Field Performance Evaluation of Class C Fly Ash in Full-Depth Reclamation: Case History Study

Published on Jan 1, 2004in Transportation Research Record1.029
· DOI :10.3141/1869-05
Haifang Wen18
Estimated H-index: 18
,
Mathew P. Tharaniyil3
Estimated H-index: 3
+ 1 AuthorsSteve Krebs1
Estimated H-index: 1
(Wisconsin Department of Transportation)
Sources
Abstract
Class C fly ash is a coal combustion product from lignite or subbituminous coal obtained as a result of the power generation process. In recent years, efforts were taken to incorporate self-cementing fly ash into full-depth reclaimed (FDR) material to improve the structural capacity of asphalt pavement base layers. In this study, existing asphalt pavement in County Trunk Highway (CTH) JK in Waukesha County, Wisconsin, was pulverized in place and mixed with fly ash and water to function as a base course. To evaluate the contribution of fly ash to the structural performance of the pavement, nondestructive deflection tests were performed with a KUAB 2m falling weight deflectometer on the outer wheelpath 4 days and 1 year after construction. The modulus of fly ash-stabilized FDR base course increased by 49% 1 year after construction. The structural capacity of the fly ash-stabilized FDR base course in CTH JK also has increased significantly as it ages, because of the pozzolanic reaction. The results of this study indicate that the FDR mixes with self-cementing fly ash may provide an economical method of recycling flexible pavements and reduce the need for expensive new granular base courses for road reconstruction.
📖 Papers frequently viewed together
77 Citations
36 Citations
52 Citations
References6
Newest
#1Haifang WenH-Index: 18
Last. Bruce W. RammeH-Index: 13
view all 3 authors...
Class C fly ash is a coal combustion product from lignite or subbituminous coal obtained as a result of the power generation process. In recent years, efforts have been made to incorporate self-cementing fly ash into cold in-place recycled (CIR) asphalt material to improve the structural capacity of asphalt pavement base layers. In this study, asphalt pavements in County Trunk Highway JK in Waukesha County, Wisconsin, were pulverized in place and mixed with fly ash and water to function as a bas...
16 CitationsSource
#1Rajib B. Mallick (WPI: Worcester Polytechnic Institute)H-Index: 34
#2David S. Bonner (WPI: Worcester Polytechnic Institute)H-Index: 1
Last. Edward J. KearneyH-Index: 5
view all 6 authors...
The full-depth reclamation (FDR) process consists of reclaiming all of an asphalt-bound section along with a predetermined amount of underlying base, with some additive. The objectives of this study were to determine the suitable compactive effort for designing FDR mixes, evaluate the benefits of using different types of additives in terms of improvement of pavement life, and determine suitable structural numbers for pavements recycled with different types of additives. The scope of work for thi...
36 CitationsSource
#1Ronald S. Harichandran (MSU: Michigan State University)H-Index: 18
#2Neeraj Buch (MSU: Michigan State University)H-Index: 12
Last. Gilbert Y. Baladi (MSU: Michigan State University)H-Index: 13
view all 3 authors...
Michigan is rapidly moving toward adopting and using a mechanistic-empirical design for flexible pavements. To facilitate the transition from empirical to mechanistic design methods, the Michigan Department of Transportation contracted the development of software called the Michigan Flexible Pavement Design System (MFPDS). This software provides a holistic framework for analyzing and designing flexible pavements. MFPDS includes modules for AASHTO design, linear and nonlinear mechanistic analysis...
8 CitationsSource
#1Dar-Hao Chen (Texas Department of Transportation)H-Index: 16
#2John Bilyeu (Texas Department of Transportation)H-Index: 11
Last. Michael R Murphy (Texas Department of Transportation)H-Index: 5
view all 4 authors...
Repeated falling weight deflectometer (FWD) tests were conducted at three sites. The tests were conducted at regular intervals for 2 to 3 consecutive days per location, and also done during different seasons in order that the widest possible range of temperatures could be obtained. The influence of cracks on temperature correction was also investigated. Temperature correction equations for deflection and moduli were developed so that users could be allowed to input their own reference temperatur...
63 CitationsSource
Many roads and streets fail structurally after having performed well for several years. The standby treatment of a hot-mix overlay does not address the real problem with most of these roads—inadequate roadbase strength. Public agencies throughout the United States are making fulldepth reclamation (FDR) one of the most popular pavement rehabilitation methods. The FDR process allows complete reconstruction using 100 percent of the existing pavement materials, while correcting grade, cross slope, a...
24 CitationsSource
#1Stephen A Cross (KU: University of Kansas)H-Index: 8
#2David Young (KU: University of Kansas)H-Index: 2
The Kansas Department of Transportation has developed an innovative method of rehabilitating low-volume pavements using cold in-place recycling (CIR) and Type C fly ash. Previous field test sections have indicated that fly ash improves constructability and moisture sensitivity. However, the same field test sections have exhibited increased cracking with increased fly ash content and a drop in pavement modulus with time. A laboratory study was undertaken to evaluate the effect of fly ash content ...
10 CitationsSource
Cited By32
Newest
#1Vishwa V. Beesam (CU: University of Colorado Boulder)
#2Cristina Torres-Machi (CU: University of Colorado Boulder)H-Index: 10
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 a...
Source
Nowadays, high emphasis is placed on the efficient use of resources for optimum management of transport infrastructure. The use of non-destructive diagnostics is the main application for visualization and support of intelligent infrastructure models. Moreover, such models also have enormous potential to support the “smart city” concept. Disaster management, 3D cadaster, energy assessment, pavement performance, pollution monitoring and visibility analysis could benefit from regular pavement diagn...
Source
#1Ali Reza Ghanizadeh (Sirjan University of Technology)H-Index: 9
#2Morteza Rahrovan (YU: Yazd University)H-Index: 2
The recycled layer in full-depth reclamation (FDR) method is a mixture of coarse aggregates and reclaimed asphalt pavement (RAP) which is stabilized by a stabilizer agent. For design and quality control of the final product in FDR method, the unconfined compressive strength of stabilized material should be known. This paper aims to develop a mathematical model for predicting the unconfined compressive strength (UCS) of soil-RAP blend stabilized with Portland cement based on multivariate adaptive...
5 CitationsSource
#1Ali Reza Ghanizadeh (Sirjan University of Technology)H-Index: 9
#2Morteza RahrovanH-Index: 2
Last. Kazem Barkhordari BafghiH-Index: 1
view all 3 authors...
Abstract One method for improvement of distressed pavements is full-depth reclamation (FDR). In this technology, the present asphalt layer is pulverized and mixed with the aggregate layer beneath it and then the mixture is stabilized using a stabilizer agents such as Portland cement in order to increase the strength parameters of the mixture. The aim of this study is to evaluate the laboratory results of stabilizing the blend of reclaimed asphalt pavement (RAP) and aggregates with cement in orde...
13 CitationsSource
#1Ali JamshidiH-Index: 14
#2Kiyofumi Kurumisawa (Hokkaido University)H-Index: 12
Last. Gregory W White (University of the Sunshine Coast)H-Index: 7
view all 5 authors...
Abstract Pavements are one of the most energy-intensive infrastructure assets that depend on non-renewable natural resources. Against the background of restrictions on landfill disposal, the increased use of alternative materials such as industrial byproducts in pavement construction has gained great attention from academic and industrial sectors. However, comprehensive research covering various aspects of pavements incorporating different byproducts is lacking. The main purpose of this state-of...
13 CitationsSource
#1Xingyi Zhu (Tongji University)H-Index: 23
#2Zhao Du (Tongji University)H-Index: 1
Last. Feng Li (MTO: Ontario Ministry of Transportation)H-Index: 7
view all 4 authors...
In order to establish the technical standard system of an interlayer stress absorbing composite sticker (ISACS), technical indexes including thickness, mass per unit area, tensile force, and corresponding elongation rate, performance after thermal aging test, and low-temperature flexibility were developed based on the study of relevant waterproofing membrane tests and the serviceability of ISACS. Six samples of ISACS made of three different kinds of materials, including glass fiber, polypropylen...
1 CitationsSource
#1Hasan A. Alghamdi (OU: Ohio University)
1 Citations
#1Peter J. Becker (Iowa State University)H-Index: 1
#2David White (Iowa State University)H-Index: 92
Last. Yang Zhang (Iowa State University)H-Index: 5
view all 5 authors...
This paper describes results from a study comparing the performance of side-by-side test sections of pavement foundation layers constructed with on-site recycled materials and surfaced with hot-mix asphalt (HMA). Test sections included recycled materials blended with subgrade to create a mechanically stabilized subgrade layer and recycled materials placed in an overexcavated subgrade layer. In situ falling weight deflectometer (FWD), dynamic cone penetrometer (DCP), and laboratory freeze–thaw te...
Source
#2Benjamin F. BowersH-Index: 9
Last. Alex K. Apeagyei (University of Nottingham)H-Index: 16
view all 3 authors...
Rehabilitating or reconstructing existing asphalt pavements by applying in-place pavement recycling techniques has been shown to be more cost-effective and more environmentally friendly than with traditional techniques. However, the scanty information in the literature documenting the structural and functional performance of these processes for high-volume roadways, leads to a perception by pavement engineers that the techniques are suitable only for lower-volume roads. This paper presents perfo...
10 CitationsSource
This study deals with estimation of fatigue lives of bituminous mixtures using artificial neural networks. Different types of fly ash were used as filler replacing agents in a dense bituminous mixture. Fatigue tests were performed using repeated load indirect tensile test apparatus under controlled stress conditions. For determination of fatigue life, the initiation of macro crack was accepted as the main criteria to terminate the test. The full-scale tests on asphalt pavement sections are very ...
4 CitationsSource