温拌沥青的沥青烟成分及温拌剂抑烟性能

doi:10.13229/j.cnki.jdxbgxb.20220891

Abstract

Abstract:

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.

Key words: road engineering, warm mix asphalt, asphalt fume composition, gravimetric method, gas chromatograph-mass spectrometry, smoke suppression performance

CLC Number:

U414

Yong-li XU,Xu-lan YANG,Ji-sen ZHOU,Song-han YANG,Ming-gang SUN. Asphalt fume composition of warm mix asphalt and smoke suppression performance of warm mix agent[J].Journal of Jilin University(Engineering and Technology Edition), 2024, 54(6): 1701-1707.

Figures/Tables 9

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技术指标	测试结果	规范要求
针入度（25 ℃，100 g，5 s）/（0.1 mm）	83	80~100
软化点/℃	47.5	≥44
延度（5 cm/min，10 ℃）/cm	109	≥20
黏度（135 ℃）/Pa.s	0.389	—

温拌剂	熔点/℃	密度/（g·cm^-3）	闪点/℃	PH
Sasobit	99	0.9	285	—
Evotherm3g	105	1.03	—	10.5
WSG-H02	100	0.9	—	—

化合物种类	WSG-H02	Sasobit	Evotherm3g
烷烃类	69.2	62.7	51.2
芳香烃类	71.9	69.5	67.4
PAHs	81.3	79.2	77.9
醛类	68.5	64.2	61.2
烯烃类	95.3	94.5	83.9
醇类	69.4	69.1	61.2

Asphalt fume composition of warm mix asphalt and smoke suppression performance of warm mix agent

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