Influence of Nano-SiO2 and Nano-CaCO3 on the Mechanical Properties of Concrete with Different Strength Grades
The flow ability, mechanical properties and microstructure of concrete with different strength grades affected by nano-SiO2 and nano-CaCO3 was studied. The experiment results showed that the strength of concrete at early age was increased by adding the nano-materials if the strength grade of concrete was not high. But the strength at the age of 28 days was not affected a lot by adding these nano-materials. On the other hand, it was not useful to the strength if the strength grade of concrete was high.
Guangfan Li, Yong Huang and Chaohe Chen
M. Z. Huang et al., "Influence of Nano-SiO2 and Nano-CaCO3 on the Mechanical Properties of Concrete with Different Strength Grades", Advanced Materials Research, Vols. 250-253, pp. 480-484, 2011