使用水性环氧烯酸树脂改性乳化青 (WEREA) 制造高性能青混合物
Dongwei Chen1, Hao Wu1, Xiaobao Chen1
1School of Civil Engineering, Central South University, 22 South Shaoshan Rd., Changsha 410075, China.
Polymers
|October 16, 2024
概括
水性环氧烯酸树脂 (WER) 在冷混合青 (CMA) 中显著提高了乳化青的性能. 这种修改改改进了耐磨性,高温稳定性和更持久的青路面的整体耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 聚合物化学 聚合物化学
背景情况:
- 冷混合青 (CMA) 粘合剂通常面临强度和低温性能方面的限制.
- 水性环氧树脂 (WER) 在增强青粘合剂性能方面表现有前途.
研究的目的:
- 开发和评估水性环氧烯酸树脂乳化青 (WEREA),以提高CMA性能.
- 为了确定WEREA修改的青混合物的最佳混合比例.
主要方法:
- 风湿学试验 (复杂切割模量,相角) 和直接拉力试验被用于评估WER修改.
- 修改过的马歇尔设计方法用于混合比例优化.
- 多重应力爬行恢复 (MSCR) 测试评估了弹性和硬度.
主要成果:
- 维雷亚表现出增强的复杂剪切模量和减少的相角,表明硬度有所改善.
- 直接拉力强度随着WER含量增加而显著增加.
- MSCR测试显示,WER过渡使乳化青从粘弹性变为弹性,改善了变形和抗.
- 确定了最佳的WEREA混合物比例,与热混合青相比,产生更高的稳定性和更低的流量值.
结论:
- 水性环氧烯酸树脂 (WER) 有效地修改了乳化青,显著提高了其机械性能和耐用性.
- 开发的WEREA为冷混合青提供了一个有希望的替代粘合剂,有可能改善路面的寿命.
- 威瑞亚显示出在冷回收青混合物和表面应用中使用的潜力.
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