乳化沥青粒径与黏度对其储存稳定性关联影响

Correlation influence of particle size and viscosity of emulsified asphalt on its storage stability

摘要

选择乳化沥青 D₁₀、D₅₀、D₉₀ 特征粒径及标准黏度、恩格拉黏度等性能参数,运用灰色关联熵和皮尔逊相关系数分析法研究其与乳化沥青 1 d、5 d 储存稳定性的关联关系。结果表明:乳化剂表面活性越强,越有利于乳化沥青的稳定;当乳化剂掺量为 3%时,乳化沥青 1、5 d 储存稳定性最优,其 D₁₀、D₅₀、D₉₀ 特征粒径,标准黏度、恩格拉黏度趋于稳定;SQ-1 乳化沥青颗粒未出现聚集现象,SQ-2、SQ-3 乳化沥青颗粒分别出现破乳和聚集现象;特征粒径与乳化沥青 1d、5d 储存稳定性的灰熵关联度顺序为 D₉₀>D₅₀>D₁₀,恩格拉黏度和标准黏度分别与乳化沥青 1、5 d 储存稳定性灰熵关联度最高,且特征粒径与标准黏度、恩格拉黏度相关性均为高度相关;D₉₀ 粒径与乳化沥青 1、5 d 储存稳定性灰熵关联程度最高且呈现高度相关,D₉₀ 粒径在一定程度上能反映乳化沥青的储存稳定性。

Abstract

The characteristic particle sizes (D ₁₀, D ₅₀, D ₉₀), standard viscosity, and Engler viscosity parameters of emulsified 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 D ₁₀, D ₅₀, D ₉₀ 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 degree of characteristic particle size with 1 d and 5 d storage stability is D ₉₀>D ₅₀>D ₁₀. The Engler viscosity and standard viscosity present 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 D ₉₀ has the highest grey entropy correlation with the 1 d and 5 d storage stability of emulsified asphalt and exhibits a strong correlation. The D ₉₀ particle size can reflect the storage stability of emulsified asphalt to a certain extent.

关键词

乳化沥青 / 储存稳定性 / 粒径 / 标准黏度 / 恩格拉黏度

Key words

emulsion asphalt / storage stability / particle size / standard viscosity / Engla viscosity

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基金资助

山东省交通科技发展计划(2025BAI14-02)

山东省交通科技发展计划(2023B92-03)

山东省交通科技发展计划(2023B89)

山东省交通科技发展计划(2022B101)

济南市科技计划“揭榜挂帅”项目(202527065)