T/CCTAS 231-2025 Active Group standards

T/CCTAS 231-2025 Road design specifications for polyurethane mixed material

Publish Date: 2025-07-23 Implement Date: 2025-09-01 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/CCTAS 231-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Integrated Road Engineering

Publish Date: 2025-07-23

Implement Date: 2025-09-01

Scope

This standard is formulated to fill the gaps in the design standards for road-use polyurethane mixtures, standardize their application in road engineering, improve pavement performance, and promote the development of environmentally friendly road-building materials. The standard applies to the design of polyurethane pavement mixtures for highways and urban roads. The Marshall test method is used for mix design, and the key contents include: technical requirements for polyurethane adhesives, aggregates, and fillers; determination of the mineral aggregate gradation range and the optimum binder-aggregate ratio based on Marshall indicators such as voidage, stability, and volume stability; specification of the performance indicators of polyurethane mixtures for road use; and supporting test methods and curing systems for polyurethane adhesives and polyurethane mixtures.