工艺因素对掺工业废渣的烧结建材产品放射性的影响  

Effect of technology factors on the radiation of sintering products in building materials contained industrial waste slag

作　　者：陈益兰[1] 刘承伟[1] 唐婕[1] 刘守廷 罗平 莫达松 

机构地区：[1]广西大学,广西南宁530004 [2]广西分析测试研究中心,广西南宁530002

出　　处：《新型建筑材料》2009年第5期40-42,共3页New Building Materials

基　　金：广西自然科学基金资助项目(桂科自0640025)

摘　　要：研究工业废渣掺入量和烧结温度等因素对烧结建材产品放射性强度的影响,寻找降低建筑材料有害辐射的途径,探讨在安全的辐射范围内合理利用工业废渣生产建材产品。试验发现,经高温处理的粉煤灰,放射性比活度随温度的升高而增大;而掺入粉煤灰等工业废渣的烧结制品,其放射性比活度下降,内、外照射指数显著减小。适当的配料可以使烧结制品的放射性达到国家A类建材产品标准。在高温条件下,废渣中的部分氧化物熔融后与黏土矿物形成烧结体,废渣引入的放射性物质可被部分烧结体所吸收,烧结体也可将含放射性核素的粒子包裹起来,屏蔽作用使其放射性强度减小。The radioactive strength of building materials effected by factors, such as amount of industrial waste slag, and sintering temperature, was studied. The objective is to find the effective way to reduce the harmful radiation of building materials, and to discuss the rational utilization of industrial waste to produce the products of building materials in the range of safety radiation. The results indicate that the radioactivity of fly ash through high-temperature treatment increases with temperature rises;but the radioactivity and internal and external exposure index of sintered products of mixture of industrial waste reduced evidently. Proper ingredients can make sintering products to meet Class A building materials of the state-standard. At high-temperature, some molten oxides in the waste slag and clay minerals formed the sinter, radioactive materials introduced industrial waste can be partially absorbed by the sinter, radionuclide particles can be wrapped up by sinter, so that the shielding effect of sinter reduce the intensity of its radiation.

关 键 词：工艺因素 工业废渣 烧结 放射性 

分 类 号：TU502[建筑科学—建筑技术科学]