钨酸锆填料与沥青的粘附与水损害特性

发布时间：2018-05-18 06:46

本文选题：沥青胶浆 + 钨酸锆　；参考：《哈尔滨工业大学学报》2017年03期

【摘要】：为分析亲水性钨酸锆材料作为沥青混合料填料的合理性,基于表面能和粘附功理论,对不同填料和沥青的表面能参数及粘附功进行测试和计算,通过设计水侵蚀试验,研究不同填料组成的沥青胶浆在水损害条件下的自由能和拉拔强度变化规律.试验结果表明:钨酸锆填料具有更大的Lewis碱和范德华表面能分量,基质沥青则具备比SBS改性沥青更大的Lewis酸碱和范德华表面能分量;在干燥状态下,钨酸锆替代矿粉作为填料,可提高其与沥青的粘附功,进而提高沥青胶浆拉拔强度;在有水侵蚀下,钨酸锆沥青胶浆具有更大的表面自由能变化,水更倾向于取代基质沥青与钨酸锆浸润.钨酸锆沥青胶浆比矿粉胶浆具有稍差的耐水损害能力.
[Abstract]:In order to analyze the rationality of hydrophilic zirconium tungstate as asphalt mixture filler, based on the theory of surface energy and adhesion work, the surface energy parameters and adhesion work of different fillers and asphalt were measured and calculated, and the water erosion test was designed. The changes of free energy and drawing strength of asphalt mortar with different fillers under water damage were studied. The results show that zirconium tungstate filler has larger Lewis base and van der Waals surface energy component, and matrix asphalt has more Lewis acid base and van der Waals surface energy component than SBS modified asphalt, and zirconium tungstate can replace ore powder as filler under dry condition. The surface free energy of zirconium tungstate asphalt mortar is changed greatly and the water tends to replace the matrix asphalt and zirconium tungstate infiltrate. Zirconium tungstate asphalt mortar has a slightly worse water damage resistance than mineral powder mortar.
【作者单位】：哈尔滨工业大学交通科学与工程学院;广东省建筑科学研究院集团股份有限公司;辽宁省交通工程质量与安全监督局;
【基金】：国家自然科学基金(51408154) 辽宁省交通运输厅交通科技项目(201601) 中国博士后科学基金特别资助(2015T80357)
【分类号】：U414

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