Details

Autor(en) / Beteiligte

• Menon, Rakenth R
• Luo, Jing
• Chen, Xiaobo
• Zhou, Hui
• Liu, Zhiyong
• Zhou, Guangwen
• Zhang, Ning
• Jin, Congrui

Titel

Screening of Fungi for Potential Application of Self-Healing Concrete

Ist Teil von

• Scientific reports, 2019-02, Vol.9 (1), p.2075-2075, Article 2075

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• Concrete is susceptible to cracking owing to drying shrinkage, freeze-thaw cycles, delayed ettringite formation, reinforcement corrosion, creep and fatigue, etc. Continuous inspection and maintenance of concrete infrastructure require onerous labor and high costs. If the damaging cracks can heal by themselves without any human interference or intervention, that could be of great attraction. In this study, a novel self-healing approach is investigated, in which fungi are applied to heal cracks in concrete by promoting calcium carbonate precipitation. The goal of this investigation is to discover the most appropriate species of fungi for the application of biogenic crack repair. Our results showed that, despite the significant pH increase owing to the leaching of calcium hydroxide from concrete, Aspergillus nidulans (MAD1445), a pH regulatory mutant, could grow on concrete plates and promote calcium carbonate precipitation.