T/ZZXJX 239-2022 Technical Specification for Application of Prefabricated Repair Technology on Municipal Road Surface
T/ZZXJX 239-2022 Technical Specification for Application of Prefabricated Repair Technology on Municipal Road Surface
Basic Information
Scope
Main technical content: 1. Scope 2. Normative reference documents 3. Terms and definitions 4. Basic requirements 5. Materials 5.1 Cement concrete 5.2 Joint materials 5.3 Slab bottom grouting materials 5.4 Overlay materials 6. Design of assembly-type repair structures and constructions for municipal pavements 6.1 General requirements 6.2 Inspection of existing roads 6.3 Design of repair structures for ordinary areas 6.4 Design of structures and components 7. Construction of assembly-type repair structures for municipal pavements 7.1 General requirements 7.2 Construction process 7.3 Removal of existing roads 7.4 Treatment of base layers 7.5 Installation of slabs 7.6 Joint treatment 7.7 Slab bottom grouting 7.8 Paving of overlay materials 8. Quality inspection and methods 8.1 General requirements 8.2 Materials 8.3 Assembly-type pavement surface layers 8.4 Completion documents