纳米晶核剂在PC构件生产中的应用研究

Research on application of nanocrystalline nucleation agents in production of PC components

本文通过自制纳米早强晶核剂,研究了纳米早强晶核剂对水泥水化进程和混凝土早期的力学性能的影响,并探索了纳米晶核剂在PC构件实际生产中的应用。试验结果表明,纳米早强晶核剂可以显著促进水泥水化,缩短了水泥水化诱导期。掺入1%的纳米晶核剂,混凝土的早期强度得到显著提高,7 h抗压强度即可达到15 MPa,较空白提高150%。纳米晶核剂应用于PC构件生产,可明显缩短PC构件脱模时间,且对PC构件表观质量无负面影响。

In this paper,the influence of nano-early strength nucleation agent on cement hydration process and early mechanical properties of concrete was studied by self-made nano-early strength nucleation agent,and the application of nano-nucleation agent in the actual production of PC components was explored.The experimental results showed that the nano-early strong nucleation agent can significantly promote cement hydration and shorten the induction period of cement hydration.By adding 1%nanocrystalline nucleation agent into concrete,the early strength of concrete can be significantly improved,and the compressive strength of concrete can reach 15 MPa in 7 h,which is 150%higher than blank.The application of nanocrystalline nucleation agent in the production of PC components can obviously shorten the release time of PC components,and has no negative effect on the apparent quality of PC components.