硅酸盐通报2024，Vol.43Issue(11)：3968-3975,8.
石墨烯与羟基化石墨烯复掺对水泥砂浆性能的影响
Effect of Co-Addition of Graphene and Hydroxyl Graphene on Properties of Cement Mortar
摘要
Abstract
In this study,in order to solve problem that graphene(G)is easy to agglomerate in cement paste,the co-addition of hydroxyl graphene(HO-G)with better dispersion and graphene was adopted to improve the agglomeration phenomenon of graphene.The effect of co-addition of graphene and HO-G in different mass ratios on mechanical properties and durability of cement mortar was studied.The microscopic tests MIP,SEM and XRD were carried out on mortar specimens after 28 d of curing.The results show that the co-addition of graphene and HO-G in different mass ratios exhibits a more significant strengthening and toughening effect and improves the durability of cement mortar at the same time,but has little impact on the workability of cement mortar.When the mass ratio of co-addition of graphene and HO-G is 3∶7,the mechanical properties of cement mortar are the best.Compared with reference group,the 28 d flexural strength and compressive strength improve by 11.1%and 26.2%,respectively.The co-addition of graphene and HO-G in cement mortar refines the internal pores of mortar,and regulates the growth of cement hydration products,resulting in a more regular and dense internal structure of cement stone,which enhance the durability of cement mortar specimens.关键词
石墨烯/羟基化石墨烯/水泥砂浆/流动度/力学性能/耐久性Key words
graphene/hydroxyl graphene/cement mortar/fluidity/mechanical property/durability分类
建筑与水利引用本文复制引用
张逸舟,苏俊儒,郑城,王迎豪,蒲云东,张惠一,袁小亚..石墨烯与羟基化石墨烯复掺对水泥砂浆性能的影响[J].硅酸盐通报,2024,43(11):3968-3975,8.基金项目
国家自然科学基金项目(51402030) （51402030）
重庆市技术创新与应用发展专项重点项目(CSTB2022TIAD-KPX0031) （CSTB2022TIAD-KPX0031）
重庆市级引导区县科技发展专项资金(JSYY2023010) （JSYY2023010）
重庆市研究生导师团队建设项目(JDDSTD2022006) （JDDSTD2022006）
重庆交通大学校企合作项目(cqjt-2022-036) （cqjt-2022-036）
重庆诺奖二维材料研究院科技项目(C2DMI-RD-230616-01) （C2DMI-RD-230616-01）
