Cold In-place Recycling Literature Review and Preliminary Mixture Design Procedure PDF Download
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Author: Atenea Salomon
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 77
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Book Description
Author: Atenea Salomon
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 77
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Book Description
Author: Hosin David Lee
Publisher:
ISBN:
Category : Foamed materials
Languages : en
Pages : 116
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Book Description
This study evaluates one of the recycling techniques used to rehabilitate pavement, called Cold In-Place Recycling (CIR). CIR is one of the fastest growing road rehabilitation techniques because it is quick and cost-effective. The document reports on the current practice of CIR with emulsion, presents a literature review of research on foamed asphalt, discusses the foaming experiment, presents a field data collection and compaction study, and describes the determination of mix design parameters for CIR with foamed asphalt.
Author: Hosin David Lee
Publisher:
ISBN:
Category : Foamed materials
Languages : en
Pages : 252
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Book Description
Asphalt pavement recycling has grown dramatically over the last few years as a viable technology to rehabilitate existing asphalt pavements. Iowa's current Cold In-place Recycling (CIR) practice utilizes a generic recipe specification to define the characteristic of the CIR mixture. As CIR continues to evolve, the desire to place CIR mixture with specific engineering properties requires the use of a mix design process. A new mix design procedure was developed for Cold In-place Recycling using foamed asphalt (CIR-foam) in consideration of its predicted field performance. The new laboratory mix design process was validated against various Reclaimed Asphalt Pavement (RAP) materials to determine its consistency over a wide range of RAP materials available throughout Iowa. The performance tests, which include dynamic modulus test, dynamic creep test and raveling test, were conducted to evaluate the consistency of a new CIR-foam mix design process to ensure reliable mixture performance over a wide range of traffic and climate conditions. The "lab designed" CIR will allow the pavement designer to take the properties of the CIR into account when determining the overlay thickness.
Author: Soohyok Im
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 0
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Book Description
An extensive literature review on cold in-place recycling (CIR) mixture designs and requirements along with laboratory testing and pavement performance prediction was conducted in this project. Based on the findings and results from prior tasks, this document shows the recommended CIR mixture design requirements, and the recommended mixture testing for quality control, respectively. While this project's activities focused primarily on materials for CIR, based on the literature and the findings in this project, it should also be appropriate for cold central plant recycled mixtures.
Author: Hosin Lee
Publisher:
ISBN:
Category : Asphalt emulsion mixtures
Languages : en
Pages : 138
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Book Description
The previous research performed laboratory experiments to measure the impacts of the curing on the indirect tensile strength of both CIR-foam and CIR-emulsion mixtures. However, a fundamental question was raised during the previous research regarding a relationship between the field moisture content and the laboratory moisture content. Therefore, during this research, both temperature and moisture conditions were measured in the field by embedding the sensors at a midpoint and a bottom of the CIR layer. The main objectives of the research are to: (1) measure the moisture levels throughout a CIR layer and (2) develop a moisture loss index to determine the optimum curing time of CIR layer before HMA overlay. To develop a set of moisture loss indices, the moisture contents and temperatures of CIR-foam and CIR-emulsion layers were monitored for five months. Based on the limited field experiment, the following conclusions are derived: The moisture content of the CIR layer can be monitored accurately using the capacitance type moisture sensor. The moisture loss index for CIR layers is a viable tool in determining the optimum timing for an overlay without measuring actual moisture contents. The modulus back-calculated based on the deflection measured by FWD seemed to be in a good agreement with the stiffness measured by geo-gauge. The geo-gauge should be considered for measuring the stiffness of CIR layer that can be used to determine the timing of an overlay. The stiffness of CIR-foam layer increased as a curing time increased and it seemed to be more influenced by a temperature than moisture content. The developed sets of moisture loss indices based on the field measurements will help pavement engineers determine an optimum timing of an overlay without continually measuring moisture conditions in the field using a nuclear gauge.
Author: Giovanni B. Barla
Publisher:
ISBN: 9788855528122
Category : Computer-aided engineering
Languages : en
Pages : 754
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Book Description
Author: Felipe Filizzola Camargo
Publisher:
ISBN:
Category :
Languages : en
Pages : 258
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Book Description
Author: Soohyok Im
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 0
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Book Description
"This guideline describes procedures for selecting and obtaining representative samples and the laboratory mix design procedures for cold in-place recycling (CIR) using the indirect tensile strength (IDT) test."--Page 1.
Author: Asphalt Institute
Publisher:
ISBN: 9781934154090
Category : Aggregates (Building materials)
Languages : en
Pages : 185
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Book Description
Author: Marshall R. Thompson
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 28
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Book Description
