乳化剂对乳化沥青性能影响分析

Analysis of Emulsifier Influence on Performance of Emulsified Asphalt

采用不同的阳离子乳化剂CH-R、GY-2、MQ-S,变化其剂量制备不同乳化沥青,对乳液乳化效果、标准粘度及蒸发残留物性能进行试验研究,结果表明,CH-R型乳化剂用量为0.8%和GY-2型乳化剂用量为0.3%时,乳化沥青乳化效果较好,对应的乳化沥青性能相对较佳。同时,进行不同乳化沥青与不同集料的粘附性试验,试验结果表明使用碱性集料使得乳化沥青的破乳速度和凝固速度明显加快,集料与沥青之间具有较强的粘结力,稀浆混合料整体具有良好的柔韧性。

The different cation emulsifiers CH-R,GY-2 and MQ-S are used to prepare the different emulsified asphalts by changing their dosages in order to test and study the emulsion emulsifying effect;standard viscosity and evaporation residue performance.The result shows that the emulsifying effect of emulsified asphalt is better and the corresponding perfornnance of emulsified asphalt more excellent when the usage of CH-R emulsifier is 0.8%and the usage of GY-2 emulsifier is 0.3%.At the time,the adhesion experiments of the different emulsified asphalts and the different aggregates are implemented.The test results show that the emulsion breaking speed and concretion speed of emulsified asphalt by the alkalinity aggregates are obviously speeded up.The cohesive force between aggregate and asphalt is stronger,and the slurry mixture has the good integrated flexibility.