聚丙烯纤维对废树脂水泥固化体性能的影响

辐射防护 ›› 2017, Vol. 37 ›› Issue (1): 34-38.

聚丙烯纤维对废树脂水泥固化体性能的影响

付玉龙¹, 李玉香^1,2, 李继坪¹, 郑召¹

1.西南科技大学材料科学与工程学院,四川绵阳 621010;
2.四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,西南科技大学,四川绵阳 621010

收稿日期:2016-04-18 出版日期:2017-01-20 发布日期:2021-11-11
通讯作者: 李玉香。E-mail:liyuxiang@swust.edu.cn
作者简介:付玉龙(1990—),男,2013年毕业于河南理工大学材料学院材料科学与工程专业,现为西南科技大学材料学院材料科学与工程专业在读硕士研究生。E-mail:1205853439@qq.com

Effect of polypropylene fiber on performance of solidification matrix

Fu Yulong¹, Li Yuxiang^1,2, Li Jiping¹, Zheng Zhao¹

1. School of Materials Science and Engineering, Southwest University of Science and Technolgogy, Sichuan Mianyang 621010;
2. State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Sichuan Mianyang 621010

Received:2016-04-18 Online:2017-01-20 Published:2021-11-11

摘要/Abstract

摘要： 为了避免或降低放射性废树脂水泥固化体因吸水溶胀而开裂的可能性,在原配方的基础上添加了聚丙烯纤维。试验结果表明,纤维材料的掺入可有效限制固化体裂纹的增长、改善固化体的脆性,在一定程度上提高固化体的强度、抗浸泡性及抗冻融性。在水灰比0.35,湿树脂体积包容量40%,聚丙烯纤维体积掺量为0.2%时,固化体抗压强度可以达到20 MPa左右,浸出率与抗水性也均满足有关标准要求。

关键词: 放射性废树脂, 水泥固化, 聚丙烯纤维, 抗浸泡性

Abstract: Polypropylene fiber was added to the original recipe of cement solidification to avoid or reduce crack of radioactive spent resin matrix due to water-absorbing swelling. The test results showed that polypropylene fiber had a positive impact on inhibiting the growth of crack and improving the brittleness of the solidification matrix. The performances of strength,resistance to soaking, and resistance to freezing and thawing were also improved. A superior combination was obtained through an experiment in the following conditions: with w/c at 0.35, volume content of wet spent resins at 40%, and volume content of polypropylene fiber at 0.2%. Utilizing this formulation, the compressive strength of solidification matrix reached up to about 20 MPa, and its leaching rate and water resistance also satisfied related national standards.

Key words: radioactive spent resin, cement solidification, polypropylene fiber, resistance to soaking

中图分类号:

TL941+.111

付玉龙, 李玉香, 李继坪, 郑召. 聚丙烯纤维对废树脂水泥固化体性能的影响[J]. 辐射防护, 2017, 37(1): 34-38.

Fu Yulong, Li Yuxiang, Li Jiping, Zheng Zhao. Effect of polypropylene fiber on performance of solidification matrix[J]. RADIATION PROTECTION, 2017, 37(1): 34-38.

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