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Washington State University National Center for Transportation Infrastructure Durability & Life-Extension (TriDurLE)

Project

Develop an Innovative Self-healing Concrete Technology for Bridge Deck Life Extension

Team Members

Xiong (Bill) Yu
Professor and Interim Chair
Department of Civil and Environmental Engineering
Case Western Reserve University

Description

The proposed research aims to conduct pilot study to develop a self-healing concrete technology
that rapidly heal the cracks by use of microorganism fungi. Fungi is selected due to its capability
to rapidly cover exposed surfaces of concrete cracks with its hyphae fiber. The recovery of
mechanical properties will be achieved with fungi induced bio-mineralization process, which
glue the cracked surfaces together. Besides, the hydrophobic nature of the fungi fiber prevents
water ingression and therefore mitigates the corrosion due to deicing salt. Fast and autogenous
cracking healing of concrete will extend the service life of bridge decks and bring major cost and
labor savings compared with conventional treatment procedures.

More Details

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Xiong (Bill) Yu.

Dr. Xiong (Bill) Yu