Section 702 — Asphalt Material and Additives

702.01Asphalt Binder. Conform to AASHTO M 226, AASHTO M 320, or AASHTO M 332.

702.02Emulsified Asphalt. Conform to AASHTO M 140 or AASHTO M 208.

(a)Polymer- modified cationic emulsified asphalt for chip seals. Conform to AASHTO M 316.

(b)Polymer- modified emulsified asphalt for micro surfacing. Conform to ISSA A143, except use AASHTO T 59, Section 7, Emulsified Asphalt Residue by Evaporation to determine percent residue.

(c)Penetrating emulsified asphalt for prime coat. Test according to AASHTO T 59, except as modified by Table 702-1. Table 702-1

Penetrating Emulsion for Prime Coat

Property Minimum Maximum

Requirements for Emulsion

Viscosity, saybolt furol at 122 °F, sec 15 150 Settlement, 24 hours, % − 1 Residue by evaporation, % 62 −

Requirements for Residue

Penetration, 77 °F, 100 g, 5 sec, AASHTO T 49 40 200

(d)Engineered emulsion. Conform to the following:

(1)Residue by distillation 60 minimum

(2)Sieve test 0.10 maximum

(3)Test on residue from distillation:

(a)Penetration, 77 °F, 100g, 5s percent Target from mix design ±25

(b)Ductility, 77 °F, 5 cm/min, cm 40 minimum

(e)Polymer- modified emulsified asphalt membrane. Conform to Table 702-2. Follow AASHTO T 59 test method except where noted. 784 Table 702-2 Polymer- Modified Emulsified Asphalt Membrane for

Ultrathin Bonded Wearing Course

Property Minimum Maximum

Requirements for E mulsion

Viscosity, saybolt furol at 77°F, sec 20 100 Storage stability, 24 -hour, %(1) - 1

Particle charge test positive -

Sieve test, %(2) - 0.05 Residue by evaporation, % 63 -

Requirements for Residue

Penetration, 77°F, 100 g, 5 sec AASHTO T 49 60 150 Elastic recovery, %, 50°F, 20 cm elongation, 5 cm/min, AASHTO T 301 58 - Ash content, AASHTO T 111 - 1

(1)After standing undisturbed for 24 hours, the surface shows no white, milky colored substance, but is a smooth homogeneous color throughout.

(2)Use distilled water in all wetting and washing operations rather than a sodium oleate solution (two percent).

702.03Hot- Applied Asphalt Aggregate -Filled Mastic. Conform to ASTM D8260.

702.04Asphalt Mastic. Conform to AASHTO M 243.

702.05Antistrip Additive. Conform to the following:

(a)Type 1. Provide commercially produced, heat stable liquid products that when added to an asphalt have the chemical and physical properties to prevent separation of the asphalt from aggregates.

(b)Type 2. Provide cement conforming to Subsection 701.01 or fly ash conforming to Subsection 701.03(a) .

(c)Type 3. Provide lime conforming to AASHTO M 303.