A comparative study of low-cost crude ureases extracted from multi-species of natural plant sources in enzyme-induced carbonate precipitation DOI
Lingxiao Liu,

Yaqing Gao,

Xinwen Cao

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114824 - 114824

Published: Nov. 14, 2024

Language: Английский

Biochar effects on bacterial communities in recycled concrete aggregates DOI
Jiaxin Liao,

Yi Huang,

Yijie Su

et al.

Frontiers of Environmental Science & Engineering, Journal Year: 2025, Volume and Issue: 19(4)

Published: Feb. 20, 2025

Language: Английский

Citations

1
Experimental study on construction application of red mud-based concrete pavement DOI Creative Commons

Yuefu Zhou,

Xilin Chen, Yuansheng Peng

et al.

Case Studies in Construction Materials, Journal Year: 2025, Volume and Issue: unknown, P. e04500 - e04500

Published: March 1, 2025

Language: Английский

Citations

0
Research of Enzyme-Induced Carbonate Precipitation on Strength Behavior of Reinforced Sand DOI Creative Commons
Jianye Wang, Xiaofeng Li, Liyun Peng

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(7), P. 3558 - 3558

Published: March 25, 2025

Stabilizing sandy soil with inadequate engineering properties is essential for constructing infrastructure systems in all regions, especially desertification-prone areas. Enzymatically Induced Carbonate Precipitation (EICP) offers an innovative solution, advantages over conventional reinforcement methods due to its low energy consumption and carbon emission. This emerging technique has proven effective enhancing strength, yet the effects of variables such as curing time cementation solution concentration, their micro-mechanistic implications on soil, remain understudied. study conducted a series unconfined compressive strength (UCS) tests microstructural analyses EICP-treated sand. The results showed that optimal EICP-reinforced sand seven days, being contingent upon density. maximum UCS value was observed at relative density 0.7 concentration 1 mol/L. Mechanistically, EICP strengthens integrity through calcium carbonate-mediated particle bridging, thereby boosting strength. Micro-CT imaging fractal dimension reveal precipitation process decreases both size connectivity pores, while simultaneously increasing surface heterogeneity overall toughness. research establishes foundational framework advancing applications stabilization engineering.

Language: Английский

Citations

0
Comparison of Crude Soybean Urease- and Pure Urease-Induced Carbonate Precipitation on Wind-Induced Erosion Resistance of Desert Sand DOI Open Access
Yanbo Chen, Yang Liu, Yufeng Gao

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(7), P. 2968 - 2968

Published: March 27, 2025

Enzyme-induced carbonate precipitation has been studied for wind erosion control in arid areas. A comparative study was conducted between the pure urease- and crude soybean urease-induced methods with same enzyme activity enhancing resistance of desert sand. Tube tests were carried out to monitor amount organic matter CaCO3 precipitates at different reaction times. Two groups sand specimens received several cycles treatment urease (SU) (PU), respectively, urea or without urea. The treated exposed wind-blown flow evaluate resistance. results showed that SU induced more under salting-out effect, which 9.88 times higher than from PU. Under one-cycle treatment, SU-treated contents exhibited lower mass. multiple-cycle high viscosity rapid resulted inhomogeneous distribution (more top). Once top eroded, below layer lost rapidly, causing mass PU-treated be 95% specimens.

Language: Английский

Citations

0
Probabilistic Assessment of Soil–Rock Mixture Slope Failure Considering Two‐Phase Rotated Anisotropy Random Fields DOI Open Access
Chuanxiang Qu, Yutong Liu, Haowen Guo

et al.

International Journal for Numerical and Analytical Methods in Geomechanics, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

ABSTRACT Soil–rock mixture (SRM) slopes consist of soils and rocks are widely distributed globally. In addition to heterogeneity discontinuity within SRM slopes, the inherent spatial variability can be observed in soil rock properties. However, properties layouts has not been well considered stability analysis slopes. Additionally, commonly show a rotated anisotropic fabric pattern, while such rarely accounted for slope analysis. this study, two‐phase anisotropy random field simulation method is proposed model these variations simultaneously. The approach then integrated with finite element (FEM) study impacts volume fraction bedding dip angle (i.e., anisotropy) on probability failure ( p f ) mode It found that considering only spatially varying underestimate by up 97% compared both variable layouts. increase significantly improves likelihood deep failure. greatly influences , yet remains dominant across different angles. Furthermore, more sensitive changes than angle.

Language: Английский

Citations

2
A comparative study of low-cost crude ureases extracted from multi-species of natural plant sources in enzyme-induced carbonate precipitation DOI
Lingxiao Liu,

Yaqing Gao,

Xinwen Cao

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114824 - 114824

Published: Nov. 14, 2024

Language: Английский

Citations

1