Microbial mineralized modified recycled aggregate, and preparation method and use thereof

Abstract

Provided are a microbial mineralized modified recycled aggregate, and a preparation method and use thereof. A method for preparing the microbial mineralized modified recycled aggregate includes: subjecting a culture of microorganisms having both nitrification and denitrification capabilities and a culture of ureolytic bacteria to a first mixing to obtain a mixed culture, where a volume ratio at equal concentrations of the culture of the microorganisms having both nitrification and denitrification capabilities to the culture of the ureolytic bacteria in the mixed culture is in a range of 2:1 to 1:4; and subjecting the mixed culture, a recycled aggregate and a mineralizing solution to a second mixing, and subjecting a resulting system to microbial mineralization to obtain the microbial mineralized modified recycled aggregate, where the mineralizing solution includes urea and calcium formate.

Dependencies are inferred from the claim text.