| Research on Performance of Modified Emulsified Asphalt for Waterproof Adhesive Layer of Bridge Deck Pavement |
| Received:February 04, 2024 Revised:February 04, 2024 |
| DOI：10.12136/j.issn.1000-890X.2025.10.0764 |
| Key Words: bridge deck pavement；modified emulsified asphalt；waterproof adhesive layer；waterborne epoxy resin；pavement property |
| Author Name | Affiliation | E-mail | | XIA Xiaoming* | Institute of road and bridge enginering,Hunan communication polytechnic | dongzhjongxiang@126.com |
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| Abstract: |
| Waterborne epoxy resin，cationic styrene butadiene latex，curing agent and emulsifier were used to modify emulsified asphalt for the waterproof adhesive layer of the bridge deck pavement，in order to improve performance of the waterproof adhesive layer.The results showed that，the flexibilities and frost resistance of the samples with four contents of waterborne epoxy resin/cationic styrene butadiene latex（0%，3%，6%，9%）at low temperatures were good，and the corrosion resistance was excellent.The sample did not occurr water permeability phenomenon.At 160 ℃，the heat resistance of the samples with 6% and 9% contents of waterborne epoxy resin/cationic styrene butadiene latex was good.With the increase of the content of waterborne epoxy resin/cationic styrene butadiene latex，the distribution uniformity of waterborne epoxy resin in the sample was improved，and the adhesion increased.When the content of waterborne epoxy resin/cationic styrene butadiene latex was 9%，the distribution uniformity of epoxy resin was optimal.As content of waterborne epoxy resin/cationic styrene butadiene latex increased，the pull strengths，shear strengths and tensile strengths at break of the four samples increased.The pull strength，shear strength and tensile strength at break of the sample with 9% content of waterborne epoxy resin/cationic styrene butadiene latex were largest，which were 0.696，0.776 and 0.796 MPa，respectively. |
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