T/JSJTQX 69-2025 Active Group standards

T/JSJTQX 69-2025 Technical Specifications for the Construction of Grouting Treatment for Pavement Cracks with High-Strength Polymer Composite Materials

T/JSJTQX 69-2025 Road Crack Repair Techniques Specification for Composite High-Strength Polymer Grouting

Publish Date: 2025-03-26 Implement Date: 2025-04-01 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/JSJTQX 69-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Integrated Road Engineering

Publish Date: 2025-03-26

Implement Date: 2025-04-01

Scope

Scope: This document specifies the basic requirements for the construction of composite high-strength polymer grouting treatment for pavement cracks, including pavement defect investigation, composite high-strength polymer grouting materials, grouting equipment, grouting construction, quality control and acceptance. This document is applicable to the construction and acceptance of composite polymer grouting treatment for pavement maintenance projects of all-grade highways. Main technical content: The "Technical Specifications for the Construction of Composite High-Strength Polymer Grouting Treatment for Pavement Cracks" (T/JSJTQX 69—2025) stipulates various requirements for the construction of composite high-strength polymer grouting treatment for pavement cracks, and is applicable to pavement maintenance projects of all-grade highways. The main contents are as follows: 1. Terms and definitions: Clarify the meanings of terms such as composite high-strength polymer, fullness after grouting, intact rate of core samples after grouting, and recovery rate of compressive strength after grouting. 2. Basic requirements: Before construction, it is necessary to investigate the thickness of the pavement structure layer and other conditions. A plan should be formulated based on the results of ground-penetrating radar (GPR). Measuring instruments should be checked or calibrated, and the quality certificates of materials entering the site should be inspected. 3. Defect investigation: Follow relevant norms, use two-dimensional GPR to detect, and investigate a variety of pavement defects. Focus on verifying cracks and recording detailed information. When the cause is unknown, drill and extract core samples for verification. 4. Grouting materials: The materials should be stable, durable, and non-polluting. Specify the frequency of sampling, technical performance, and component ratios, and stipulate storage and transportation requirements. 5. Grouting equipment: It is recommended to