T/DYZL 23-2020 Active Group standards

T/DYZL 23-2020 Road bituminous asphalt

Publish Date: 2020-11-08 Implement Date: 2020-11-08 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/DYZL 23-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Petroleum asphalt

ICS Name: Paraffin, asphalt materials, and other petroleum products

Publish Date: 2020-11-08

Implement Date: 2020-11-08

Scope

Scope: This standard specifies the terms and definitions of road petroleum asphalt, product classification (No. 70 A, B; No. 90 A), technical requirements and test methods, inspection rules, sampling, marking, packaging, transportation, and storage. This standard applies to asphalt pavement projects of all grades of new and reconstructed highways; Main technical content: This standard is based on the People's Republic of China industry standards—《Technical Specifications for Highway Asphalt Pavement Construction》(JTG F40--2004) and 《Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering》(JTG E20--2011), and takes into account the construction technical requirements and safety in various regions of China, combined with the process characteristics of the refining industry in Dongying City. It serves as the basis for the production, inspection, and acceptance of this product. Compared with Table 4.2.1-1 of 《Technical Specifications for Highway Asphalt Pavement Construction》(JTG F40--2004), in addition to editorial modifications, the main technical indicators have changed as follows: - The needle penetration index of No. 70 has been modified to 65–75 dmm; - The needle penetration index of No. 90 has been modified to 85–95 dmm; - The softening point index of No. 70A has been modified to 46.5–50°C; - The softening point index of No. 70B has been modified to 45–50°C; - The softening point index of No. 90 has been modified to 45.5–49°C; - The 60°C kinematic viscosity index of No. 70A has been modified to not less than 190 Pa·s; - The 60°C kinematic viscosity index of No. 70B has been added to not less than 160 Pa·s; - The 60°C kinematic viscosity index of No. 90A has been modified to not less than 170 Pa·s; - The flash point index of No. 70 has been modified to not less than 270°C; - The 10°C elongation index of No. 70 has been modified to not less than 30 cm; - The 10°C elongation index of No. 70B has been modified to not less tha