氧化石墨烯对发泡水泥性能的增强效果研究  

Study on the Enhancement Effect of Graphene Oxide on the Properties of Foamed Cement

作　　者：王之宇 李春 李建涛 郭家林 焦宇航 Wang Zhiyu;Li Chun;Li Jiantao;Guo Jialin;Jiao Yuhang(College of Chemical Engineering and Modern Materials,Shangluo University,Shangluo,Shaanxi 726000;Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources,Shangluo,Shaanxi 726000;Research Centre of Grapheme Technology and Application,Shangluo,Shaanxi 726000)

机构地区：[1]商洛学院化学工程与现代材料学院,陕西商洛726000 [2]陕西省尾矿资源综合利用重点实验室,陕西商洛726000 [3]商洛市石墨烯技术与应用研究中心,陕西商洛726000

出　　处：《非金属矿》2022年第2期38-41,共4页Non-Metallic Mines

基　　金：陕西省教育厅重点科学研究计划(20JS041);商洛学院服务地方专项(17SKY-FWDF002)。

摘　　要：为解决尾矿发泡水泥应用瓶颈问题,提高尾矿利用率,通过添加氧化石墨烯影响发泡水泥微观结构,提高发泡水泥综合性能。对不同龄期样品的抗压强度、抗折强度、泡孔结构、微观形貌进行表征和分析,研究氧化石墨烯对发泡水泥水化反应的影响规律和作用机理。结果表明,掺入0.03%氧化石墨烯可促进水泥水化反应和尾矿火山灰反应,显著提高尾矿基发泡水泥综合性能,进而提高尾矿的利用率。To solve the bottleneck problem that restricts the promotion of tailings foamed cement and improve the utilization rate of tailings,the microstructure of foam cement was influenced by adding graphene oxide to improve the comprehensive performance of foam cement.The compressive strength,flexural strength,vesicular structure,and microscopic morphology of the samples at different stages were characterized and analyzed to study the effect law and mechanism of graphene oxide on the hydration reaction of foam cement.The results showed that the incorporation of 0.03%graphene oxide could promote the hydration reaction of cement and volcanic ash reaction of tailings,significantly improve the comprehensive performance of tailings-based foam cement,and then improve the utilization of tailings.

关 键 词：尾矿利用 发泡水泥 氧化石墨烯 水化反应 火山灰反应 

分 类 号：TU528[建筑科学—建筑技术科学]