دانلود رایگان مقاله لاتین ارزیابی آسفالت از سایت الزویر
عنوان فارسی مقاله:
ارزیابی آسفالت تغییر از خالی از هوا بتن آسفالتی از طریق داده آرایه آنتن GPR
عنوان انگلیسی مقاله:
Evaluating asphalt concrete air void variation via GPR antenna array data
سال انتشار : 2015
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مقدمه انگلیسی مقاله:
1. Introduction
The focus of this case study is nondestructive evaluation of air void content in newly constructed asphalt pavement. Airvoid content deviation from the specified range is a major factor in early pavement deterioration [1–3]. Many road ownersspecify destructively cutting cores in the pavement to determine density at randomly chosen locations, such as the currentMinnesota Department of Transportation (MnDOT) specifications [4]. This process is expensive, destructive, labor consuming,and does not provide immediate feedback to the construction inspector or the contractor. Further, cores only represent asmall portion of the total paved surface [4].Ground penetrating radar (GPR) has been used for many construction material related applications [5–7]. This includesasphalt layer thickness determination if the approximate dielectric constant is known [1,8]. Use of air coupled GPR for detectingasphalt pavement air void content variation has been proposed as a nondestructive alternative to cores [1–3,9]. This
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کلمات کلیدی:
[PDF]Assessmentofairvoid contentofasphaltusing ... - Aaltodochttps://aaltodoc.aalto.fi/bitstream/handle/123456789/.../isbn9789526062884.pdf?...1by T Pellinen - 2015 - Related articles... air void content of asphalt using dielectric constant ... pavement condition for both old and new asphalt pavements. The objective is to ... GPR inadvertently reduces observed density variations and may introduce a systematic bias. This makes ... Keywords asphalt, air voids, GPR, permittivity, calibration, dielectric constant.Assessment of air void content of asphalt using dielectric constant ...https://aaltodoc.aalto.fi/handle/123456789/17140Translate this pageby T Pellinen - 2015 - Related articlesAir void content is an important quality measure of pavement condition for ... for the GPR inadvertently reduces observed density variations and may introduce a ...Ground Penetrating Radar Theory and Applicationshttps://books.google.com/books?isbn=0080951848Harry M. Jol - 2008 - Science(2000) have tested stepped frequency radar using 0.5–6.0 GHz air-coupled waves to detect ... In many cases, concrete pavements have asphalt overlay, and in ... also has great variation in the transverse direction of the road, the accuracy of GPR ... GPR quality control applications include measuring the air voids content of ...Using Infrared and High-speed Ground-penetrating Radar for ...https://books.google.com/books?isbn=0309129346Stephen Sebesta, Thomas Scullion, Timo Saarenketo - 2013 - AsphaltThe variation in timecalibration factor is as shown below: C1_C2 ... PANK 4122: Air void content of asphalt pavement, groundpenetrating radar. tf S 0.7 ns 0 ...Civil Engineering Applications of Ground Penetrating Radarhttps://books.google.com/books?isbn=3319048139Andrea Benedetto, Lara Pajewski - 2015 - ScienceGPR is particularly sensitive to moisture, so a GPR system can pick up areas of ... on laboratory slab testing and field testing is that GPR can identify variations in the pavement, isolate the depth of a discontinuity in the pavement, and provide a ... to estimate air void content of asphalt surfaces and to detect mix segregation.
