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Author: John B. Wojakowski
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 32
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Book Description
The recycling of portland cement concrete pavements (PCCP) can help alleviate any material disposal problems during construction, especially in urban areas and reduce the consumption or importation of virgin aggregate into aggregate poor areas. Two test sections using the coarser fraction from the original crushed PCCP were placed on K-7 in 1985. One section incorporated a recycled base and standard PCCP construction; another section was designed as a recycled base and recycled PCCP. Two other sections were control sections constructed with regular aggregate.
Author: Keith R. Lane
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 32
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Book Description
This report describes Connecticuts first experience with Portland Cement Concrete Recycling. The test location was on I-84 in Waterbury, Connecticut, a major expressway which required extensive realignment and widening. The primary concern was to obtain the technical expertise to design and place a recycled pavement. Secondary factors also investigated were the analysis of environmental, economic and energy factors relative to the option of recycling or new construction of a portland cement concrete pavement.
Author: John B. Wojakowski
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 32
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Book Description
The recycling of portland cement concrete pavements (PCCP) can help alleviate any material disposal problems during construction, especially in urban areas and reduce the consumption or importation of virgin aggregate into aggregate poor areas. Two test sections using the coarser fraction from the original crushed PCCP were placed on K-7 in 1985. One section incorporated a recycled base and standard PCCP construction; another section was designed as a recycled base and recycled PCCP. Two other sections were control sections constructed with regular aggregate.
Author: Robert P. Hoepfner
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages :
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Book Description
This report describes Connecticuts first experience with Portland Cement Concrete Recycling. The test location was on I-84 in Waterbury, Connecticut, a major expressway which required extensive realignment and widening. The primary concern was to obtain the technical expertise to design and place a recycled pavement. Secondary factors also investigated were the analysis of environmental, economic and energy factors relative to the option of recycling or new construction of a portland cement concrete pavement.
Author: William A. Yrjanson
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 60
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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: Timothy John Sergenian
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
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Book Description
Author: R. Gordon McKeen
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 142
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Book Description
The review of current technology pertaining to the recycling of existing portland cement concrete pavements was conducted. The purpose was to assess the applicability of recycling to U.S. Air Force pavement rehabilitation work. Costs of alternatives were reduced to simple models for use in evaluating sensitivity to cost factors. A study of projects on which this technology was used identified aggregate cost and haul distance as key factors.
Author: Allen L. Cooley
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 106
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Book Description
Based upon the work conducted in this study, it was concluded the recycled portland cement concrete pavements are available as an option for the construction of gravel cushion and aggregate base course layers.
Author: M. C. Hironaka
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 116
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Book Description
The objective of this study was to develop criteria and guidelines for recycling portland cement concrete (PCC) airport aprons. Included in this study are all aspects of the recycling process including breakup and removal, steel reinforcement removal, crushing, screening, stockpiling, mix design, testing, placing, finishing, and performance. Recycling of PCC requires some specialized equipment such as pavement breakers and electromagnets for steel removal; however, all of the other equipment and procedures are those commonly used in the construction industry. Based on the regression experimental design procedure and laboratory tests conducted on pavement samples from six airports of widely varying age and conditions, it has been conclusively shown that aged PCC pavements can be recycled into new surface courses that meet strength requirements and have the same cyclic load carrying (fatigue) characteristics as those constructed with virgin sand content - 42 percent.
Author: James Stanley Fergus
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 374
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Book Description
Author: Jerry V. Bergren
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 35
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Book Description
