硫酸钙晶须在沥青中的应用研究进展

doi:10.19964/j.issn.1006-4990.2025-0067

Abstract

Abstract:

With the increasing amount of industrial by⁃product gypsum in China，exploring its high⁃value utilization pathways has become a current research hotspot.Calcium sulfate whiskers，as a material with high strength，high toughness，and excellent high⁃temperature resistance，are gradually becoming an important method for utilizing industrial by⁃product gypsum.In recent years，research on modifying asphalt with calcium sulfate whiskers has made significant progress，indicating that calcium sulfate whiskers can significantly improve the high⁃temperature performance，rutting resistance，and aging resistance of asphalt.However，the problem of decreased low⁃temperature performance caused by calcium sulfate whiskers in the asphalt modification process still needs to be addressed.To solve these problems，researchers have begun to explore the synergistic use of calcium sulfate whiskers with other materials（such as SBS polymer，waste oils） or surface modification to enhance their performance in asphalt.Based on a systematic review of the field's research progress，the preparation methods，basic properties，and current application status of calcium sulfate whiskers in modified asphalt were introduced.For the first time，the mechanism of action，modification effects，and synergistic applications with other materials of calcium sulfate whiskers in asphalt modification were systematically summarized.Additionally，it was looked forward to the challenges faced in the application of calcium sulfate whiskers and future research directions.As a sustainable and economically beneficial material，calcium sulfate whiskers were expected to provide a new approach for asphalt modification and promote the green development of road engineering.

Key words: calcium sulfate whiskers, asphalt, surface modification, green applications

CLC Number:

O784

SHEN Biqin, JIA Zhongshuai, BAI Qianhui, SHI Peiyang. Research progress on application of calcium sulfate whiskers in asphalt[J]. Inorganic Chemicals Industry, 2026, 58(1): 9-17.

Figures/Tables 6

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