乳化沥青粒径与黏度对其储存稳定性关联影响OA

The characteristic particle sizes(D10,D50,D90),standard viscosity,and Engler viscosity parameters of emulsi-fied asphalt were selected to study their correlation with the 1 d and 5 d storage stability of emulsified asphalt using the grey relational entropy and Pearson correlation coefficient analysis methods.The results show that the stronger the surface activity of the emulsifier,the more conducive to the stability of emulsified asphalt.When the emulsifier dosage is 3%,the 1 d and 5 d storage stability of emulsified asphalt is the best,and its D10,D50,D90 characteristic particle sizes,standard viscosity,and Engler viscosity tend to be stable.SQ-1 emulsified asphalt particles do not appear aggregation phenomenon,whereas SQ-2 and SQ-3 emulsified asphalt particles exhibit demulsification and aggregation,respectively.The grey entropy correlation de-gree of characteristic particle size with 1 d and 5 d storage stability is D90>D50>D10.The Engler viscosity and standard vis-cosity oresent the highest grey entropy correlation with 1 d and 5 d storage stability,and the characteristic particle size shows a strong correlation with standard and Engler viscosities.It is also found that D90 has the highest grey entropy correlation with the 1 d and 5 d storage stability of emulsified asphalt and exhibits a strong correlation.The D90 particle size can reflect the storage stability of emulsified asphalt to a certain extent.