- 851 - SECTION 1031 -- EMULSIFI ED ASPHALT (ANIONIC)
1031.01 Description
1.Emulsified asphalt (anionic) shall conform to the requirements below. All test methods are AASHTO methods. All AASHTO Testing Standards are as per the 2015 Edition.
1031.02 Material Characteristics
1.Emulsified asphalt (anionic) samples shall comply with test requirements when tested after being stor ed at room temperature of 73 +/- 4oF (23 +/- 2oC) for a period of up to 14 days after sampling.
2.HFE-150, HFE-300, and HFE-100 0 shall meet the requirements in Table 1031.01.
1031.02 Emulsified Asphalt (Anionic)
- 852 - Table 1031.01 HFE-150 - sand seal, chip seal, armor coat, especially with more graded or dusty materials. Min. Max. Tests on emulsion: Viscosity, Saybolt Furol, T 59, 50°C (122°F), sec. Settlement, % (note 1) 5 Sieve Test, % (note 1 ) 0.10 Residue by distillation, % 65 Tests on distillation residue: Penetration, dmm. 150 250 Solubility in Trichloroethylene, % 97.5 Float Test, 60°C (140°F), sec. 1200 HFE-300 – used for warm weather windrow mixes, pug mill mixes, base stabilization, and cold in-place recycling.= Tests on emulsion: Min. Max. Viscosity, Saybolt Furol, T 59, 50°C (122°F), sec. 50 400 Settlement, % (note 1) 5 Sieve Test, % (note 1) 0.10 Residue by distillation, % Oil Distillate, % Tests on distillation residue: 65 Penetration, dmm. 300 Solubility in Trichloroethylene, % 97.5 Float Test, 60°C (140°F), sec. 1200 HFE-1000 - winter windrow mix. Tests on emulsion: Min. Max. Viscosity, Saybolt Furol, T 59, 50°C (122°F), sec. 50 400 Residue by distillation, % Oil Distillate, % 65 Tests on distillation residue: Viscosity by Vacuum Capillary Viscometer, Poise (note 2) 20 90 Penetration, dmm. 300 Float Test, 60°C (140°F), sec. 1200 Note 1: See note “A” of AASHTO M 140. Note 2: Cannon-Manning type. Size selection determined by a flow time of closest to 60+ seconds. Emulsified Asphalt (Anionic) 1031.03 - 853 - 3. HFMS-2P shall meet the requ irements in Table 1031.02, and below. Table 1031.02 HFMS-2P - used for polymer modified armor coat or chip seal, especially with more graded or dusty materials. Min. Max. Tests on emulsion: Viscosity, Saybolt Furol, T 59, 50°C (122oF), sec. Storage Stability, percent (note 1 ) 1.0 Sieve Test, percent (note 1) Demulsibility, 50 ml 0.1N CaCl 2, percent 40 0.10 Residue by distillation, percent (note 2 ) 65 Oil Distillate, percent Tests on distillation residue: 3 Penetration, dmm. 100 200 Ductility, cm. 45 Float Test, 60°C, sec. Elastic Recovery, 25oC (77oF), percent 1200 Note 1: See note “A” of AASHTO M 140. Note 2: The distillation shall be taken to 350 +/-5oF, and held for 20 minutes, and otherwise in accordance with AASHTO T 59.
a.The solubility in trichloroethylene of the base stock asphalt binder shall be greater than 99.0%.
b.All base stock asphalt binder must be modified prior to emulsification with styrene-butadiene or styrene-butadiene styrene block copolymers. HFMS-2P shall contain no latex polymer.
4.HFMS-2L shall meet the requirements below.
a.HFMS-2L shall meet all specif ications of HFMS-2P with the following exceptions.
1.The test of Elastic Recovery is omitted. (2) The base stock asphalt binder shall be polymerized with a total minimum of 3.0% polymer solids by weight of the base stock asphalt binder. The polymers can be exclusively latex, or any combination of styrene-butadiene rubber latex, SB, SBS, SBR, or polychloroprene latex. The polymerization process shall be at l east partly latex, and the latex is only allowed to be added during a co-milling emulsification process.
5.RS-2 shall meet the s pecifications of AASHTO M 140.
6.SS-1 shall meet the spec ifications of AASHTO M 140.
7.SS-1H shall meet the s pecifications of AASHTO M 140.
1031.03 Acceptance Requirements
1.Emulsified asphalt (anionic) will be accepted as described in the Department’s Materials Sampling Guide . - 854 - SECTION 1032 -- EMULSIFI ED ASPHALT (CATIONIC)
1032.01 Description
1.Emulsified asphalt (cationic) shall conform to the requirements below. All test methods are AASHTO methods unless otherwise noted. All AASHTO Testing Standards are as per the 2015 Edition.
1032.02 Material Characteristics
1.Emulsified asphalt (cationic) samples shall comply with test requirements when tested after being stor ed at room temperature of 73 +/- 4oF (23 +/- 20C) for a period of up to 14 days after sampling.
2.CMS-1 shall comply with the test requirements in Table 1032.01. Table 1032.01 Tests on emulsion: Specification Viscosity, Saybolt Furol, T 59, 50oC (122oF), sec. 50 – 500 Settlement, percent, maximum (note 1) 5 Storage Stability, percen t, maximum (note 1) 1.0 Sieve Test, percent Retained, maximum (note 1) 0.5 Residue by Distillation, percent, minimum 65 Oil Distillate, percent, maximum 12 Tests on distillation residue: Penetration, dmm., minimum 300 Solubility in Trichloroethylene, percent, minimum 97.0 Viscosity, Saybolt Furol, 82oC (180oF), sec. (note 2) 200 - 600 Note 1: See note “b” of AASHTO M 208 Note 2: Kinematic to Saybolt Furol conversion as per ASTM D2161.
3.CSS-1 shall meet the s pecifications of AASHTO M 208.
4.CSS-1H shall meet the s pecifications of AASHTO M 208.
5.CRS-2 shall meet the s pecifications of AASHTO M 208.
6.CRS-2P shall meet the specific ations of AASHTO M 316 with the following changes. Table 1032.02 Test Specification Penetration, dmm. 100-150 Ductility, 25oC (77°F), cm., minimum 40 Elastic Recovery, percent, minimum 55 Storage Stability, perc ent See note “b” of AASHTO M 208 Sieve Test, percent See note “b” of AASHTO M 208 Force Ratio Test Not Required
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 885–887 of 1,048.