聚合物对水化硅酸钙成核的影响
Influence of Polymers on the Nucleation of Calcium Silicate Hydrates
AI总结:
针对聚合物对水化硅酸钙(C-S-H)生长与成核影响认知不足的问题,本研究采用滴定结合离子选择性电极的方法,探究C-S-H沉淀成核前后阶段的过程,量化添加剂的影响,为定制化C-S-H设计及高性能胶凝材料研发提供支撑。
摘要:
水化硅酸钙(C-S-H)是水化水泥的主要组分,已知其决定了水泥的黏聚性。在这方面,它相当于砂浆或混凝土中其他固体组分的“黏合剂”,因此会强烈影响最终材料的力学性能。鉴于目前关于聚合物对C-S-H生长与成核影响的认知十分匮乏,本工作聚焦于研究C-S-H沉淀的成核前与成核后阶段发生的过程。借助滴定法结合离子选择性电极,可监测并量化添加剂对C-S-H形成的影响,从而为存在添加剂时的C-S-H形成过程提供新的见解。因此,本工作可被视为迈向便捷设计定制化C-S-H的一步,长期来看有望催生性能更优异的胶凝材料。
英文摘要:
Calcium silicate hydrates (C-S-H), the main components of hydrated cement, are known for being responsible of its cohesion. In this respect, they act as "glue" for the other solid components of mortar or concrete and thus strongly influence the mechanical properties of the outcoming material. Given the scarce knowledge about the influence of polymers on the growth and nucleation of C-S-H, this work focuses on the investigation of ongoing processes in the pre- and postnucleation stage of C-S-H precipitation. With the help of titration in combination with ion selective electrodes, effects of additives on the formation of C-S-H can be monitored and quantified resulting in new insights into the C-S-H formation in the presence of additives. Thus, this work can be regarded as a step towards a facilitated design of tailor-made C-S-H, which might result in superior cementitious materials on the long term.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。