Microbial calcite, a bio-based smart nanomaterial in concrete remediation
By S. Bang, J. J. Lippert, U. Yerra, S. Mulukutla, V. Ramakrishnan. 2010
201 citations recorded by the source corpus.
The concept of developing a biosealant in concrete remediation is based on unique microbial metabolic processes. A common soil microorganism, Sporosarcina pasteurii, can induce CaCO3 precipitation in the surroundings in response to environmental cues such as high pH and available nutrients and minerals. A new biomolecule, microbial calcite is introduced as a smart nanomaterial for self-healing concrete – its effects on concrete performance were evaluated with regard to surface crack remediation and durability enhancement. For crack remediation, S. pasteurii cells immobilized on porous glass beads, SiranTM, were applied to cracks and tested for stiffness and compressive strengths. For durability tests, cement mortar beams prepared with bacteria were subjected to freeze–thaw cycles and examined for mean expansions and weight changes. Overall performance of the concrete was significantly enhanced by treatment with microbial calcite in simulated concrete cracks and cement mortar beams.
Subfields: Civil and Structural Engineering, Environmental Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/b2ba598ba600b0eeaca5ef3cdc24619fdad763c2
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Civil and Structural Engineering
In Environmental Engineering
In Materials Chemistry
Citations in the corpus
- Biogeochemical processes and geotechnical applications: progress, opportunities and challenges (2013, background): “…catchment facilities (Stabnikov et al., 2011; Chu et al., 2012), healing/stabilising cracks in concrete and masonry (Ramachandran et al., 2001; Bang et al., 2010; Yang et al., 2011), treating waste (Chu et al., 2009), immobilising heavy metals (Fujita et al., 2004, 2008, 2010; Hamdan et al.,…”