Exploring Fungal-Induced Carbonate Precipitation (FICP) for Healing Concrete Cracks [supporting dataset]
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2025-07-01
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Corporate Contributors:United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; Transportation Infrastructure Precast Innovation Center (TRANS-IPIC) Tier-1 University Transportation Center (UTC)
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Abstract:Cracking in cement-based materials significantly compromises their durability and long-term structural performance. This study investigates a bio-mediated self-healing strategy by incorporating bacterial and fungal agents into mortar samples. Artificial cracks were induced via split tensile testing, and healing behavior was evaluated through ultrasonic wave velocity measurements and water absorption tests over a 16-day curing period. Wave speed and water absorption measurements indicated signs of partial healing in samples treated with Sporosarcina pasteurii combined with either Aspergillus niger (ATCC 9029) or Neurospora crassa (FGSC 2489), compared to the untreated control group. Compressive strength tests at 28 days revealed that samples treated with Aspergillus niger or Neurospora crassa achieved higher strength than the control group before cracking was introduced. These preliminary findings suggest that microbial-based approaches may offer promising potential for enhancing crack management in cementitious materials.
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Content Notes:As this dataset is preserved in a repository outside U.S. DOT control, as allowed by the U.S. DOT’s Public Access Plan (https://doi.org/10.21949/1503647) Section 7.4.2 Data, the NTL staff has performed NO additional curation actions on this dataset. This dataset has been curated to CoreTrustSeal's curation level "C. Initial Curation." To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2024-08-28. If, in the future, you have trouble accessing this dataset at the host repository, please email NTLDigitalSubmissions@dot.gov describing your problem. NTL staff will do its best to assist you at that time.
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Main Document Checksum:urn:sha-512:f8040d5b8d9663ccc380788103b030ca428f2ac9d32455aecfbd6c46a2c1af32f4f3ab8e543da65de7fea2ca3d5735c5da1838ddf831990fafa8d74d0d5dc788
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Supporting Files
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