Long term performance of a highly modified asphalt pavement and application to perpetual pavement design

2016 ◽  
Author(s):  
Robert Q. Kluttz ◽  
Raj Dongré ◽  
R. Buzz Powell ◽  
J. Richard Willis ◽  
David H. Timm
Keyword(s):  
Asphalt Pavement ◽  
Pavement Design ◽  
Modified Asphalt ◽  
Perpetual Pavement ◽  
Long Term Performance ◽  
Term Performance

Evaluation of long-term performance of anti-icing asphalt pavement

2015 ◽  
Vol 84 ◽  
pp. 277-283 ◽  
Author(s):  
Mulian Zheng ◽  
Juanlan Zhou ◽  
Shujuan Wu ◽  
Haitao Yuan ◽  
Jiandang Meng
Keyword(s):  
Asphalt Pavement ◽  
Long Term Performance ◽  
Term Performance

Analysis of Long-Term Performance and Snowmelt Capacity of Anti-Freezing Asphalt Pavement

2020 ◽  
Vol 9 (1) ◽  
pp. 20200026
Author(s):  
Shujuan Wu ◽  
Mulian Zheng ◽  
Qing Liu ◽  
Wen Zhou ◽  
Yifeng Li ◽  
...  
Keyword(s):  
Asphalt Pavement ◽  
Long Term Performance ◽  
Term Performance

Input Parameters for the Mechanistic-Empirical Design of Full-Depth Reclamation Projects

2021 ◽  
pp. 036119812110179
Author(s):  
Vishwa V. Beesam ◽  
Cristina Torres-Machi
Keyword(s):  
Pavement Design ◽  
Design Parameters ◽  
Future Research ◽  
Limited Information ◽  
Full Depth Reclamation ◽  
Input Parameters ◽  
Current Design ◽  
Long Term Performance ◽  
Term Performance

Cold recycling technologies such as full-depth reclamation (FDR) are sustainable and cost-effective techniques for pavement rehabilitation that reduce environmental impacts and construction costs and time. The limited information available on the material properties of FDR mixtures and their characterization in mechanistic-empirical (M-E) pavement design hinders the full deployment of FDR. Previous research has found current M-E default values to be non-representative and overly conservative, leading to an underestimation of the true performance capabilities of FDR materials. To address this gap, this paper analyzes the performance of 11 FDR sites constructed throughout Colorado, U.S., and compares their long-term performance with M-E predictions. The objective of this paper is to recommend input values for the M-E design of FDR base materials that result in reliable predictions of FDR long-term performance. The analysis includes both non-stabilized and emulsion-stabilized FDR projects. Both initial International Roughness Index (IRI) and resilient modulus were found to have a significant impact on M-E predictions and were calibrated in a two-step process. The proposed input parameters lead to a conservative design of FDR projects and result in improved IRI predictions compared with the ones derived from current design criteria. With the current design parameters, IRI predictions were, on average, overestimated by 51 in./mi, whereas the proposed input parameters make it possible to reduce this difference to 17 in./mi. Future research is needed to improve current models in M-E pavement design software to adequately model cold in-place recycled layers such as FDR.

Long-term performance deterioration models for semi-rigid asphalt pavement in cold region

2021 ◽  
Vol 14 (6) ◽  
pp. 697-707 ◽  
Author(s):  
Ling Yu ◽  
Lingyun You ◽  
Huaizhi Zhang ◽  
Siyu Jia ◽  
Yitong Zhang ◽  
...  
Keyword(s):  
Asphalt Pavement ◽  
Cold Region ◽  
Performance Deterioration ◽  
Long Term Performance ◽  
Term Performance

scholarly journals Experience and challenges of long-term performance research on asphalt pavement

2020 ◽  
Vol 65 (30) ◽  
pp. 3228-3237
Author(s):  
Shuangjie Wang ◽  
Tao Ma ◽  
Weiguang Zhang ◽  
Ying Gao
Keyword(s):  
Asphalt Pavement ◽  
Long Term Performance ◽  
Term Performance ◽  
Performance Research

scholarly journals Effects of Cement–Mineral Filler on Asphalt Mixture Performance under Different Aging Procedures

2019 ◽  
Vol 9 (18) ◽  
pp. 3785 ◽  
Author(s):  
Zhenyang Fan ◽  
Xuancang Wang ◽  
Zhuo Zhang ◽  
Yi Zhang
Keyword(s):  
Asphalt Mixture ◽  
Tensile Tests ◽  
Asphalt Mixtures ◽  
Modified Asphalt ◽  
The Road ◽  
Aging Conditions ◽  
Mineral Powder ◽  
Long Term Performance ◽  
Term Performance

Cement-containing mineral powder can effectively improve the moisture stability of an asphalt mixture; therefore, this study systematically summarizes the research status of cement–mineral fillers on the performance of an asphalt mixture and determines the limitations of related studies. In this study, long-term performance tests of styrene-butadiene-styrene- (SBS)-modified asphalt mixtures are designed and evaluated with different blending ratios of the cement–mineral powder under three aging conditions. Moreover, the effect of the cement–mineral composite filler on long-term performance of the asphalt mixture using different blending ratios is determined. Cement improves the high-temperature performance and water stability of asphalt mixtures, but only for certain aging conditions. Considering the regulations for the road performance of asphalt mixtures for three aging conditions, as well as long-term performance considerations, the results indicated that the mass ratio of Portland cement to mineral powder must not exceed 2:2. Low-temperature bending and splitting tensile tests confirmed that an excessive amount of cement filler will embrittle the modified asphalt mixture during long-term aging, thereby deteriorating the tensile properties. The mechanism by which the filler influences the performance of the asphalt mixture should be further studied from the perspective of microscopic and molecular dynamics.

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