竹炭对粉煤灰陶瓷砖结构及性能的影响  

Effect of Bamboo Charcoal on Microstructure and Performance of Fly Ash Ceramic Tile

作　　者：杨辉[1] 李文彦[1] 郭兴忠[1] 涂志龙 

机构地区：[1]浙江大学材料科学与工程学系,浙江杭州310027 [2]浙江碧岩环保材料有限公司,浙江遂昌323300

出　　处：《建筑材料学报》2011年第5期703-707,共5页Journal of Building Materials

基　　金：科技型中小企业技术创新基金资助项目(11C26213301683)

摘　　要：采用粉煤灰、黄金尾矿为主要原料,添加不同掺量的竹炭,通过干压成型-高温烧成法制得粉煤灰陶瓷砖,分析了竹炭掺量及烧成温度对粉煤灰陶瓷砖的物化性能、物相组成及显微结构的影响规律.结果表明:以粉煤灰、黄金尾矿和竹炭可以制备出显气孔率和强度较高、吸水率较低的粉煤灰陶瓷砖,其物相主要为石英相与莫来石相;在m(竹炭):m(粉煤灰)为5:70,烧成温度为1 250℃时,陶瓷砖具有较好的综合性能,其破坏强度可达600.1 N,吸水率为8.29%,显气孔率为16.02%,达到GB/T 4100—2006附录K中对BⅡ类炻质砖的性能要求,且该材料的比表面积为11.1 m^2/g,具备一定的吸附功能,有望成为一种新型的内墙功能装饰材料.With fly ash and gold tailings as raw materials, bamboo charcoal as additive, fly ash ceramic tiles were prepared by drying pressing-firing method, and the effect of bamboo charcoal＇s addition and firing temperature on the properties, compositions and microstructure of the ceramic tiles were studied. The results show that the fly ash ceramic tile can be prepared with high mechanical strength and high porosity, and it has porous structure with quartz and mullite as main phases. When m（bamboo charcoal） ：m（fly ash） is 5 ： 70 and the firing temperature is 1 250℃, the ceramic tile has excellent comprehensive proper- ties, its fracture strength is 600.1 N, water absorption is 8.29%, and apparent porosity is 16.02%. The comprehensive properties can meet the requirement set forth in GB/T 4100--2006 BⅡ , and it also possesses specific surface area of 11.1 m2/g. It is indicated that the material is expected to be a new functional indoor decoration material.

关 键 词：粉煤灰 陶瓷砖 竹炭 结构与性能 

分 类 号：TQ174[化学工程—陶瓷工业]