48 2. When the flash point is 175°F or lower, “Flash Point with Tag Open Cup” .............. AASHTO T 79
Ring and Ball ........................................................ AASHTO T 53 170
solvent may be 1,1,1,-Trichloroethane ................. AASHTO T 44 902.02
993
180
the specimens may be shortened, and that only one normal test will be required. Shortened conditioning period: The specimen shall be allowed to cool in air for at least 30 minutes. It shall then be trimmed and placed in the water bath for a period of 60 to 90 minutes before testing. In case of failure or dispute, three normal tests will be required and specimens shall be conditioned as in AASHTO T 51. 190
( o ) .LQHPDWLF9LVFRVLW\RI$VSKDOWV .......................... AASHTO T 201
Thin-Film Oven Test ............................................ AASHTO T 179
Asphalt, Rolling Thin Film Oven Test ................. AASHTO T 240
The following exceptions to AASHTO T 59 shall apply:
alloy still shall be the referee still.
emulsion grades RS-2 and AE-90 only, may be determined by the Residue by Evaporation test of AASHTO T 59. The % of residue shall be determined by the Residue of Distillation test in all cases of failure or dispute.
mixture of 465 ±1 g of reference stone and 35.0 ±0.1 g of asphalt emulsion:
vigorously for 5 minutes. At the end of the mixing period, the mix shall be rinsed by running sufficient tap water at the side of the container to completely immerse the mix. The 902.02
994 tap water shall then be poured off and the rinsing step repeated as necessary until the rinse water pours off essentially clear. The stone sh all remain a minimum of 90% coated.
vigorously for 5 minutes and then allowed to stand for 3 h. 230 At the end of this time, the mixture shall again be mixed vigorously for 5 minutes. At the end of the second mixing period, the mix shall be rinsed by running sufficient tap water at the side of the container to completely immerse the mix. The tap water shall then be poured off and the rinsing step repeated as necessary until the rinse water pours off essentially clear. The stone sh all remain a minimum of 90% coated.
required. In case of failure or dispute, the specified procedure in AASHTO T 59 will be followed.
of milliliters of oil per 100 g of emulsion.
without additives, shall be performed as follows:
be obtained for testing. The size of test specimen and the amount of distilled water shall be:
Approximate Size of Aggregate Minimum Weight of Test Specimen Amount of Distilled Water Sand 100 g 400 mL 12 100 g 400 mL 11 150 g 600 mL 9 200 g 600 mL
Place the specimen in the boiling distilled water and stir with a glass rod at the rate of one revolution per second for 3 minutes. The aggregate shall retain a mini mum of 90% of its asphalt film compared with the remainder of the sample, upon completion of this procedure. 260 2 . Test 2 . Approximately 500 g of produced mixture shall be heated to 250°F in a laboratory oven for 2 h, stirred, and cooled to 200°F. A portion of the mix shall then be placed in boiling 902.02
995 distilled water, quantity of mix and quantity of boiling water shall be as specified in Test 1, and stirred with a glass rod at the rate of one revolution per second for 3 minutes. The aggregate shall retain a minimum of 90% of its asphalt film compared with the remainder of the sample, upon completion of this procedure. 270 Note: The purpose of these tests is to determine the relative compatibility of the aggregate and asphalt, and to detect tendency of Asphalt Emulsions to re-emulsify. If Test 1 returns unsatisfactory results, Test 2 may be performed as a method of determining whether compatibility can be achieved.
passing No. 50 (300 mm) sieve only. Reference Limestone Dust used by the Department is Limestone Calcium Carbonate manufactured by France 290 Stone Co. The Department will furnish approximately 5 lb of Reference Limestone Dust upon request .................... 10 parts
300
suitable for compacting sand by applying a 20 psi load. The compacting device shall include an adapter consisting of two metal discs slightly smaller in diameter than a 6 oz ointment tin separated by a spacer 1 to 2 in. The 2.54 in. diameter discs used in determining weight of coating in AASHTO T 65 or ASTM A90 are satisfactory. 902.02
996 310
Thoroughly mix Standard Ottawa Sand, Reference Limestone Dust, and water. Weigh 190 ±1 g of sand mixture into a 6 oz ointment tin. Level surface of sa nd with a spatula. Place the compacting adapter on the sand surface and slowly, over a period of about 5 s, compact the sand until the 20 psi load is achieved, which is approximately 100 lb on the Rimac Spring Tester. Remove the compacting device, avoiding disturbance to 320 the sand surface. Quickly pour 12 g of the emulsion from a height of about 4 in. onto top of sand mixture. Start timer at start of pour. Stop timer when all emulsion penetrates into sand mixture. Delay 2 minutes then remove sand and mixture from one side of ointment tin, about 1/2 of mixture. Measure to determine average depth of penetration into sand mixture. Penetration time shall be 100 s or less; penetration depth shall be 6.0 mm or more.
Corrugated Metal Pipe .......................................... AASHTO M 190
Corrugated Metal Pipe .......................................... AASHTO M 190
Binder Using Rotational Viscometer .................... AASHTO T 316 (y) Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear 340 Rheometer............................................................. AASHTO T 315
Using a Pressurized Aging Vessel ........................ AASHTO R 28
Asphalt Binder Using the Bending Beam Rheometer............................................................. AASHTO T 313 902.03 Application Temperatures 350 Binder materials for the several applications indicated in the specifications shall be applied at temperatures not to exceed those shown in the following: 902.03
997 Type and Grade of Material Application Temperature, °F, max. Spray Mix SC-800-3000, SCA-800-3000 .... All Penetration and Viscosity, 225 250 275 200 225 250 160
350 (see Note) 200 225 250
225 250 180
325 (see Note) Note: In accordance with manufacturer’s recommendations.