▎ 摘　　要

NOVELTY - A graphene oxide (GO)/nano-ore powder co-dispersed carbon nanotube (CNT) modified nano-building material comprises 0.00005-0.05 part mass CNT powder or dispersion liquid containing 0.00005-0.05 part mass CNT, 0.00001-0.005 part mass GO powder or dispersion liquid containing 0.00001-0.001 part mass GO, 0-0.05 part mass nano ore powder, 0-0.02 part mass super plasticizer, 0.25-0.5 part mass water, 1 part mass cement and 0-0.01 part mass defoamer. USE - GO and nano-ore powder co-dispersed CNT modified nano-building materials used for manufacturing piezoresistive pressure sensor (all claimed) used in high-rise building frame shear beam, energy-consuming nodes, traffic bridges, pavement structure, high-strength/high-toughness joint and large structural health monitoring sensor. ADVANTAGE - The building material has good piezoresistive sensing performance, good mechanical toughness and strong compatibility with concrete base, due to the synergistic effect of the graphene oxide powder and ore powder. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of GO and nano-ore powder co-dispersed CNT modified nano-building material; and (2) preparation of pressure sensor.