Study on the Temperature-Dependence of the Modulus of LSAM-50 Pavement Materials.

IF 3.1 3区材料科学 Q3 CHEMISTRY, PHYSICAL

Materials Pub Date : 2025-06-03 DOI:10.3390/ma18112606

Yingjun Jiang, Jiangang Xu, Hongjiang Zhang, Yingchao Liang, Jinpeng Du, Di Wu

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引用次数: 0

Abstract

To investigate the temperature dependence of the modulus of LSAM-50 flexible base asphalt pavement (LSAM-50 pavement) materials, specifically SMA-13, AC-20, and LSAM-50. The effects of temperature on the modulus of LSAM-50 pavement materials were investigated, and a temperature-dependent model of resilient modulus was established. A dynamic modulus master curve was constructed based on a generalized logarithmic Sigmoidal model. The correlation between the resilient modulus and dynamic modulus was studied, and a multiple linear regression model was developed to describe the relationship between the dynamic modulus and resilient modulus, temperature, and loading frequency. The results show that the resilient modulus and dynamic modulus gradually decrease with the increase in temperature and then tend to stabilize. The resilient modulus of LSAM-50 is higher than that of SMA-13 and AC-20 in the entire temperature range, and the dynamic modulus of LSAM-50 is higher than that of SMA-13 and AC-20 in the high-temperature range. The correlation coefficients (R²) of the established resilient modulus and dynamic modulus estimation models are greater than 0.97 and 0.94, respectively.

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LSAM-50路面材料模量随温度变化的研究

研究LSAM-50柔性基沥青路面（LSAM-50路面）材料，特别是SMA-13、AC-20和LSAM-50的模量对温度的依赖性。研究了温度对LSAM-50路面材料弹性模量的影响，建立了LSAM-50路面材料弹性模量的温度依赖模型。基于广义对数s型模型，构造了动态模量主曲线。研究了弹性模量与动力模量之间的相关性，建立了动力模量与弹性模量、温度、加载频率之间的多元线性回归模型。结果表明：随着温度的升高，弹性模量和动模量逐渐减小，而后趋于稳定；在整个温度范围内，LSAM-50的弹性模量高于SMA-13和AC-20，在高温范围内，LSAM-50的动态模量高于SMA-13和AC-20。建立的弹性模量和动态模量估算模型的相关系数R2分别大于0.97和0.94。

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来源期刊

Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

5.80

自引率

14.70%

发文量

7753

审稿时长

1.2 months

期刊介绍： Materials (ISSN 1996-1944) is an open access journal of related scientific research and technology development. It publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Materials provides a forum for publishing papers which advance the in-depth understanding of the relationship between the structure, the properties or the functions of all kinds of materials. Chemical syntheses, chemical structures and mechanical, chemical, electronic, magnetic and optical properties and various applications will be considered.