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为了研究多种气候作用下环氧沥青混凝土的表面抗滑性能,选取沙尘气候、雨水气候和冰冻气候作为不利气候条件,以摆值(BPN*)表征抗滑值,分析了在不利气候作用下环氧沥青混凝土表面摆值的变化规律。研究结果表明,在沙尘气候作用下,与湿润状态相比,路表面抗滑性能在干燥状态下随着沙尘等级提高而下降更加明显;冰冻气候作用对抗滑性能的影响存在明显的冰晶、冰膜、积水3个阶段;与初始干燥清洁状态相比,干燥沙尘气候的路表面抗滑值下降幅度达到23%~44%,小雨量、大雨量作用时的表面抗滑值分别下降20%和30%左右,冰冻气候作用3个阶段路表面抗滑值下降幅度分别为40%、70%和30%。
In order to study the surface skid resistance of epoxy asphalt concrete under various climatic conditions, dust weather, rainwater climate and frozen climate were selected as unfavorable climatic conditions, BPN * was used to characterize the anti-skid values, Variation of the swinging value of epoxy asphalt concrete. The results show that under the dust climate, compared with the wet state, the slip resistance of the road surface decreases more obviously with the increase of the sand dust level in the dry state. The effect of the frozen climate on the slip resistance has obvious ice crystals, Ice film, and stagnant water. Compared with the initial dry and clean status, the anti-skid value of the road surface in the dry sand and dust reduced by 23% -44%, while the surface anti-skid values decreased under the effects of light rain and heavy rainfall 20% and 30% respectively, and the surface slip resistance of the three stages of the frozen climate decrease 40%, 70% and 30% respectively.