RESEARCH ON THE MECHANICAL PROPERTIES OF NANOMATERIAL-BF MORTAR
The effectiveness of single addition of nano SiO2 and nano CaCO3,as well as composite addition of nano SiO2 BF and nano CaCO3 BF,on the compressive and flexural strength of cement mortar were studied,with a focus on the reinforcement of basalt fiber (BF) and modification of nanomaterials. The gain effectiveness of the two nanoma-terials on the mortar are compared. The research results indicate that the addition of nano SiO2 and nano CaCO3 im-proves the mechanical properties of mortar,with an optimal dosage of 2％. For composite nanomaterials and fibers,adding 2％ nano SiO2 or nano CaCO3 to 0.2％ BF mortar results in significantly higher compressive and flexural strength than that of plain mortar,which is superior to single BF and nanomaterial mortar. Secondly,at the same dos-age,nano SiO2 has a better gain effectiveness on mortar compared to nano CaCO3.
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