氧化石墨烯对粉煤灰水泥的水化和力学性能的影响  

Influence of Graphene Oxide on Hydration and Mechanical Properties of Fly Ash-Cement

作　　者：徐朋辉[1] 李相国[1] 刘卓霖[1] 杨蓉[1] 笪俊伟 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《硅酸盐通报》2016年第12期4066-4069,共4页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(51378408;51572207)

摘　　要：本文通过改进Hummers法制备氧化石墨烯(GO),利用傅里叶红外光谱(FTIR)表征GO,利用X-射线衍射(XRD)、水化热和SEM研究GO对粉煤灰水泥的水化和力学性能的影响。结果表明:GO的掺入提高了粉煤灰水泥砂浆的抗折和抗压强度,GO提高了粉煤灰水泥水化速率和能改善粉煤灰水泥浆体的微观结构。Graphene oxide （GO） was prepared by the modified Hummers method and characterized by Fourier transform infrard （FTIR） spectra. The influence of graphene oxide on mechanical properties and microstructure of fly ash-cement systems was investigated by X-ray diffraction （XRD）, hydration heat and SEM. The results indicate the introduction of GO can increase the compressive and flexural strength of fly ash cement mortars. It is improve the microstructure suggested that GO can accelerate the hydration rate of fly ash cement and of cement pastes.

关 键 词：氧化石墨烯 粉煤灰水泥 强度 水化热 

分 类 号：TQ177.62[化学工程—硅酸盐工业]