Research on the performance of different waterproof bonding layer materials for steel bridge decks
Huang Biao, Shi Jie, Chen Songqiang
TL;DR
This study compares the performance of three waterproof bonding materials for steel bridges, finding that MMA resin and epoxy perform better than solvent-based rubber asphalt.
Contribution
The study introduces a comparative analysis of bonding materials using surface energy theory and mechanical tests for steel bridge deck applications.
Findings
MMA resin has the highest surface energy parameters, followed by epoxy resin.
Epoxy resin achieves peak bond strength of 10.22 MPa after 60 hours of curing.
Epoxy and MMA resins outperform solvent-based rubber asphalt at high temperatures.
Abstract
This study investigates the performance of three commonly used waterproof bonding layer materials for steel bridge decks—solvent-based rubber asphalt, methyl methacrylate (MMA) resin, and epoxy resin—through surface energy theory, pull-off tests, and interlayer shear tests. The results indicate that MMA resin exhibits the highest surface energy parameters, followed by epoxy resin, while solvent-based rubber asphalt shows the lowest values. Pull-off tests reveal that epoxy resin achieves peak bond strength (10.22 MPa) after 60 h of curing at 25 °C, whereas solvent-based rubber asphalt performs best at an application rate of 0.4 kg/m2. Interlayer shear tests demonstrate that epoxy resin provides the highest shear strength, which increases with loading rate but decreases significantly at elevated temperatures. Additionally, temperature significantly affects bonding performance, with epoxy…
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Taxonomy
TopicsAsphalt Pavement Performance Evaluation · Innovative concrete reinforcement materials · Polymer Nanocomposites and Properties