| 几种水泥固化体中HTO浸出性研究 |
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| 引用本文： | 熊义富,敬文勇.几种水泥固化体中HTO浸出性研究[J].辐射防护,2003,23(2):102-106. |
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| 作者姓名： | 熊义富 敬文勇 |
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| 作者单位： | 中国工程物理研究院,四川绵阳,621907 |
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| 基金项目： | 中国工程物理研究院环保基金资助项目，项目编号HJ2 0 0 0 0 7 |
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| 摘 要： | 进行了HTO在沥青涂覆水泥固化体，苯乙烯单体聚合物浸渍水泥固化体和裸体水泥固化体中的长期浸出实验，给出了三种固化体的物理性能及长期浸出实验数据，结果表明，沥青涂覆，苯乙烯单体聚合物浸渍水泥固化体的物理性能比裸体水泥固化体有了较大程度的改善，其HTO浸出率和累积浸出分数都明显地优于裸体水泥固化体，累计浸出372d后，苯乙烯单体聚合物浸渍水泥固化体样品的浸出率和累积浸出分数均比裸体固化体样品的相应参数降低了2个数量级，苯乙烯单体聚合物浸渍水泥固化体的扩散系数De比裸体水泥固化体降低了3个数量级，说明聚合物浸渍固化体对固化体中氚的固定是非常有效的。
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| 关 键 词： | HTO 水泥固化 浸出性 氚 放射性废物 处理 苯乙烯单体聚合物 沥青涂覆 |
STUDY ON THE LEACHING OF HTO FROM SOLIDIFIED MATERIALS |
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| Xiong Yifu,Jing Wenyong.STUDY ON THE LEACHING OF HTO FROM SOLIDIFIED MATERIALS[J].Radiation Protection,2003,23(2):102-106. |
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| Authors: | Xiong Yifu Jing Wenyong |
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| Abstract: | The leaching experiments of HTO from three solidified forms were conducted, and the physical properties and leaching rates were measured. The results show that the physical properties of the bitumen coated concrete and concrete immersed in phenylethylene were much improved. The leaching rate and the accumulated leaching fraction of the bitumen coated concrete and concrete immersed in phenylethylene decreased significantly. The leaching rate and the accumulated leaching fraction decreased by 2 orders of magnitude after 372 days. The diffusion coefficient of HTO in the bitumen coated concrete and concrete immersed in phenylethylene decreased by 3 orders of magnitude. The experimental results indicate that the fixation of tritium in concrete immersed in phenylethylene is very effective.( |
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| Keywords: | HTO Cementation Leaching) |
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