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掺用萘系减水剂能使传统的混凝土材料得到新的变革,较为全面地改善混凝土的各种性能:如提高新拌混凝土的流动度、减少用水量提高强度、节省水泥用量、改善抗冻及抗渗性能、提高抗化学腐蚀能力等。为此,国内外都很重视对减水剂的研究工作。本文利用扫描电镜、红外光谱、X衍射分析、差热分析等手段,定量测定了结合水pH值变化、水化热变化,以及水泥石孔结构等。研究了掺入萘系减水剂以后,对普通硅酸盐水尼的水化速度、水化产物
Adding naphthalene series water reducer can make the traditional concrete materials get new changes, and improve the properties of concrete in a more comprehensive way. For example, improve the fluidity of fresh concrete, reduce the water consumption, increase the strength, save the amount of cement, and improve the resistance to frost. And impermeability, improve chemical resistance and so on. For this reason, both at home and abroad attach great importance to research work on water reducer. In this paper, SEM, IR, X-ray diffraction and differential thermal analysis were used to quantitatively determine the pH change, hydration heat change, and pore structure of cement stone. The hydration rate, hydration product of ordinary silicate water, Ni-based superplasticizer, was studied.