JCI Annual Convention in KOBE

Presentation information

The 40th JCI Technical Conference

A.Material & Construction » Repair & Strengthening (material) / Natural healing & Self-healing

Repair & Strengthening (material) II

Wed. Jul 4, 2018 1:00 PM - 3:15 PM Room 3 (9F EX3-A)

座長:宮里心一(土木), 濱幸雄(建築)

[1253] APPLICABILITY OF BIO-BASED MATERIALS TO REPAIR WATER LEAKAGE OF CONCRETE

Prima Yane PUTRI1, Isao UJIKE2, Keiyu KAWAAI2 (1.Ehime University 2.愛媛大学)

Keywords:bio-based materials, Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transformed Infra-Red spectroscopy (FT-IR), repair leakage

This paper presents applicability of bio-based materials comprising dry yeast, glucose, and calcium acetate to repair water leakage of concrete. Water permeability test is conducted to evaluate sealing efficiency. FT-IR and FE-SEM analysis show the crystal polymorph observed in the precipitation is calcium carbonate. As the result of permeability tests carried out using leakage specimens, for crack width 0.2 mm, the liquid-based repair materials could decreasing water leakage to zero after 96 hours.