Author: Donald Jordison Publisher: ISBN: Category : Pavements, Asphalt Languages : en Pages : 54
Book Description
This demonstration project consisted of three adjacent highway resurfacing projects using asphalt cement concrete removed from an Interstate highway which had become severely rutted. The salvaged asphaltic concrete was later crushed and hauled to a plant site where it was combined with virgin materials to resurface the three projects. Only two of the projects were used for performance evaluation as the third project was in an interchange area including ramps and was otherwise too short. It was concluded that recycling was cost effective and a high quality surface can be constructed using recycled asphalt cement concrete.
Author: Richard P. Henely Publisher: ISBN: Category : Pavements, Asphalt Languages : en Pages : 64
Book Description
After some success in the process of recycling asphalt pavements in 1975, Kossuth County decided to implement further recycling projects on a larger scale in its 1976 road construction program. The work done in 1975 indicated that a quality product could be produced, but that an air pollution problem created during the heating and mixing operation must be brought under reasonable control. As part of its 1976 road program, Kossuth County planned to salvage a total of 16 miles of old asphalt pavements in three projects. Two of these projects were three miles in length and the third project was ten miles long. The ten mile project was selected by the Federal Highway Authority as one of the recycling projects to be completed in cooperation with Demonstration Project No. 39, Recycling Asphalt Pavements.
Author: Wyoming. State Highway Department Publisher: ISBN: Category : Pavements Languages : en Pages : 116
Book Description
A primary problem associated with recycling is the pollution created by the combustion of asphaltic material during heating in a conventional drum dryer. Also of importance is the aging characteristics of recycled materials and their performance. This report covers the testing and design methods, construction procedures, resulting air pollution, economy of operation, and performance of a pavement recycled and utilized as a surface course in southeastern Wyoming.
Author: Wade D. Barnes Publisher: ISBN: Category : Pavements Languages : en Pages : 76
Book Description
This project demonstrated that highway pavement recycling with a heater-scarifier-repaver, adding additional asphaltic material and new asphaltic concrete pavement to the mixture, can satisfactorily restore these surfaces. The proper design of new asphaltic concrete pavement material to be added was considered. The laboratory investigative work and necessary construction controls are discussed. Careful records of fuel consumption by the heater-scarifier-repaver machine were kept as were all costs attributed to the project for comparison with conventional resurfacing methods. This method of surface restoration compares very favorably economically with conventional methods.
Author: William A. Yrjanson Publisher: ISBN: Category : Technology & Engineering Languages : en Pages : 60
Book Description
This synthesis will be of interest to pavement designers, construction engineers, and others interested in economical methods for recontstructing portland cement concrete (PCC) pavements. Information is provided on the processes and procedures used by a number of states in using PCC pavement as aggregate in reconstructed concrete pavement. Since 1975 a number of state highway agencies have reconstructed concrete pavements using the old PCC as aggregate in the new pavement. This report of the Transportation Research Board describes the processes used on various projects in several states, giving details of construction procedures, as well as test results on various properties of the recycled aggregates and the resultant concrete.
Author: Charles S. Hughes Publisher: ISBN: Category : Pavements, Asphalt Languages : en Pages : 40
Book Description
This report describes a project in which approximately 6,200 tons (5,630 Mg) of asphaltic concrete were recycled through a conventional asphalt batch plant. During the construction of the project, a buildup of asphalt-coated fines occurred in the dryer and the dust collector. The buildup is thought to have been associated with the fineness and/or the high asphalt content of the recycled mix. To solve the problem, a change was made in the recycling process. The project was completed using a heat transfer method with mix proportions as high as 50% recycled material added to 50% virgin aggregate.
Author: Jon A. Epps Publisher: Transportation Research Board ISBN: 9780309049115 Category : Technology & Engineering Languages : en Pages : 116
Book Description
This synthesis will be of interest to pavement designers, construction engineers, and others interested in economical methods for reconstructing or rehabilitating bituminous pavements. Information is provided on the processes and procedures used by a number of states to recycle asphalt pavements in place without application of heat. Since 1975 a growing number of state highway agencies have reconstructed or rehabilitated asphalt pavements by recycling the old pavement in place. This report of the Transportation Research Board describes the processes used for cold in-place recycling, including construction procedures, mix designs, mixture properties, performance, and specifications.
Author: Donald Jordison
Author: Richard P. Henely
Author: Wyoming. State Highway Department
Author: Bobby R. Lindley
Author: Wade D. Barnes
Author: Bernhard H. Ortgies
Author: William A. Yrjanson
Author: Bernhard H. Ortgies
Author: Charles S. Hughes
Author: Jon A. Epps