硅酸盐通报2025，Vol.44Issue(8)：2771-2780,10.DOI:10.16552/j.cnki.issn1001-1625.2024.1623
液体纳米CaCO3对砂浆性能的影响及其作用机理
Effect and Mechanism of Liquid Nano-CaCO3 on Mortar Properties
摘要
Abstract
The research of nanomaterials in cementitious materials has been increasing in recent years,among which nano-CaCO3,as one of the most produced and used nanomaterials in many fields,has a promising application in cementitious materials.In order to investigate the effect of liquid nano-CaCO3(LNC)on mortar properties,different LNC content was selected to study its effects on mortar workability,mechanical properties,hydration behavior and microstructure.The results show that after adding LNC,the mortar fluidity shows a tendency of increasing and then decreasing with the increase of LNC content.Addition of LNC improves the flexural and compressive strength of the mortar,and the flexural and compressive strength at 3 d are increased by 14.29％and 32.51％,respectively,compared with the baseline group at 3.0％(mass fraction)LNC content.LNC improves the densification of cementitious materials through small size effect and nucleation effect,promotes the hydration reaction to proceed,and improves the pore structure.关键词
液体纳米CaCO3/工作性能/力学性能/水化行为/微观结构/晶核效应Key words
liquid nano-CaCO3/workability/mechanical property/hydration behavior/microstructure/nucleation effect分类
化学化工引用本文复制引用
孙久业,孙倩,王冬梅,杨仁和,李佳琪,荣辉,郭义兵,张鹏宇..液体纳米CaCO3对砂浆性能的影响及其作用机理[J].硅酸盐通报,2025,44(8):2771-2780,10.基金项目
天津市科技计划项目(24YFYSHZ00240) （24YFYSHZ00240）
