AASHTO M320-16

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Standard Specification for

Performance-Graded

Asphalt Binder

AASHTO Designation: M 320-16

Release: Group 3 (August 2016)

American Association of State Highway and Transportation Officials

444 North Capitol Street N.W., Suite 249

Washington, D.C. 20001

Provided by IHS under license with AASHTO

Licensee=Universidad de Granada/5987475001

Not for Resale, 12/10/2016 10:20:53 MST

No reproduction or networking permitted without license from IHS

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TS-2b M 320-1 AASHTO

Standard Specification for

Performance-Graded Asphalt Binder

AASHTO Designation: M 320-16

Release: Group 3 (August 2016)

1. SCOPE

1.1. This specification covers asphalt binders graded by performance. Grading designations are

related to the average seven-day maximum pavement design temperature and the minimum

pavement design temperature. This specification contains Table 1 and Table 2. If no table is

specified, the default is Table 1.

1.2. Table 2 incorporates R 49 for determining the critical low cracking temperature using a

combination of T 313 and T 314 test procedures.

Note 1—For asphalt cements graded by viscosity at 60°C, see M 226.

Note 2—R 29 provides information for determining the performance grade of an asphalt binder.

Note 3—For specifying performance-graded asphalt binder using Multiple Stress Creep Recovery

(MSCR), see M 332.

2. REFERENCED DOCUMENTS

2.1. AASHTO Standards:

 M 226, Viscosity-Graded Asphalt Cement

 M 323, Superpave Volumetric Mix Design

 M 332, Performance-Graded Asphalt Binder Using Multiple Stress Creep Recovery (MSCR)

Test

 R 28, Accelerated Aging of Asphalt Binder Using a Pressurized Aging Vessel (PAV)

 R 29, Grading or Verifying the Performance Grade (PG) of an Asphalt Binder

 R 35, Superpave Volumetric Design for Asphalt Mixtures

 R 49, Determination of Low-Temperature Performance Grade (PG) of Asphalt Binders

 R 66, Sampling Asphalt Materials

 T 44, Solubility of Bituminous Materials

 T 48, Flash and Fire Points by Cleveland Open Cup

 T 240, Effect of Heat and Air on a Moving Film of Asphalt Binder (Rolling Thin-Film

Oven Test)

 T 313, Determining the Flexural Creep Stiffness of Asphalt Binder Using the Bending Beam

Rheometer (BBR)

 T 314, Determining the Fracture Properties of Asphalt Binder in Direct Tension (DT)

 T 315, Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear

Rheometer (DSR)

 T 316, Viscosity Determination of Asphalt Binder Using Rotational Viscometer

Provided by IHS under license with AASHTO

Licensee=Universidad de Granada/5987475001

Not for Resale, 12/10/2016 10:20:53 MST

No reproduction or networking permitted without license from IHS

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TS-2b M 320-2 AASHTO

2.2. ASTM Standards:

 D8, Standard Terminology Relating to Materials for Roads and Pavements

 D95, Standard Test Method for Water in Petroleum Products and Bituminous Materials by

Distillation

 D5546, Standard Test Method for Solubility of Asphalt Binders in Toluene by Centrifuge

3. TERMINOLOGY

3.1. Definitions:

3.1.1. Definitions for many terms common to asphalt binder are found in ASTM D8.

3.1.2. asphalt binder—an asphalt-based cement that is produced from petroleum residue either with or

without the addition of nonparticulate organic modifiers.

4. ORDERING INFORMATION

4.1. When ordering under this specification, include in the purchase order the performance grade (PG)

of asphalt binder required and the table used (e.g., (1) M 320, PG 52-16, Table 1, or (2) M 320,

PG 64-34, Table 2). If no table is specified, the default is Table 1.

4.2. Asphalt binder grades may be selected by following the procedures described in M 323 and R 35.

5. MATERIALS AND MANUFACTURE

5.1. Asphalt binder shall be prepared by the refining of crude petroleum by suitable methods, with or

without the addition of modifiers.

5.2. Modifiers may be any organic material of suitable manufacture that is used in virgin or

recycled condition and that is dissolved, dispersed, or reacted in asphalt binder to enhance

its performance.

5.3. The asphalt binder shall be homogeneous, free from water and deleterious materials, and shall not

foam when heated to 175°C.

5.4. The asphalt binder shall be at least 99.0 percent soluble as determined by T 44 or ASTM D5546.

5.5. This specification is not applicable for asphalt binders in which fibers or other discrete particles

are larger than 250 μm in size.

5.6. The grades of asphalt binder shall conform to the requirements given in Table 1 or Table 2.

6. SAMPLING

6.1. The material shall be sampled in accordance with R 66.

Provided by IHS under license with AASHTO

Licensee=Universidad de Granada/5987475001

Not for Resale, 12/10/2016 10:20:53 MST

No reproduction or networking permitted without license from IHS

--`,```,`,,,``,,,,`,``,`,``,`,`-`-`,,`,,`,`,,`---

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摘要：

AASHTO M320-16 是美国国家公路与运输协会（AASHTO）发布的《性能分级沥青结合料标准规范》的最新版本。该标准明确了基于路面使用温度范围的沥青结合料性能分级体系，涵盖了未改性及改性沥青在高温、中温及低温下的关键性能指标，包括动态剪切流变仪测试、弯曲梁流变仪测试及直接拉伸测试等要求。M320-16 替代了此前版本，旨在提高沥青路面的抗车辙、抗疲劳开裂及抗低温开裂能力，为道路设计、施工与材料验收提供统一的技术依据。无论是用于新建路面还是养护工程，该规范对确保沥青混合料在不同气候条件下的

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