Comparin g to neat system with no nanosilica,results of rheological measurements showed that the biggest dynamic apparent viscosity,the biggest shear stress and thixotropy index of CSN were improved about 40times,about 40times and 67.36%,respectively.

• 流变性能测试表明:纳米SiO2加入体系后；体系的最大动态表观粘度、最大剪切应力和触变指数分别提高了约40倍、约40倍和67.；36%25;