Microwave Absorbing Property Of The Nanoparticle Concrete

Nano concrete samples with different sizes were prepared by incorporating particles of Nano ferric oxide, Nano silicon dioxide and Nano alumina with good dispersion. The compressive strength, flexural strength and radar reflected wave were tested. Mechanism of Nano concrete enhancement and mechanism of Nano concrete wave elimination were discussed. Result showed that Nano particles of iron oxide and alumina on the compressive strength of concrete had a different degree of resistance increase. The compressive strength of Nano alumina (NA) concrete was the highest, which was increased by 44.4% compared with that of ordinary concrete (PC). The flexural strength of Nano iron oxide (NF) concrete was the highest, which was 44.4% higher than that of ordinary concrete. As for the radar wave reflectivity, different Nano materials on the radar wave reflection effect were different. The full reflectivity of NSF compounded two kinds of Nano particles was lower than -8dB. With the increase of the content of Nano iron oxide particles, the reflectivity of radar wave decreases gradually. The minimum reflectivity of -16.7dB was achieved at 2.5GHz.