Work

The impact of various calcium ion sources on the curing efficacy of MICP

Year: 2025

Type: article

Abstract: The impact of four distinct calcium sources on the microbial solidification of sand in the Kashi Desert, Xinjiang, was investigated. A wind tunnel test over a 60-day period revealed the cracking behavior of four different complex calcium nutrient solutions. By comparing the bearing capacity and the results from dry-wet cycling and freeze-thaw cycle tests, it was concluded that the sample treated with calcium gluconate exhibited superior sand fixation performance, whereas the sample treated with calcium acetate showed weaker sand fixation effects. The microstructure of the treated sand samples was analyzed using scanning electron microscopy (SEM) and X-ray diffraction (XRD). Elemental analysis was conducted via energy dispersive spectroscopy (EDS), and functional groups were identified through Fourier transform infrared spectroscopy (FTIR). These experimental findings hold significant implications for soil remediation, pollutant removal in soil, enhancement of soil fertility, and desert soil stabilization.

Source: Scientific Reports

DOI: 10.1038/s41598-025-94124-9

Authors: Huan Tao, Panpan Jiang, Jili Qu, Yuandong Huang

Institutions: University of Shanghai for Science and Technology, Kashi University

Language: English

Topic: Microbial Applications in Construction Materials

Subfield: Environmental Engineering

Field: Environmental Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,690

Funder: Science and Technology Department of Xinjiang Uygur Autonomous Region