T/CECS G:K50-31-2022 Highway Engineering Block Gravel-Mechanical Sand Self-Compacting Concrete Application Technical Specification
T/CECS G:K50-31-2022 Highway Engineering Block Gravel-Mechanical Sand Self-Compacting Concrete Application Technical Specification
Basic Information
Scope
Scope: This specification applies to the design, construction, and inspection of large-scale concrete structures such as retaining walls, foundations, culvert walls, and bridge abutments in highway engineering using block-chipped stone-mechanical sand self-compacting concrete; Main technical content: The main content of this specification includes: 1. General provisions, 2. Terminology and symbols, 3. Raw materials, 4. Design of block-chipped stone-mechanical sand self-compacting concrete, 5. Construction of block-chipped stone-mechanical sand self-compacting concrete, 6. Quality inspection of block-chipped stone-mechanical sand self-compacting concrete, as well as Appendix A: Test method for the mud content on the surface of block-chipped stone, Appendix B: Test method for the bulk density and voidage of block-chipped stone, and Appendix C: Rubber extraction rod method.