T/CACE 068-2022 Quality grading and "Pacer" evaluation requirements for recycled aggregate used in concrete and mortar
T/CACE 068-2022 Quality grading and "Pacer" evaluation requirements for recycled aggregate used in concrete and mortar
Basic Information
Scope
Scope: This document specifies the evaluation index system, evaluation methods, and grade classification for the quality of recycled aggregates used in concrete and mortar, as well as their enterprise standard levels. This document applies to the quality and enterprise standard levels of recycled fine aggregates and recycled coarse aggregates (collectively referred to as "recycled aggregates") processed from concrete, mortar, stones, bricks, and tiles in construction waste, which are used to prepare concrete and mortar. Relevant institutions can refer to this document when conducting quality grading, enterprise standard level evaluations, and "leader" evaluations, as well as related certifications. Enterprises can also refer to this document when formulating their own enterprise standards. Main technical contents: 1. Scope 2. Normative reference documents 3. Terms and definitions 4. Evaluation index system 5. Evaluation methods and grade classification Appendix A (normative) - Test method for water demand ratio of recycled fine aggregates Appendix B (normative) - Test method for water absorption of recycled coarse aggregates