Development of Sand-Containing Fog Seal Emulsified Asphalt
The sand-containing fog seal technology is an effective preventive maintenance method for the initial diseases of the pavement surface layer.The laboratory emulsified asphalt preparation and test analysis methods were used to carry out the independent development and research of emulsified asphalt containing sand fog seal coat.The selection and inspection of various emulsifiers,base asphalt,fillers and additives were carried out,and the lotion formula suitable for this technology was optimized to test its actual use performance.Comprehensively considering the emulsifying ability of emulsifier to base asphalt,the basic properties of base asphalt,the influence of fillers and additives on the emulsifying ability,system stability and storage stability of emulsified asphalt lotion,the composition formula was adjusted,the preparation conditions of sand-containing fog seal emulsified asphalt lotion were optimized,and the appropriate sand-containing fog seal emulsified asphalt lotion formula was obtained.
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