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عنوان فارسی مقاله:
نرم افزار نظارت بر خود بتن آسفالتی رسانا تحت تغییر شکل کششی غیر مستقیم
عنوان انگلیسی مقاله:
Self-monitoring application of conductive asphalt concrete under indirect tensile deformation
سال انتشار : 2915
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مقدمه انگلیسی مقاله:
1. Introduction
Conductive asphalt concrete can be prepared by adding a conductive material such as graphite powder, carbon fibre, or blast furnace carbon black to ordinary asphalt concrete. The conductive properties are thus changed; resistance can decrease from 1013V to 102V or even less (Wen and Chung, 2004, 2005; Wu et al., 2002, 2003, 2005; Liu and Wu, 2010; 2011a,b). This modified conductive concrete also has superior smart characteristics (Liu et al., 2008, 2009; Wu et al., 2003) and road performance and is used in roads, bridges or airport runways; the material is expected to self-monitor stress, strain and defects. Self-monitoring asphalt concrete is a structural materialthat does not require implantation or addition of sensors and has the following advantages:1) The embedding of sensors and resulting performance degradation can be avoided. 2) The material self-monitors its structure at a low cost. 3) Accuracy and timeliness. 4) Stable performance and high durability. In addition, asphalt concrete strain self-monitoring can be applied in weighing (strain-stress correspondence) and confirming the overloading of vehicles, traffic monitoring and structural vibration control (strain correspondence to vibration) (Liu and Wu, 2008). Previous reports showed that (Liu et al., 2009a,b; Liu and Wu, 2011a,b) conductive asphalt composites containing graphite powder can monitor cycle load strain under uniaxial compression. There are several indoor fatigue tests for asphalt mixtures. Currently, the most widely used methods are the simple bending test, support bending test, uniaxial test, indirect tensile test,triaxial test, fracture mechanics testing and rutting test. According to the SHRP, comparing the advantages and disadvantages of the fatigue test method (Superpave Mix Design, 1996; AASHTO, 2015), the repeated bending and indirect tensile tests are better comprehensive evaluations and have been widely adopted. However, beam specimens are difficult to produce and are influenced by unstable factors, and the test methods are complex and produce widely varying results. In contrast, cylindrical specimens are more conveniently produced, and the test methods are simple and easily performed; therefore, this paper introduces the self-monitoring applications of conductive asphalt concrete to the indirect tensile test through changes in resistance of the strain and fatigue damage of the material.
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کلمات کلیدی:
[PDF]Controlling Conductivity of Asphalt Concrete with Graphite - National ... https://ntl.bts.gov/lib/54000/54200/54211/600451-00025-1.pdf by P Park - 2014 - Cited by 3 - Related articles that the addition of graphite improves the indirect tensile strength up to 41 percent. The electrical and ... This document is disseminated under the sponsorship of the .... 2.2 Multifunctional Applications of Conductive Asphalt Concrete . Conductive asphalt concrete: A review on structure design ... - CiteSeerX citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.907.4543&rep=rep1&type... by P Pan - Cited by 8 - Related articles Conductive asphalt concrete can be used to help pavement snow melting/deicing by an asphalt ... tion technique, performance evaluation, and engineering applications of conductive asphalt concrete. ..... sile stiffness modulus, creep stiffness, indirect tensile ..... changes in the resistivity under variations of conductive. Advances in Heterogeneous Material Mechanics 2008: Proceedings of ... https://books.google.com/books?isbn=1932078800 Jinghong Fan, Haibo Chen - 2008 - Technology & Engineering Effects of temperature and cyclic loading on the resistivity of conductive asphalt concrete are conducted in this paper. Indirect Tensile Fatigue Test(ITFT) was ... [PDF]Electrical signal characteristics of conductive asphalt concrete in the ... www.techno-press.org/download.php?journal=sss&volume=14&num=3...11 Therefore, this kind of intelligent materials has a broad application in the field of pavement. ... under repeated traffic load will appear in the conductive asphalt pavement ... It was showed that in the process of indirect tensile fatigue test (Liu et. Self-healing Materials - Page 305 - Google Books Result https://books.google.com/books?isbn=331932778X Martin D. Hager, Sybrand van der Zwaag, Ulrich S. Schubert - 2016 - Technology & Engineering Road Mater Pavement Design 10(1):81–94, Special Issue on Asphalt ... Schlangen E (2013) Other materials, applications and future developments. ... on mechanical characteristics of conductive asphalt concrete by indirect tensile test.
