In-depth Study of Cold In-place Recycled Pavement Performance: Construction and inspection manual PDF Download
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Author: Todd V. Scholz
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 58
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Book Description
Author: Todd V. Scholz
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 58
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Book Description
Author: Todd V. Scholz
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 230
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Book Description
Author:
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 404
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Book Description
Author:
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 272
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Book Description
Author:
Publisher:
ISBN:
Category : Recycling (Waste, etc.)
Languages : en
Pages : 328
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Book Description
Author: Don Chen
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 232
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Book Description
Cold in-place recycling (CIR) has become an attractive method for rehabilitating asphalt roads that have good subgrade support and are suffering distress related to non-structural aging and cracking of the pavement layer. Although CIR is widely used, its use could be expanded if its performance were more predictable. Transportation officials have observed roads that were recycled under similar circumstances perform very differently for no clear reason. Moreover, a rational mix design has not yet been developed, design assumptions regarding the structural support of the CIR layer remain empirical and conservative, and there is no clear understanding of the cause-effect relationships between the choices made during the design/construction process and the resulting performance. The objective of this project is to investigate these relationships, especially concerning the age of the recycled pavement, cumulative traffic volume, support conditions, aged engineering properties of the CIR materials, and road performance. Twenty-four CIR asphalt roads constructed in Iowa from 1986 to 2004 were studied: 18 were selected from a sample of roads studied in a previous research project (HR-392), and 6 were selected from newer CIR projects constructed after 1999. This report describes the results of comprehensive field and laboratory testing for these CIR asphalt roads. The results indicate that the modulus of the CIR layer and the air voids of the CIR asphalt binder were the most important factors affecting CIR pavement performance for high-traffic roads. For low-traffic roads, the wet indirect tensile strength significantly affected pavement performance. The results of this research can help identify changes that should be made with regard to design, material selection, and construction in order to improve the performance and cost-effectiveness of future recycled roads.
Author:
Publisher:
ISBN:
Category : Air travel
Languages : en
Pages : 796
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Book Description
Author: J. Paul Guyer
Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 32
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Book Description
Introductory technical guidance for civil engineers and other professional engineers and construction managers interested in cold recycling of asphalt concrete pavement. Here is what is discussed: 1. INTRODUCTION, 2. BACKGROUND, 3. INITIAL PROJECT SELECTION CRITERIA, 4. TRAFFIC, 5. STRUCTURAL ASSESSMENT, 6. OVERLAY THICKNESS DESIGN, 7. INITIAL STRUCTURAL SUPPORT, 8. PROJECT LENGTH, 9. CURING, 10. UTILITIES, 11. SURFACE TREATMENTS, 12. PAVING FABRICS, GEOSYNTHETICS AND CRACK SEAL, 13. PATCHES, 14. FINAL PROJECT SELECTION, 15. ECONOMIC ASSESSMENT, 16. SUMMARY, 17. SIGNIFICANT IN-PLACE RECYCLING RESOURCES, 18. REFERENCES.
Author:
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 96
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Book Description
Author: D. Allen
Publisher:
ISBN:
Category : Asphalt emulsion mixtures
Languages : en
Pages : 21
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Book Description
Since 1984, the Oregon State Highway Division has constructed 724 km (450 centerline miles) of cold in-place recycled pavements. During this period, an intensive study was undertaken by the Oregon Department of Transportation (ODOT) and Oregon State University (OSU) with the following purposes: 1. To develop an improved mix design procedure for cold in-place recycled pavements. 2. To evaluate the structural contribution of cold in-place recycled pavements. 3. To develop improved guidelines and specifications for the construction of cold in-place recycled pavements.
