Durability evaluation of elastic putty for repairing concrete cracks through a dynamic outdoor exposure test

K. Motohashi, K. Kitao

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

U-shaped cutting along cracks and filling with suitable elastic sealing material is one of the typical repairing methods for concrete cracks. Generally, elastic sealant or elastic putty is used for this purpose. Elastic putties have been used when the crack movement is relatively small because of their some advantages. One of the points to be clarified for these elastic putties is how long they can keep their rubber-like elasticity and follow the crack movement.

This paper shows the results of a dynamic outdoor exposure test conducted for 3 years by using the exposure racks specially designed for introducing dynamic movement. The results were compared with those of the acceleration test which had been reported earlier [1]. The results in both tests showed that durability level depended on the type of polymer. In addition, some other design factors which affect the durability were confirmed in the outdoor exposure test.

Original languageEnglish
Title of host publicationDurability of Building Materials and Components 7
PublisherTaylor and Francis
Pages1071-1080
Number of pages10
ISBN (Print)9781315025018
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes

Keywords

  • Crackmovement
  • Crackrepair
  • Dynamicoutdoor exposure
  • Elasticputty
  • Epoxyputty
  • Sealant
  • Siliconeputty

ASJC Scopus subject areas

  • Engineering(all)
  • Arts and Humanities(all)

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  • Cite this

    Motohashi, K., & Kitao, K. (2014). Durability evaluation of elastic putty for repairing concrete cracks through a dynamic outdoor exposure test. In Durability of Building Materials and Components 7 (pp. 1071-1080). Taylor and Francis. https://doi.org/10.4324/9781315025018