702.01 Asphalt Cements.
a.Superpave Performance Graded Binders. Superpave Performance Graded Binders shall conform to the requirements listed in Table 702-1. (Taken from AASHTO M 320) Asphalt cement shall not be acid modified or alkaline modified. Asphalt cement shall not contain any used oils that have not been rerefined. Modifiers that do not comply with environmental rules and regulations including 40 CFR Part 261.6(a) (3) (IV), and part 266/Subpart C shall not be added. Modifiers shall not be carcinogenic. The supplier of the PG binder shall be certified per CP 11. Table 702-1 Superpave Performance Graded Binders Requirement For PG Binder - Original Binder Properties AASHTO Property 58-28 58-34 64-22 64-28 70-28 76-28 Test No. Flash Point Temp., °C, 230 230 230 230 230 230 T 48 minimum Viscosity at 135 °C, 3 3 3 3 3 3 T 316 Pa●s, maximum Dynamic Shear, Temp. °C, where G*/Sin δ @ 58 58 64 64 70 76 T 315 10 rad/s ≥ 1.00 kPa Ductility, 4 °C (5 cm/min.), cm - - - 50 - T 51 minimum Toughness, joules 12.4 CP-L - - - - (inch-lb) (110) 2210 Tenacity, joules (inch- 8.5 CP-L - - - - lb) (75) 2210 CP-L Pass Pass Pass Pass Pass Pass Acid or Alkali 2214 Modification (pass-fail) 702- 1 702.01 Table 702-1 Superpave Performance Graded Binders (continued) Requirement For PG Binder - RTFO Residue Properties, CPL-L 2215 AASHTO Property 58-28 58-34 64-22 64-28 70-28 76-28 Test No. Mass Loss, percent 1 1 1 1 1 1 CP-L 2215 maximum Dynamic Shear, Temp. °C, where 58 58 64 64 70 76 T 315 G*/Sin δ @ 10 rad/s ≥ 2.20 kPa Elastic Recovery, 25 °C, percent - - - - 50 50 T 301 min. Ductility, 4 °C (5 cm/min.), cm - - - 20 - - T 51 minimum Requirement For PG Binder - PAV Residue Properties, Aging Temperature 100°C, R 28 AASHTO Property 58-28 58-34 64-22 64-28 70-28 76-28 Test No. Dynamic Shear, Temp. °C, where 19 16 25 22 25 28 T 315 G*●Sin δ @ 10 rad/s ≤ 6000 kPa Creep Stiffness, @ 60 s, Test -18 -24 -12 -18 -18 -18 T 315 Temperature in °C S, maximum, MPa 300 300 300 300 300 300 T 313 m-value, minimum 0.3 0.3 0.3 0.3 0.3 0.3 T 313 Acceptance Samples of the PG binder will be taken on the project per the Schedule in the Field Materials Manual. The Department will test for acid modification and alkaline modification during the binder certification process. Thereafter, the Department will randomly test for acid modification and alkaline modification.
b.Dampproofing. Asphalt for dampproofing shall conform to the requirements of ASTM D449, and the asphaltic primer shall conform to the requirements of ASTM D41. 702- 2 702.02
702.02 Emulsified Asphalts. Emulsified asphalts shall conform to AASHTO M 140 or M 208 for
the designated types and grades. Emulsified asphalt and aggregate used for surface seals shall be sampled and will be tested for information only per CP-L 2213. Emulsified asphalt (HFMS-2S) with a residual penetration greater than 300 dmm (0.1 mm) shall conform to all properties listed in AASHTO M 140, Table 1 except that ductility shall be reported for information only.
a.Emulsion for Tack and Fog Coats. Emulsions for tack and fog coats shall conform to the requirements listed in Table 702-2 or 702-3, before dilution. Table 702-2 Tack and Fog Coat Emulsions Tests on Emulsion AASHTO Property CSS-1h SS-1h Test No. Min. 20, Minimum Viscosity, at 25 ºC, Saybolt-Furol, s 20 T 59 max. 100 Maximum Viscosity, at 25 ºC, Saybolt-Furol, s 100 100 T 59 Storage stability, 24 hr, % max.* 1 1 T 59 Particle charge test Positive T 59 Sieve test, % max. 0.1 0.1 T 59 Oil Distillate by volume, % max. 3 3 T-59 T 59/ Residue by distillation/ evaporation, % min. 57 57 CP-L 2212# Tests on Residue AASHTO Property CSS-1h SS-1h Test No. Penetration, 25 ºC, 100g, 5s, min., dmm 40 40 T 49 Penetration, 25 ºC, 100g, 5s, max., dmm 120 120 T 49 Ductility, 25 ºC, 5 cm/min, cm, min. 40 40 T 51 Solubility, in trichloroethylene% min. 97.5 97.5 T 44 *If successful application is achieved in the field, the Engineer. may waive this requirement. # CP-L 2212 is a rapid evaporation test for determining percent residue of an emulsion and providing material for tests on residue. CP-L 2212 is for acceptance only. If the percent residue or any test on the residue fails to meet specifications, the tests will be repeated using the distillation test per AASHTO T-59 to determine acceptability. For polymerized emulsions the distillation and evaporation tests will be performed per AASHTO T-59 or CP-L 2212 respectively with modifications to include 205 ± 5 ºC (400 ± 10 ºF) maximum temperature to be held for 15 minutes. 702- 3 702.02
b.Emulsion for Chip Seals. Polymerized emulsions for chip seals shall conform to the requirements listed in Table 702-3. Emulsion for chip seals shall be an emulsified blend of polymerized asphalt, water, and emulsifiers. The asphalt cement shall be polymerized before emulsification and shall contain at least 3 percent polymer by weight of asphalt cement. The emulsion standing undisturbed for a minimum of 24 hours shall show no white, milky separation but shall be smooth and homogeneous throughout. The emulsion shall be pumpable and suitable for application through a distributor. Table 702-3 Polymerized Emulsions for Chip Seals Tests On Emulsion AASHTO Property CRS-2 CRS-2P CRS-2R HFMS-2P Test No. Min. Viscosity, at 50 ºC, 50 50 50 50 T 59 Saybolt-Furol, s Max. Viscosity, at 50 ºC, 450 450 450 450 T 59 Saybolt-Furol, s Storage stability, 24 hr, 1 1 1 1 T 59 % max. Particle charge test Positive Positive Positive T 59 Sieve test, % max. 0.1 0.1 0.1 0.1 T 59 Demulsibility*, % min. 40 40 40 T 59 Oil Distillate by volume, 3 3 3 3 T-59 % max. or range Residue by distillation/ T 59/ CP- 65 65 65 65 evaporation, % min L 2212# Tests on Residue AASHTO Property CRS-2 CRS-2P CRS-2R HFMS-2P Test No. Penetration, 25 ºC, 70 70 70 70 T 49 100g, 5s, min., dmm Penetration, 25 ºC, 150 150 150 150 T 49 100g, 5s, max., dmm Ductility, 25 ºC, 5 40 75 T 51 cm/min, cm, min. Ductility, 4 ºC, 5 cm/min, cm, min. Solubility, in trichloroethylene, % 97.5 97.5 97.5 97.5 T 44 min. Elastic Recovery, 25 ºC 58 T 301 min. Float Test, 60 ºC, s min. 1200 T 50 Toughness, in-lb, min. 70 90 CP-L 2210 Tenacity, in-lb, min. 45 45 CP-L 2210 702- 4 702.02 Notes for Table 702-3 *If successful application is achieved in the field, the Engineer. may waive this requirement. #CP-L 2212 is a rapid evaporation test for determining percent residue of an emulsion and providing material for tests on residue. CP-L 2212 is for acceptance only. If the percent residue or any test on the residue fails to meet specifications, the tests will be repeated using the distillation test in acccordance with AASHTO T-59 to determine acceptability. For polymerized emulsions the distillation and evaporation tests will be performed per AASHTO T-59 or CP-L 2212 respectively with modifications to include 205 ± 5 ºC (400 ± 10 ºF) maximum temperature to be held for 15 minutes. Solubility may be determined on the base asphalt cement before polymer modification.
c.Emulsion for Slurry Seals and Micro-Surfacing. Emulsions for slurry seals and micro-surfacing shall conform to the requirements listed in Table 702-4. The modified emulsion shall contain a minimum of 3 percent polymer, SBR latex, or natural latex by weight. Table 702-4 Slurry Seal and Micro-Surfacing Emulsions Tests on Emulsion AASHTO Property CQS-1hL CQS-1hP Test No. Min. Viscosity, at 25 ºC, Saybolt-Furol, s 15 15 T 59 Max. Viscosity, at 25 ºC, Saybolt-Furol, s 100 100 T 59 Storage stability, 24 hr, % max.* 1.0 1.0 T 59 Particle charge test Positive Positive T 59 Sieve test, % max. 0.10 0.10 T 59 Oil Distillate by volume, % max. 0.5 0.5 T-59 Residue by distillation/ evaporation, % T 59/CP-L 62 62 min. 2212# Tests on Residue AASHTO Property CQS-1hL CQS-1hP Test No. Penetration, 25 ºC, 100g, 5s, min., 40 40 T 49 dmm Penetration, 25 ºC, 100g, 5s, max., 150 150 T 49 dmm Ductility, 25 ºC, 5 cm/min, cm, min. 50 50 T 51 Solubility, in trichloroethylene% min. 97.5 97.5 T 44 Table 702-4 Notes: *If successful application is achieved in the field, the Engineer. may wave this requirement. # CP-L 2212 is a rapid evaporation test for determining percent residue of an emulsion and providing material for tests on residue. CP-L 2212 is for acceptance only. If the percent residue or any test on the residue fails to meet specifications, the tests will be repeated using the distillation test per AASHTO T-59 to determine acceptability. 702- 5 702.02 For polymerized emulsions the distillation and evaporation tests will be performed per AASHTO T-59 or CP-L 2212 respectively with modifications to include 205 ± 5 ºC (400 ± 10 ºF) maximum temperature to be held for 15 minutes.
d.Emulsion for Prime Coat. Emulsion for prime coat shall conform to the requirements of Table 702-5. Circulate before use if not used within 24 hours. Table 702-5 Asphalt Emulsion For Prime Coat (AEP) Property Requirement AASHTO Test No. Viscosity, Saybolt-Furol, at 50 °C (122 °F), 20-150 T 59 s % Residue 65% min. T 59, to 260 °C, (500 °F) Oil Distillate by Volume, % 7% max. T59 Tests on Residue from Distillation Property Requirement AASHTO Test No. Solubility in Trichloroethylene, % 97.5 min. T 44
e.Recycling Agent. Recycling Agent for Item 406, Cold Bituminous Pavement (Recycle), shall be either a high float emulsified asphalt (polymerized) or an emulsified recycling agent as follows:
1.High Float Emulsified Asphalt (Polymerized). High Float Emulsified Asphalt (Polymerized) for Cold Bituminous Pavement (Recycle) shall be an emulsified blend of polymer-modified asphalt, water, and emulsifiers conforming to Table 702-6 for HFMS-2sP. The asphalt cement shall be polymerized before emulsification and shall contain at least 3 percent polymer. The emulsion standing undisturbed for a minimum of 24 hours shall show no white, milky separation, and shall be smooth and homogeneous throughout. The emulsion shall be pumpable and suitable for application through a pressure distributor. 702- 6 702.02 Table 702-6 High Float Emulsified Asphalt (Polymerized) (HFMS-2sP) Tests on Emulsion Minimum Maximum AASHTO Property Requirement Requirement Test No. Viscosity, Saybolt-Furol at 50 °C (122 °F), sec 50 450 T 59 Storage Stability test, 24 hours, % 1 T 59 Sieve test, % 0.10 T 59 Residue, %* 65 T 59 Oil distillate by volume, % 1 7 T 59 Tests on Residue Property Minimum Maximum AASHTO Requirement Requirement Test No. Penetration, 25 °C (77 °F), 100g, 5 sec 150 300# T 49 Float Test, 60 °C (140 °F), sec 1200 T 50 Solubility in TCE, % 97.5 T 44 Elastic Recovery, 4 °C (39.2 °F), % 50 T 301 Table 702-6 Notes: *400 ± 10 °F maximum temperature to be held for 15 minutes. #When approved by the Engineer, Emulsified Asphalt (HFMS-2sP) with a residual penetration greater than 300 dmm may be used with Cold Bituminous Pavement (Recycle) to address problems with cool weather or extremely aged existing pavement. Emulsified Asphalt (HFMS-2sP) with a residual penetration greater than 300 dmm shall meet all properties listed in Table 702-6 except that Elastic Recovery shall be reported for information only. 702- 7 702.02
2.Emulsified Recycling Agent. Emulsified Recycling Agent for use in Cold Bituminous Pavement (Recycle) shall conform to the requirements in Table 702-7. Table 702-7 Emulsified Recycling Agent Tests on Emulsion Minimum Maximum Property Test Requirement Requirement Viscosity @ 25 °C, SFS 20 200 ASTM D244 Pumping Stability Pass GB Method* Sieve Test, %w 0.1 ASTM D244# Cement Mixing, %w 2.0 ASTM D244 Particle Charge Positive ASTM D244 Conc. Of Oil Phase 64 ASTM D244 Tests on Residue Minimum Maximum Property Test Requirement Requirement Viscosity @ 60 °C, CST 2000 4000 ASTM D2170 Flash Point, COC, °C (° F) 232 ASTM D92 Maltenes Dist. PC+A1 0.3 0.6 ASTM D2006 Ratio S+A2 PC/S Ratio 0.4 ASTM D2006 Asphaltenes, % max. 11.0 ASTM D2006 Table 702-7 Notes: *Pumping stability is determined by charging 450 ml of emulsion into a one-liter beaker and circulating the emulsion through a gear pump (Roper 29.B22621) having a 6.3 mm (1/4 inch) inlet and outlet. The emulsion passes if there is no significant separation after circulating10 minutes. #Test procedure identical with ASTM D244 except that distilled water shall be used in place of 2 percent sodium oleate solution. ASTM D244 Evaporation Test for percent of residue is modified by heating 50-gram sample to 149°C (300 °F) until foaming ceases, then cooling immediately and calculating results. In the Maltenes Distribution Ratio Test by ASTM Method D2006. PC = Polar Compounds S = Saturates A1 = First Acidaffin A2 = Second Acidaffins 702- 8 702.02
f.Asphalt Rejuvenating Agents. Asphalt rejuvenating agents (ARA) shall be composed of a petroleum resin-oil base uniformly emulsified with water and shall conform to the physical and chemical requirements of Table 702-8 or ASTM D4552. Table 702-8 Asphalt Rejuvenating Agent Property Test Method Requirement Viscosity, S.F., @ 25 °C (77 °F), s ASTM D244 20-40 *Residue, % min. ASTM D244 60-65 No #Miscibility Test ASTM D244 coagulation Sieve Test, % max. ASTM D244 0.10 Particle Charge Test ASTM D244 Positive ASTM D244 (Mod) Property Test Method Requirement Viscosity, 60 °C (140 °F), mm2/s ASTM D445 100 - 200 Flash Point, COC, °C, min. ASTM D92 196 Asphaltenes, % max. ASTM D2006 1.0 Maltenes Dist. PC+A1 ASTM D2006 0.3-0.6 Ratio S+A2 Saturated Hydrocarbons, % ASTM D2006 21-28 Table 702-8 Notes: *ASTM D244 Modified Evaporation Test for percent of residue is made by heating 50-gram sample to 149 °C (300 °F) until foaming ceases, then cooling immediately and calculating results. #Test procedure identical with ASTM D244 except that 0.02 Normal Calcium Chloride solution shall be used in place of distilled water. Test procedure identical with ASTM D244 except that distilled water shall be used in place of 2% sodium oleate solution. In the Maltenes Distribution Ratio Test by ASTM Method D4124: PC = Polar Compounds S = Saturates A1 = First Acidaffin A2 = Second Acidaffins For hot-in-place recycling ARA-1P is an acceptable alternative to ARA. ARA-1P shall meet the requirements below: Emulsified Polymer Modified Asphalt Rejuvenating Agent (ARA-1P) for use in hot-in-place recycling of bituminous pavements shall be modified with a minimum of 1.5 percent styrene- butadiene solution polymer. The finished product shall conform to the physical requirements listed in Table 702-9 below. 702- 9 Table 702-9 ARA 1P Test on Emulsion Property Test Method Min Max Viscosity, Saybolt-Furol @ 77 ºF, s ASTM D244 100 Residue @ 350 ºF, % ASTM D244 Mod 60 Sieve Test, % ASTM D244 0.10 Oil distillate, % ASTM D244 2.0 Test on Residue Property Test Method Min Max Penetration @ 39.2 ºF, 100g, 5s, dmm ASTM D5 Modified 150 250 Asphaltenes, % ASTM D4124 15
702.03 (unused)
702.04 Hot Poured Joint and Crack Sealant. Hot poured material for filling joints and
cracks shall conform to the requirements of ASTM D6690, Type II or Type IV. The concrete blocks used in the Bond Test shall be prepared per CP-L 4101. Sealant material shall be supplied pre-blended, pre-reacted, and prepackaged. If supplied in solid form the sealant material shall be cast in a plastic or other dissolvable liner having the capability of becoming part of the crack sealing liquid. The sealant shall be delivered in the manufacturer's original sealed container. Each container shall be legibly marked with the manufacturer's name, the trade name of the sealer, the manufacturer's batch or lot number, the application temperature range, the recommended application temperature, and the safe heating temperature. The sealant shall be listed in CDOT’s Approved Products List before use. 702- 10 703.00
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Source: 2025 Standard Specifications for Road and Bridge Construction, 2025 Edition. Pages 849–858 of 967. View official source ↗