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High-strength cement-based radioactive waste curing and fixing material
The invention relates to a high-strength cement-based radioactive waste curing and fixing material, which comprises the following raw materials in percentage by weight: 50-70% of a cementing material,30-50% of aggregate, 0.5-20% of metakaolin, 0.1-15% of microbeads, 0.05-0.3% of a retarder, 0.01-0.4% of an early strength agent and 0.1-1.5% of a water reducing agent. According to the invention, the initial fluidity is greater than 320 mm, and the fluidity is greater than 260 mm after 30 min; under the condition of normal temperature, the one-day compressive strength is greater than 35 MPa; the24-hour breaking strength is greater than 10 MPa, the 28-day compressive strength is greater than 110 MPa, the chlorine ion migration electric quantity is less than 1000C, and the long-term durability is good; And the material meets the performance indexes of EJ1186-2005 Characterization of radioactive waste forms and packages, is used for solidification and fixation of radioactive waste, and hasthe characteristics of high strength, good sealing performance, stable volume and good long-term durability.
本发明涉及一种高强水泥基放射性废物固化固定材料，其原料配比按重量计为：胶凝材料50～70％、骨料30～50％、偏高岭土0.5～20％、微珠0.1～15％，缓凝剂0.05～0.3％，早强剂0.01～0.4％，减水剂0.1～1.5％。本发明初始流动度大于320mm，30min后流动度大于260mm；常温条件下，1天抗压强度大于35MPa；24小时抗折强度大于10MPa，28天抗压强度大于110MPa，氯离子迁移电量小于1000C，长期耐久性好。符合EJ1186‑2005《放射性废物体和废物包的特性鉴定》性能指标，用于放射性废物的固化和固定，具有强度高、密封性好、体积稳定、长期耐久性好的特点。
High-strength cement-based radioactive waste curing and fixing material
The invention relates to a high-strength cement-based radioactive waste curing and fixing material, which comprises the following raw materials in percentage by weight: 50-70% of a cementing material,30-50% of aggregate, 0.5-20% of metakaolin, 0.1-15% of microbeads, 0.05-0.3% of a retarder, 0.01-0.4% of an early strength agent and 0.1-1.5% of a water reducing agent. According to the invention, the initial fluidity is greater than 320 mm, and the fluidity is greater than 260 mm after 30 min; under the condition of normal temperature, the one-day compressive strength is greater than 35 MPa; the24-hour breaking strength is greater than 10 MPa, the 28-day compressive strength is greater than 110 MPa, the chlorine ion migration electric quantity is less than 1000C, and the long-term durability is good; And the material meets the performance indexes of EJ1186-2005 Characterization of radioactive waste forms and packages, is used for solidification and fixation of radioactive waste, and hasthe characteristics of high strength, good sealing performance, stable volume and good long-term durability.
本发明涉及一种高强水泥基放射性废物固化固定材料，其原料配比按重量计为：胶凝材料50～70％、骨料30～50％、偏高岭土0.5～20％、微珠0.1～15％，缓凝剂0.05～0.3％，早强剂0.01～0.4％，减水剂0.1～1.5％。本发明初始流动度大于320mm，30min后流动度大于260mm；常温条件下，1天抗压强度大于35MPa；24小时抗折强度大于10MPa，28天抗压强度大于110MPa，氯离子迁移电量小于1000C，长期耐久性好。符合EJ1186‑2005《放射性废物体和废物包的特性鉴定》性能指标，用于放射性废物的固化和固定，具有强度高、密封性好、体积稳定、长期耐久性好的特点。
High-strength cement-based radioactive waste curing and fixing material
一种高强水泥基放射性废物固化固定材料
ZHAO LIXIN (author)
2020-09-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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