Asphalt fume composition of warm mix asphalt and smoke suppression performance of warm mix agent
Three warm mixing agents WSG-H02,Sasobit and Evotherm3g were selected to study the smoke suppression performance of warm mixing agents on asphalt smoke,and the difference of emission reduction effect and components of different warm mixed asphalt to hot mixed asphalt(HMA)by gravimetric method and gas chromatography-mass spectrometry(GC-MS).The results show that the emission reduction rate of three warm mix asphalt is WSG-H02,Sasobit and Evotherm3g from high to low,and mainly reduce the aliphatic hydrocarbons and aromatic hydrocarbons in the volatile organic compounds(VOCs)of asphalt.WSG-H02 warm mix agent has dual role in energy saving and emission reduction,not only as viscosity reduction modifier to reduce the construction temperature to reduce asphalt fume emissions,but also to reduce the release of VOCs,It can also be used as asphalt fume inhibitors to reduce the release of asphalt fume.
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