Enhancing crack self-healing properties of low-carbon LC3 cement using microbial induced calcite precipitation technique DOI Creative Commons

Wenzhu Wei,

Qinglong He,

Sen Pang

et al.

Frontiers in Materials, Journal Year: 2024, Volume and Issue: 11

Published: Nov. 15, 2024

Limestone Calcined Clay Cement (LC3) is a promising low-carbon alternative to traditional cement, but its reduced clinker content limits self-healing ability for microcracks, affecting durability. This study explores the application of Microbial Induced Calcite Precipitation (MICP) technique enhance crack capacity LC3-based materials. Bacillus pasteurii was utilized induce calcium carbonate precipitation improve LC3, thereby addressing limited durability due content. Experimental tests focused on optimizing growth conditions B. , evaluating compressive strength, capillary water absorption, and rates modified LC3 material. Results showed that under optimal (pH 9, inoculation volume 10%, incubation temperature 30°C, shaking speed 150 rpm), bacterial strain exhibited maximum metabolic activity. The Microbe-LC3 mortar demonstrated rate up 97% cracks narrower than 100 μm, significantly higher unmodified LC3. Additionally, strength enhanced by approximately 15% compared standard after 28 days. absorption reduced, indicating improved microbial-induced filling pores. confirms MICP technology viable approach performance contributing development more durable sustainable cementitious materials construction applications.

Language: Английский

Dual application of lotus stem in fabricating a bioreactor for the remediation of nitrate, plumbum, and carbamazepine in industrial wastewater DOI
Xinjie Wang, Xue Li, Junfeng Su

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 264, P. 120288 - 120288

Published: Nov. 6, 2024

Language: Английский

Citations

1
Multifunctional bacterium induced carbonate precipitation with low nitrogen effectively remediates cadmium polluted water DOI

Hewei Song,

Baoyu Wang,

Zhi‐Guo Yu

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 67, P. 106204 - 106204

Published: Oct. 7, 2024

Language: Английский

Citations

0
Enhancing crack self-healing properties of low-carbon LC3 cement using microbial induced calcite precipitation technique DOI Creative Commons

Wenzhu Wei,

Qinglong He,

Sen Pang

et al.

Frontiers in Materials, Journal Year: 2024, Volume and Issue: 11

Published: Nov. 15, 2024

Limestone Calcined Clay Cement (LC3) is a promising low-carbon alternative to traditional cement, but its reduced clinker content limits self-healing ability for microcracks, affecting durability. This study explores the application of Microbial Induced Calcite Precipitation (MICP) technique enhance crack capacity LC3-based materials. Bacillus pasteurii was utilized induce calcium carbonate precipitation improve LC3, thereby addressing limited durability due content. Experimental tests focused on optimizing growth conditions B. , evaluating compressive strength, capillary water absorption, and rates modified LC3 material. Results showed that under optimal (pH 9, inoculation volume 10%, incubation temperature 30°C, shaking speed 150 rpm), bacterial strain exhibited maximum metabolic activity. The Microbe-LC3 mortar demonstrated rate up 97% cracks narrower than 100 μm, significantly higher unmodified LC3. Additionally, strength enhanced by approximately 15% compared standard after 28 days. absorption reduced, indicating improved microbial-induced filling pores. confirms MICP technology viable approach performance contributing development more durable sustainable cementitious materials construction applications.

Language: Английский

Citations

0