Viscoelastic Mechanical Model of Asphalt Concrete Considering the Influence of Characteristic Parameter of Fiber Content
-
Published:2021-10-31
Issue:5
Volume:31
Page:283-290
-
ISSN:1169-7954
-
Container-title:Revue des composites et des matériaux avancés
-
language:
-
Short-container-title:RCMA
Author:
Huang Chunshui,Gao Danying,You Peibo
Abstract
This paper carries out bending creep tests on polyester fiber-reinforced asphalt concrete beams, and investigates how the volume ratio and aspect ratio of the fibers influence the parameters of viscoelastic mechanical model and the viscoelastic performance of the asphalt concrete. The results show that: with the growing volume ratio and aspect ratio of the fibers, the midspan deflection and bottom flexural-tensile strain of asphalt concrete beams first dropped and then rose over time; the characteristic parameter of fiber content (FCCP) could reflect the overall effects of the volume ratio and aspect ratio of the fibers. On this basis, a viscoelastic mechanical model was established for the asphalt concrete in the light of the influence of FCCP. The test and theoretical results show that, in our tests, the optimal volume ratio of fibers, optimal aspect ratio of fibers, and optimal FCCP are 0.348, 324, and 1.128 for polyester fiber-reinforced asphalt concrete.
Funder
Colleges and Universities Key Scientific Research Projects of Henan Province
Horizontal Research Project of Xuchang University
Scientific Research Innovation Team of Xuchang University
Publisher
International Information and Engineering Technology Association
Subject
General Materials Science