T/CACE 0123-2024 Powdered coal ash for roadbed technical specifications
T/CACE 0123-2024 Powdered coal ash for roadbed technical specifications
Basic Information
Scope
Scope: This document specifies the technical specifications for the use of fly ash in highway subgrades, including: basic requirements, raw materials, design of fly ash subgrades, moisture adjustment of raw materials, transportation and storage, construction process of fly ash subgrades, curing, and quality inspection. This document is applicable to new and reconstruction subgrade projects of highways at all levels that primarily use fly ash as a raw material. It is not applicable to the roadbeds of expressways and first-class highways, or the upper roadbeds of second-class highways, as well as potential flood-submerged, long-term waterlogged, and water-soaked sections. Main technical contents: 1 Scope 2 Normative reference documents 3 Terms and definitions 4 Basic requirements 5 Raw materials 6 Design of fly ash subgrades 7 Moisture adjustment of raw materials, transportation, and storage 8 Construction process of fly ash subgrades 9 Curing 10 Quality inspection