湿法球磨改性固硫灰轻质隔墙条板的制备  

Preparation of Lightweight Panels for Partition Wall with Modified Circulating Fluidized Bed Combustion Fly Ash by Wet Milling

作　　者：孙婷[1] 邓跃全[1] 武林[1] 曲瑞雪 

机构地区：[1]西南科技大学材料科学与工程学院,绵阳621010 [2]四川金和新型建材有限公司,绵阳621000

出　　处：《混凝土与水泥制品》2015年第4期67-69,共3页China Concrete and Cement Products

基　　金：四川省科技支撑计划项目(2012GZ0086)

摘　　要：研究了湿法球磨固硫灰性能的变化,湿法球磨10min可使固硫灰平均粒径从5000nm下降到1800nm,硫酸钙完全转化为二水硫酸钙,能有效消除因体积膨胀引起后期安定性不良问题;探讨了固硫灰和水泥掺量对隔墙条板用水量、容重和强度的影响规律。结果表明,湿磨使固硫灰中硫酸钙溶解后重结晶成棒状、锥状晶须,利于与水泥水化产物紧密结合,形成轻质、高强材料,有较好应用前景。The performance changes of wet milling circulating fluidized bed combustion（CFBC） fly ash are studied.When wet milling time is 10 min, the particle mean size of the CFBC fly ash decreases from 5000 nm to 1800 nm, calcium sulphate could be totally changed into dehydrate calcium sulphate, which effectively gets rid of the problem of later poor stability caused by dilatability. The influence laws of contents of CFBC fly ash and cement on water consumption, bulk density and strength of light weight panels for partition wall are discussed. The results show that through wet milling, calcium sulphate in the CFBC fly ash dissolves, and then crystallizes into rod or cone whisker, which was closely integrated with cement hydrates, thus those become a light weight and high strength material. The technology has a good prospect.

关 键 词：固硫灰 湿法球磨 轻质隔墙条板 

分 类 号：TU528.72[建筑科学—建筑技术科学]