摘要
以磷石膏为主要原料,对钢渣、Fe_(2)O_(3)粉、沸石和重晶石4种材料复配,进行超细加工,加入胶粉制得一种复合自吸收磷石膏防氡防辐射建材。结果表明,4种材料的复配对磷石膏氡防护的最佳配比为:5%、8%、3%、5%,其氡的防护率为80.16%;对磷石膏放射性防护的最佳配比为:5%、8%、7%、7%,内外照射指数的分别降低为87.58%和65.40%;超细加工对磷石膏氡防护提高不明显,放射性防护有所减弱;加入0.2%胶粉后,对磷石膏氡的防护提高至86.56%,对放射性防护无明显变化。本试验解决了磷石膏氡和放射性污染问题,有较好的应用前景。
A anti-radon and radiation building material which can self-absorption by compound method based on phosphogypsum was prepared by compounding steel slag,Fe_(2)O_(3) powder,zeolite and barite,carrying out ultra-fine processing and adding rubber powder.The optimum ratio of the four protective materials for radon protection of phosphogypsum is 5%,8%,3%,5%,and the radon protection rate is 80.16%;the optimum ratio of radioactive protection of phosphogypsum is 5%,8%,7%,7%,and the internal and external exposure index is reduced to 88.02%and 65.49%respectively;the ultrafine processing is slightly improved for radon protection of phosphogypsum,and the radiation protection is weakened,which is of little significance;after adding 0.2%rubber powder,the radon protection of phosphogypsum was increased to 86.56%,and there is no obvious change in radiation protection.This method solves the problem of phosphogypsum radon and radioactive pollution,and has good application prospects.
作者
吴昊
邓跃全
杨贤
高蒲
刘巍平
杨威
吴婷
贾彬
张辉
Wu Hao;Deng Yuequan;Yang Xian;Gao Pu;Liu Weiping;Yang Wei;Wu Ting;Jia Bin;Zhang Hui(School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang,Sichuan 621010;2203 Institute of Nuclear Industry,Xianyang,Shaanxi 712000;International Cooperative Laboratory of Applied Research on Micro and Nano Particles,Mianyang,Sichuan 621010)
出处
《非金属矿》
CSCD
北大核心
2021年第3期9-13,共5页
Non-Metallic Mines
基金
国家核能开发重点项目(20191341)。
关键词
磷石膏
氡
放射性
自吸收
防护
phosphogypsum
radon
radiation
self-absorption
protection
