Articles
  • Self-healing phenomena using PVA coated granules for sustainable construction

  • Jun Hyeong Kima, Yong-Soo Leeb, Abdul Qudoosa, Hong Gi Kima, Tae Ho Ahnc and Jae-Suk Ryoua,*

  • aDepartment of Civil & Environmental Engineering of Civil Engineering, Hanyang University; 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
    bKorea Concrete Testing Laboratory; 35 Ansantekom-gil, Sangnok-gu, Ansan 15523, Korea
    cInternational Sustainable Engineering Materials (ISEM) Center, Ceramic Materials Institute & Division of Advanced Materials Science Engineering, Hanyang University; 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea

Abstract

Concrete structures are susceptible to cracking which exacerbate the durability of these structures. For this purpose, self-healing phenomena has been introduced in the past few decades. In order to apply the granulated healing material (Granule) with PVA film coating in the concrete, cracks, which were generated by drying shrinkage, were introduced to plate-shaped concrete specimens incorporating Granule with PVA film coating. Subsequently, healing efficiency was verified by test about crack, which was subjected to the water supply. As a result, it is verified that the method by using water-soluble PVA film coating for maintaining self-healing efficiency of the granulated healing material will be the original approach for sustainable concrete with self-healing capability compared with the previous method.


Keywords: Granulated healing material, Drying shrinkage, Water supply, Water-soluble PVA film

This Article

  • 2019; 20(S1): 70-76

    Published on Jul 20, 2019

  • Received on Dec 9, 2018
  • Revised on Jan 15, 2019
  • Accepted on Jan 15, 2019

Correspondence to

  • Jae-Suk Ryou

  • Department of Civil & Environmental Engineering of Civil Engineering, Hanyang University; 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
    Tel : +82-2-2220-4323

  • E-mail: jsryou@hanyang.ac.kr