|Table of Contents|

Attenuation law and prediction model of skid-resistance performance of asphalt pavement(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2023年5期
Page:
1-10
Research Field:
道路工程
Publishing date:

Info

Title:
Attenuation law and prediction model of skid-resistance performance of asphalt pavement
Author(s):
LIU Ya-min1;  WANG Lei1;  YANG Zhen2
(1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University,Xi'an 710064, Shaanxi, China; 2. CCCC No.1 Highway Survey Design & Research Institute Co. Ltd., Xi'an 710068, Shaanxi, China)
Keywords:
road engineering;  skid-resistance performance;  grey relational analysis;  attenuation law;  prediction model
PACS:
U416.2
DOI:
10.19721/j.cnki.1671-8879.2023.05.001
Abstract:
In order to quantitatively describe the skid-resistance performance attenuation law of asphaltpavement in the whole life cycle, a self-developed multiple accelerated abrasion machine(MAAM)was used for analysing the decay pattern of asphalt mixture skid-resistance performance underdifferent conditions from a material perspective. And the skid-resistance performance attenuation functionof asphalt mixture according to the Asymptotic model fitting was obtained. The gray correlation theory wasused for studying the degree of influence of aggregate-related parameters on the evaluation indexes of skid-resistance performance based on aggregate morphology parameters and mechanical indexes. Based on the resultsof the gray correlation analysis, the pendulum value as the skid-resistance index was preferred to the mainparameters with high degree of influence, and the multivariate linear fitting analysis was carried out toestablish the prediction model of skid-resistance performance of asphalt pavement. The results show thatthe aggregates with good angularity, high polishing value and low abrasion value can effectively improve the skid resistance durability of asphalt pavement. The proportion of coarse aggregate is the main factoraffecting the attenuation range, initial value and final value of skid resistance of asphalt pavement,especially the 9.5 to 16 mm aggregate. The proportion of fine aggregate has a significant effect on therate of skidding attenuation of asphalt pavement, and by adjusting the proportion of coarse and fineaggregate, the skid-resistance performance of asphalt pavement can be effectively improved. The nominalmaximum particle size of aggregate has significant influence on the initial skid resistance of asphaltpavement, but has limited influence on the final value, attenuation amplitude and attenuation rate of theskid resistance stability of asphalt pavement. Compared with dense graded asphalt mixture, discontinuousgraded asphalt mixture and open graded asphalt mixture show better skid resistance.15 tabs, 5 figs, 21 refs.

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Last Update: 2023-10-10