Nano-engineered Strong,Durable and Multifunctional/Smart Concretes

Micro/meso scale modification?can bring bigchanges in macroscale property.The addition ofnanofillers makes materials strong,durable andmultifunctional/smart.This paper?aims?at studyingmechanical property,durability,electrical proper-ty,electromagnetic property and piezoresistivity ofconcrete with nano silica(NS),carbon

Micro/meso scale modification？can bring big changes in macroscale property. The addition of nanofillers makes materials strong, durable and multifunctional/smart. This paper？aims？at studying mechanical property, durability, electrical proper- ty, electromagnetic property and piezoresistivity of concrete with nano silica （NS）, carbon nanotube （ CNT） , botryoid hybrid carbon material （BHCBM） , nano graphite platelet （NGP） andnano-tip material （spiky spherical nickel parti- cles）, respectively. Results demonstrate that the compressive and flexural strengths of concrete show significant increases with the increasing contents of NS. The addition of CNT obviously enhances the transport property？of concrete. The BHCBM endows theexeellent electrical conductivity with concrete.