A Study of the Field Test Method for the Adhesive Performance Evaluation of Self-Adhesive Waterproofing Sheets

Author:

Park Jeong-Hwa1,Oh Kyu-Hwan2,Oh Sang-Keun3ORCID,Seo Hyun-Jae4,Kang Boo-Sung5

Affiliation:

1. Doctorial Course of Department of Smart City Engineering of Graduate School, Seoul National University of Science & Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea

2. Global Waterproofing Science and Technology Information Center, Gyeonggi-do, Dasanjoongang-ro 19-21, Namyangju-si 12248, Republic of Korea

3. Institute of Construction Technology, Seoul National University of Science & Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea

4. Posco A&C, Convensia-daero, Yeonsu-gu, Incheon 21998, Republic of Korea

5. School of Architecture, Seoul National University of Science & Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea

Abstract

In the field of waterproofing concrete structures, the use of self-adhesive waterproofing sheets has become a popular technique for ensuring long-term waterproofing performance. One important characteristic of such sheet materials is maintaining their stable adhesion strength over an extended period. Adhesion testing serves as a crucial method for assessing the long-term adhesion performance. However, a standardized test method, including equipment and criteria, for directly measuring the adhesion strength of waterproofing sheets applied to onsite concrete walls has not yet been established. Therefore, reliance on laboratory evaluation results has been the only option thus far. In this study, a field-applicable adhesion measurement device was developed in an effort to provide a quality control method for self-adhesive waterproofing sheets and to demonstrate the validity of a standardized evaluation method utilizing this device. The developed adhesion measurement device was designed based on the principle of the peel-out test in compliance with the requirements outlined KS F 4934, where the test specimen backing plate can slide into a 1:1 ratio at the same distance as the rise of the tension jig when the tension jig is raised at a 45° angle. By utilizing this device, the adhesion strength values of self-adhesive waterproofing materials applied in the field were compared with those obtained using a laboratory universal testing machine (Salem, MA, USA) (UTM) on the test specimens. Comparative analysis yielded that the standard deviation of the results varied for the tested waterproofing materials, and the overall standard deviation for the UTM measurements was 0.17, while it was 0.18 for the portable field measurement equipment. The results of the comparison indicated that when limited to the scope of the KS measurement method specifications, the possibility for a wider scope of usage can be made possible with more data and studies.

Funder

Korea Government

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Reference20 articles.

1. (2019). Application Method of Epoxy Resin-Based Waterproof and Anticorrosive Paint for Concrete Construction Standards (Standard No. KS F 9001).

2. (2017). Coating Film Waterproofing Material Application method Construction Standard (Standard No. KS F 9003).

3. (2019). Improved Asphalt Waterproof Sheet Construction Standard (Standard No. KS F 9006).

4. Effects of prolonged saline water exposure on the peel strength of polyurea/monel 400 interface;Chenwi;J. Adhes.,2021

5. Hedulian, S.I., Antoniuk, N.R., Shevchenko, T.I., and Vietokh, O.M. (2023). Modern Construction and Architecture, Odessa State Academy of Civil Engineering and Architecture.

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