Novel and simplified method of producing microbial calcite powder for clayey soil stabilization

Prongmanee, Nutthachai; Horpibulsuk, Suksun; Dulyasucharit, Ruethaithip; Noulmanee, Amorndech; Boueroy, Parichart; Chancharoonpong, Chuenjit

doi:10.1016/j.gete.2023.100480

Cited by 2 publications

(1 citation statement)

References 29 publications

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“…The experimental results showed that compared with the untreated samples, the cohesion intercept and friction angle of the treated tailings samples increased by about 19 kPa and 5°, respectively. Prongmanee et al [ 12 ] stabilized clayey soil by producing ammonium carbonate supernatant to generate calcite precipitation. The results showed that the soil stabilized with calcite had higher compressive strength than the untreated soil.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Wind Erosion Resistance of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation (MICP)

Qu,

Li,

et al. 2024

Materials

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Microbially induced calcite precipitation (MICP) is an emerging solidification method characterized by high economic efficiency, environmental friendliness, and durability. This study validated the reliability of the MICP sand solidification method by conducting a small-scale wind tunnel model test using aeolian sand solidified by MICP and analyzing the effects of wind velocity (7 m/s, 10 m/s, and 13 m/s), deflation angle (0°, 15°, 30°, and 45°), wind erosion cycle (1, 3, and 5), and other related factors on the mass loss rate of solidified aeolian sand. The microstructure of aeolian sand was constructed by performing mesoscopic and microscopic testing based on X-ray diffraction analysis (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). According to the test results, the mass loss rate of solidified aeolian sand gradually increases with the increase in wind velocity, deflation angle, and wind erosion cycle. When the wind velocity was 13 m/s, the mass loss rate of the aeolian sand was only 63.6%, indicating that aeolian sand has excellent wind erosion resistance. CaCO3 crystals generated by MICP were mostly distributed on sand particle surfaces, in sand particle pores, and between sand particles to realize the covering, filling, and cementing effects.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on the Wind Erosion Resistance of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation (MICP)

Qu,

Li,

et al. 2024

Materials

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Research Progress in Soil Solidified by Microbially Induced Carbonate Precipitation (MICP)

张

2024

HJCE

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Novel and simplified method of producing microbial calcite powder for clayey soil stabilization

Cited by 2 publications

References 29 publications

Experimental Study on the Wind Erosion Resistance of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation (MICP)

Experimental Study on the Wind Erosion Resistance of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation (MICP)

Research Progress in Soil Solidified by Microbially Induced Carbonate Precipitation (MICP)

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