| Title |
Analysis of Repeated Deformation Behavior and Interfacial Stress Transfer in Composite Waterproofing Sheets According to Material Composition |
| Authors |
김성년(Kim, Sung-Nyun) ; 김병일(Kim, Byoungil) |
| DOI |
https://doi.org/10.5659/JAIK.2025.41.12.319 |
| Keywords |
Waterproofing Method; Waterproof Sheet; Non-hardening Sealant; Repeated Behavior Test; Stress Transfer |
| Abstract |
This study analyzed the characteristics of waterproofing construction methods through repeated behavior tests, focusing on representative
waterproofing methods designed to prevent water leakage and enhance the longevity of buildings in terms of maintenance. The internal
structure of the waterproof sheet consisted of multiple layers, utilizing a compound or non-hardening seal applied by the manufacturer onto
the film surface. After affixing the waterproof sheet onto concrete segments artificially marked with cracks, a total of 10 strain gauges were
installed in areas with a high likelihood of leakage. The widths of the crack simulations were set at 2, 4, 6, 8, and 10 mm, with
experiments conducted continuously, with the width increasing by 2 mm after every 15 repeated actions. The stress generation and strain
response on the concrete adhesion surface varied depending on the method employed. Method A demonstrated a strong coupling between
concrete and waterproof sheets, indicating synchronized behavior. Conversely, methods B and C, featuring non-hardening seals with high
viscosity, exhibited significant stress absorption from the adhesive layer, consequently reducing transmission to the waterproof sheet surface. In
the case of method D, stress transfer was diminished due to separation from the waterproof sheet at the artificial crack area during repeated
behaviors. |