| Title |
A Fundamental Study on the Improvement of Tensile Performance of Water-based Rubber Asphalt Membranes for Application on Bridge Decks |
| Authors |
허능회(Heo, Neung-Hoe) ; 안기원(An, Ki-Won) ; 김병일(Kim, Byoung-Il) |
| DOI |
https://doi.org/10.5659/JAIK.2025.41.12.327 |
| Keywords |
Water-Soluble Rubber Asphalt; Waterproofing Coating; Bridge; Tensile Performance |
| Abstract |
This study aims to enhance the tensile performance of a water-based rubber asphalt membrane, originally designed for building structures, to
make it suitable for waterproofing bridge decks. The characteristics and quality standards for this membrane in both building and civil
engineering applications were examined. Various additives, including silica, polypropylene (PP) fiber, styrene-butadiene-styrene (SBS), and
ethylene-vinyl acetate (EVA), were tested individually and in combinations to assess their effects on material properties. Test results showed
that tensile strength needed to increase from 0.35 N/mm² to at least 1.5 N/mm², an improvement of about 430 percent, while maintaining
elongation above 100 percent to meet quality standards. The best-performing formulations included silica 1.5 percent, PP fiber 0.3 percent,
SBS 1.0 percent, EVA 1.0 percent, or silica 1.5 percent, PP fiber 0.6 percent, SBS 1.0 percent, EVA 2.0 percent. These mixtures met quality
requirements and demonstrated strong mechanical performance. The findings offer a valuable reference for developing and applying
waterproofing membranes for bridge decks in civil engineering. |