Computer · Building Materials
Which of the following mechanisms is primarily used to autonomously seal micro-cracks in bacterial self-healing concrete?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1External chemical patching via surface spray application
- 2Thermal expansion of embedded metallic aggregates
- 3Shape-memory polymers that contract upon moisture exposure
- 4Microcapsules containing bacterial spores and nutrients that precipitate calcium carbonate✓
Correct answer
Microcapsules containing bacterial spores and nutrients that precipitate calcium carbonate
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