具氨氮吸附效能的沸石多孔混凝土配合比优化  

Optimization of zeolite porous concrete proportion with ammonia nitrogen adsorption efficiency

作　　者：岳衡[1,2] 虢清伟[2] 王劲松[1] 龙焰[3] 张政科[4] 刘超[1] 

机构地区：[1]南华大学城市建设学院,河南衡阳421001 [2]环境保护部华南环境科学研究所,广东广州510655 [3]暨南大学环境工程系,广东广州510632 [4]湖南农业大学环境工程系,湖南长沙410128

出　　处：《混凝土》2012年第11期139-141,共3页Concrete

摘　　要：为开发具氨氮吸附效能的沸石多孔混凝土功能材料,采用正交试验、综合表观验证分析等方法对其最优配合比进行研究。结果表明:各因素对孔隙率的影响大小顺序为骨料粒径>灰骨比>水灰比>减水剂掺量,骨料粒径对孔隙率的影响显著,灰骨比次之,水灰比与减水剂掺量影响较小;对氨氮吸附量的影响顺序是灰骨比>水灰比>骨料粒径>减水剂掺量,灰骨比对吸附量影响显著,水灰比次之,粒径与减水剂掺量影响较小。通过表观分析验证性试验结果得出最优骨料粒径是20～30 mm,水、灰、骨料的最优的配合比是0.28∶1∶8。Adopted orthogonal test analysis, the intuitive comprehensive analysis and other methods to verify zeolite porous concrete optimal ratio, the purpose was to develop the zeolite porous concrete proportion with ammonia nitrogen adsorption efficiency.The results showed that the in- fluence factors of the porosity size order was aggregate size〉cement-aggregate ratio〉water cement ratio〉water reducing agent, aggregate size produces significant effect to porosity, cement-aggregate ratio was the second smallest, and water cement ratio and water reducing agent content was less effect.At the same time, the influence factors of the ammonia nitrogen adsorption capacity size order was cement-aggregate ratio〉water cement ratio〉aggregate size〉water reducing agent, cement-aggregate ratio produces significant effect to adsorption capacity, water cement ratio had some impact, particle size and water reducing agent content was less effect.In addition, the intuitive verification test analysis results indicated that the optimum particle size was 20 - 30 mm,the optimal scheme ratio of water, cement and aggregate was 0.28：1：8.

关 键 词：沸石多孔混凝土 正交试验 配合比优化 吸附 

分 类 号：TU528.062[建筑科学—建筑技术科学]