Asphalt Cement Chip Seals in Oregon PDF Download

Author: Andrew Griffith
Publisher:
ISBN:
Category : Pavements, Asphalt concrete
Languages : en
Pages : 0

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Author: Gordon Beecroft
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 76

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Author:
Publisher:
ISBN:
Category : Asphalt-rubber
Languages : en
Pages : 18

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Author: Douglas D. Gransberg
Publisher: Transportation Research Board
ISBN: 0309097444
Category : Asphalt emulsion mixtures
Languages : en
Pages : 120

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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 342: Chip Seal Best Practices examines ways to assist in the development and implementation of pavement preservation programs by identifying the benefits of using chip seal as part of a preventive maintenance program and by highlighting advanced chip seal programs in use around the world. The report includes approximately 40 best practices in the areas of chip seal design methods, contract administration, equipment practices, construction practices, and performance measures. According to the report, the increased use of chip seals for maintenance can be a successful, cost-effective way of using preventive maintenance to preserve both low-volume and higher-volume pavements.

Author: J. Paul Guyer, P.E., R.A.
Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 31

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Book Description
Introductory technical guidance for civil engineers, highway engineers and construction managers interested in surface rehabilitation of asphalt concrete pavements for streets and highways. Here is what is discussed: 1. INTRODUCTION, 2. OBJECTIVES & SCOPE, 3. TYPES OF SURFACE REHABILITATION TECHNIQUES, 4. SUMMARY.

Author: Elizabeth A. Hunt
Publisher:
ISBN:
Category : Pavements, Asphalt concrete
Languages : en
Pages : 42

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Author: Scott Shuler
Publisher: Transportation Research Board
ISBN: 0309155398
Category : Technology & Engineering
Languages : en
Pages : 111

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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Report 680: Manual for Emulsion-Based Chip Seals for Pavement Preservation examines factors affecting chip performance, highlights design and construction considerations, and explores procedures for selecting the appropriate chip seal materials. The report also contains suggested test methods for use in the design and quality control of chip seals. Appendices A to J of NCHRP Report 680 provide further elaboration on the work performed in this project--

Author: Denise Hoyt
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Chip seals are a pavement surface treatment used for maintaining asphalt concrete pavements. National Cooperative Highway Research Program (NCHRP) Project 14-17 was performed to produce a national Chip Seal Manual which would consolidate the best chip seal engineering practices. A subcontract to NCHRP Project 14-17 performed at Texas A & M University was the basis for this thesis. It included the following tasks: investigation of a testing and grading system for grading asphalt binder residues from chip seal emulsions; and investigation of texture measurement methods for assessing existing pavement macrotexture before a chip seal is placed. The performance graded (PG) asphalt binder specification, which was developed to characterize asphalt binder properties related to the performance of hot mix asphalt concrete in pavements, cannot be directly applied to asphalt binders or emulsion residues for use in chip seals. Therefore, the surface performance graded (SPG) specification was developed using the same equipment as the PG system but with some procedural modifications and different limiting values for the test parameters. NCHRP Project 14-17 utilized the PG and SPG systems to grade base asphalt binders and recovered emulsion residues. Two emulsion residue recovery methods were compared: hot oven evaporation with nitrogen blanket and stirred can with nitrogen purge. The PG and SPG grades were found to be similar for the two emulsion residue recovery methods but slightly different from the base asphalt binder. A strawman specification for emulsion residues in chip seals was recommended for use with the stirred can recovery method. In chip seal construction, macrotexture of the existing pavement affects the rate at which chip seal emulsion must be applied. In this project, existing pavement macrotextures were measured at three chip seal projects immediately before construction using both the sand patch test and the circular track meter, CT Meter. The CT Meter was found to quickly and effectively measure pavement macrotexture. The CT Meter measurements correlated well with the sand patch test measurements. Finally, this project investigated the utility of measuring pavement macrotexture in the laboratory using the aggregate imaging system (AIMS) on pavement cores and on small samples cut from fabricated slabs. Statistical analyses showed good correlation between the mean profile depth, MPD, calculated from AIMS measurements on pavement cores and small samples, based on analysis using 50 mm (2 inch) segment lengths, and the MPD measured on the pavement or on the large fabricated slabs with the CTMeter. These results supported the use of AIMS to measure pavement macrotexture using small samples in the laboratory.

Author: Coleman P. Wyckoff
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 48

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Author: Todd V. Scholz
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 58

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