摘要
参考海洋贝壳生物矿化过程,开发研究一种水泥混凝土表面碳化诱导的外加剂,使水泥混凝土表面形成一层致密的CaCO_(3)晶体结构,阻碍水泥混凝土孔溶液pH值减少和内部进一步碳化,并借助氯离子渗透、XRD衍射图谱和FTIR光谱等手段,研究不同质量浓度的Mg(HCO_(3))_(2)和pH值等对硅酸盐水泥表面形成CaCO_(3)晶体微观结构的影响。
Referring to the Marine shell biological mineralization process,a kind of admixture induced by carbonation on the surface of cement concrete was developed and studied to form a layer of dense calcium carbonate crystal structure on the surface of cement concrete,which prevented the reduction of pH value of cement concrete hole solution and the further carbonation inside.By means of chloride ion penetration,XRD diffraction pattern and FTIR spectrum,the influence of different mass concentration of magnesium bicarbonate and pH value on the microstructure of calcium carbonate crystal formed on the surface of Portland cement was studied.
作者
刘海南
刘乐平
姚宏
LIU Hai-nan;LIU Le-ping;YAO Hong(College of Chemistry and Materials,Guangxi Key Laboratory of Natural Polymer Chemistry and Physics,Nanning Normal University,Guangxi Nanning 530001,China)
出处
《广州化工》
CAS
2022年第6期51-54,共4页
GuangZhou Chemical Industry
基金
广西科技引导创新项目(No:AC19050011)。
