重钙粉对粉煤灰/煤渣轻质墙板氡污染的研究  

The Influence Research of Calcium Carbonate to Fly Ash/Coal Cinder Light Wallboard Radon Prevention

作　　者：武林[1] 邓跃全[1] 孙婷[1] 董梦伟 曲瑞雪[1] 崔宏星[2] 尚兵[2] 

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010 [2]中国疾病预防控制中心辐射防护与核安全医学所,北京100088

出　　处：《非金属矿》2015年第2期59-62,共4页Non-Metallic Mines

基　　金：国家自然科学基金(11375164)

摘　　要：建筑墙体材料是室内氡放射污染的主要来源之一,利用重钙粉对粉煤灰/煤渣的墙板氡污染进行防治研究,通过设计正交试验,对墙板氡浓度及抗折抗压强度进行分析。重钙粉的加入使墙板孔隙被填充,提高了墙板的密实性,氡释放量明显降低,而且对抗压抗折强度影响相对较小。重钙粉取材便利,成本低廉,应用于建筑粉煤灰/煤渣轻质墙板的氡污染防护,具有良好的应用前景。Building wall materials is one of the main sources of indoor radon radiation pollution. In this paper, calcium carbonate were used as radon prevention materials to prepare fly ash/coal cinder light wallboard, and its radon prevention performance and flexural and compressive strength were researched through orthogonal experiments. Fly ash/coal cinder light wallboard inner particles were coated with calcium carbonate forming compact structures, which made radon release amount decrease, and impact is small for flexural and compressive strength. Meanwhile, calcium carbonate materials were cheap and resource-rich, and would have good application prospects.

关 键 词：重钙粉 粉煤灰/煤渣 墙板 氡污染 防治 

分 类 号：X591[环境科学与工程—环境工程] TD985[矿业工程—选矿]