Author: A. T. PapagiannakisPublisher:
ISBN:
Category : Asphalt emulsion mixtures
Languages : en
Pages : 116
Book Description
A Review of Crumb-rubber Modified Asphalt Concrete Technology
Author: A. T. PapagiannakisPublisher:
ISBN:
Category : Asphalt emulsion mixtures
Languages : en
Pages : 116
Book Description
Short-term Guidelines to Improve Crumb Rubber Modified Asphalt Concrete Pavements
Author: Sekhar RebalaPublisher:
ISBN:
Category : Asphalt-rubber
Languages : en
Pages : 210
Book Description
Crumb Rubber Modified Asphalt Concrete in Oregon
Author: Publisher:
ISBN:
Category : Pavements, Asphalt concrete
Languages : en
Pages : 0
Book Description
Development of a Crumb Rubber Modified (CRM) Asphalt Concrete Mix Design
Author: Mustaque HossainPublisher:
ISBN:
Category : Asphalt-rubber
Languages : en
Pages : 112
Book Description
The objective of this project was to develop an asphalt mix design method incorporating crumb rubber and using the "Wet" or "Dry" method of producing Crumb Rubber Modified Asphalt (CRM). Several resurfacing projects have been constructed using both the "Wet" and "Dry" methods. Based on this study, the Kansas Department of Transportation could use CRM mixes with a binder content between 7.5% and 9.0% depending on the percent air voids, with 19% to 22% rubber content. In this study, it was observed that using 24% rubber produced mixes that were too sticky to manage. With a rubber content of less than 18% combined with AC-5 it was difficult to satisfy the minimum viscosity requirements. Fracture tests can be used as a basis to determine the optimum binder content for any asphalt-rubber mix.
Crumb Rubber Modified Asphalt Concrete in Oregon
Author: Elizabeth A. HuntPublisher:
ISBN:
Category : Pavements, Asphalt concrete
Languages : en
Pages : 60
Book Description
Use of Recycled Chunk Rubber Asphalt Concrete (CRAC) on Low Volume Roads and Use of Recycled Crumb Rubber Modifier in Asphalt Pavements
Author: Mustaque HossainPublisher:
ISBN:
Category : Asphalt-rubber
Languages : en
Pages : 112
Book Description
The major objective of this project was to formulate a Chunk Rubber Asphalt Concrete (CRAC) mix for use on low volume roads. CRAC is a rubber modified asphalt concrete product produced by the 'dry process' where rubber chunks of 1/2 inch size are used as aggregate in a cold mix with a type C fly ash. The second objective of this project was to develop guidelines concerning the use of rubber modified asphalt concrete hot mix to include: 1) design methods for use of asphalt-rubber mix for new construction and overlay; 2) mix design method for asphalt-rubber; and, 3) test method for determining the amount of rubber in an asphalt-rubber concrete for quality control purposes.
Crumb Rubber Modified Asphalt Concrete in Oregon
Author: Asphalt Paving Technology
Author: Carl L. MonismithPublisher: McGraw-Hill Companies
ISBN: 9780070429833
Category : Technology & Engineering
Languages : en
Pages : 480
Book Description
Focusing on asphalt paving technology, this work emphasizes quality control and quality assurance programmes in producing high-quality pavements. It combines theory and practice of asphalt paving including developments and information from the recently completed Strategic Highway Research Program which was designed to improve asphalt specifications, mix design and analysis systems.
Polymerized Crumb Rubber Modified Mixtures in Minnesota
Author: Publisher:
ISBN:
Category : Asphalt-rubber
Languages : en
Pages : 198
Book Description
This research program was based on laboratory and field studies. All work was limited to the use of a 10-mesh crumb rubber in the dry process. An evaluation of the asphalt-rubber interactions indicated that there should be a reasonable level of interaction between the crumb rubber and the asphalt cement selected for the project. A suggested criterion for defining an acceptable level of interaction would be to establish a minimum viscosity of 15 Poise (Brookfield viscosity) for a neat asphalt cement modified with 20% crumb rubber. When designing a crumb rubber modified mixture, the aggregate gradation should be substantially gapped. The target gradation used in the construction of the Babbit, Minnesota test sections should be adjusted for crumb rubber gradations volumetrically; generally, 1 gram of crumb rubber occupies the same volume as 3 grams of aggregate for a given sieve size. The optimum asphalt content for crumb rubber mixtures should be based on air voids from 1.5 to 3%.
Design and Construction of Asphalt Paving Materials with Crumb Rubber Modifier
Author: Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 128
Book Description
This document is a comprehensive overview of the terminology, processes, products, and applications of crumb rubber modifier (CRM) technology. This technology includes any use of scrap tire rubber in asphalt paving materials. In general, CRM technology can be divided into two categories--the wet process and the dry process. When CRM is incorporated into an asphalt paving material, it will modify the properties of the binder (asphalt rubber) and/or act as a rubber aggregate (rubber modified hot mix asphalt). The five concepts for using CRM discussed in the report are McDonald, PlusRide, generic dry, chunk rubber asphalt concrete, and continuous blending asphalt rubber. An experimental work plan for monitoring performance and a stack emission testing program are also included.