Performance of Concrete Pavements Containing Recycled Concrete Aggregate PDF Download

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 285

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Author: Mooncheol Won
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 14

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Author: Ravindra K Dhir
Publisher: ICE Publishing
ISBN: 9780727764638
Category : Technology & Engineering
Languages : en
Pages : 0

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The book is an ideal source of information on the subject and would be a suitable addition to any library as a resource for researchers seeking to develop an overview of the research on this topic.

Author: Patrick Amoah Bekoe
Publisher:
ISBN:
Category :
Languages : en
Pages :

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ABSTRACT: Abstract of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of Engineering CONCRETE CONTAINING RECYCLED CONCRETE AGGREGATE FOR USE IN CONCRETE PAVEMENT By Patrick Amoah Bekoe August 2009 Chair: Mang Tia Major: Civil Engineering Our study evaluated the feasibility of using concrete containing recycled concrete aggregate (RCA) in concrete pavement application. Concrete containing 0%, 25% and 50% of RCA were produced in the laboratory and their properties vital to the performance of concrete pavement evaluated. Result from the laboratory testing program indicates that the compressive strength and elastic modulus is reduced slightly as the percentage of RCA increases. The flexural strength, splitting tensile strength and coefficient of thermal expansion is about the same for concrete containing virgin aggregate and RCA. The free shrinkage increases slightly as the percentage of RCA increases. From the measured properties, a finite element analysis was performed to determine how the concretes containing the different amounts of RCA would perform if they were used in a typical concrete pavement in Florida. The analysis from the finite element model determined the maximum stresses under critical temperature and load conditions. The potential performance of the different pavements was evaluated based on the computed maximum stress to the flexural strength ratio. The maximum stress to flexural strength ratio in the pavement was found to be about the same as the percentage of RCA increases. This indicates that RCA can be used successfully in concrete pavement without affecting the performance.

Author: James Trevor Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 206

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Virgin aggregate is being used faster than it is being made available creating a foreseeable shortage in the future. Despite this trend, the availability of demolished concrete for use as recycled concrete aggregate (RCA) is increasing. Using this waste concrete as RCA conserves virgin aggregate, reduces the impact on landfills, decreases energy consumption and can provide cost savings. However, there are still many unanswered questions on the beneficial use of RCA in concrete pavements. This research addresses the many technical and cost-effective concerns regarding the use of RCA in concrete pavements by identifying concrete mixture and proportioning designs suitable for jointed plain concrete pavements; constructing test sections using varying amounts of RCA; monitoring performance through testing, condition surveys and sensor data; modeling RCA pavement performance; and predicting life cycle costs. The research was carried out as a partnership between the Centre for Pavement and Transportation Technology (CPATT) at the University of Waterloo, the Cement Association of Canada, Dufferin Construction, and the Natural Sciences and Engineering Research Council of Canada.rgin aggregate increase as the sources becomes depleted. Multivariable sensitivity analysis showed that the LCCA results were sensitive to construction costs, discount rate, and maintenance and rehabilitation quantities.

Author: ACI Committee 522
Publisher:
ISBN: 9780870313646
Category : Lightweight concrete
Languages : en
Pages : 38

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"This report provides technical information on pervious concrete's application, design methods, materials, properties, mixture proportioning, construction methods, testing, and inspection. The term 'pervious concrete' typically describes a near-zero-slump, open-graded material consisting of portland cement, coarse aggregate, little or no fine aggregate, admixtures, and water." [p. 1]

Author:
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 300

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This interim report documents the field performance of nine concrete pavement projects that incorporate recycled concrete aggregate (RCA) in the construction of the pavement. Multiple sections were evaluated on many of the nine projects, due to perceived differences in performance levels or variations in pavement design (such as the use of virgin aggregate or the inclusion of dowel bars). All told, a total of 17 sections (of which 12 contain RCA) were subjected to an extensive field testing program, consisting of pavement condition surveys, drainage surveys, falling weight deflectometer (FWD) testing, coring, and serviceability assessments.

Author: Jeffrey R. Sturtevant
Publisher:
ISBN:
Category :
Languages : en
Pages : 278

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Author: Nabil Hossiney
Publisher:
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Category :
Languages : en
Pages :

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ABSTRACT: Our study evaluated the feasibility of using concrete containing recycled asphalt pavement (RAP) in concrete pavement applications. Concrete containing 0[percent], 10 [percent], 20[percent] and 40[percent] of RAP were produced in the laboratory, and evaluated for their properties which are relevant to performance of concrete pavements. Using the measured properties of these concretes containing RAP, finite element analysis was then performed to determine how the concretes containing different amounts of RAP would perform if it were used in a typical concrete pavement in Florida. Results of the laboratory testing program indicate that compressive strength, splitting tensile strength, flexural strength and elastic modulus of the concrete decrease as the percentage of RAP increases. The coefficient of thermal expansion appears to increase slightly with the use of one RAP, and decrease slightly with the use of a second RAP. The drying shrinkage appears to increase slightly with increasing RAP content. When analysis was performed to determine the maximum stresses in a typical concrete pavement in Florida under critical temperature and load conditions, the maximum stress in the pavement was found to decrease as the RAP content of the mix increases, due to a decrease in its elastic modulus. This indicates that using a concrete containing RAP can result in improvement in the performance of concrete pavements.

Author: F. Pacheco-Torgal
Publisher: Elsevier
ISBN: 0857096907
Category : Technology & Engineering
Languages : en
Pages : 671

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Book Description
The civil engineering sector accounts for a significant percentage of global material and energy consumption and is a major contributor of waste material. The ability to recycle and reuse concrete and demolition waste is critical to reducing environmental impacts in meeting national, regional and global environmental targets. Handbook of recycled concrete and demolition waste summarises key recent research in achieving these goals. Part one considers techniques for managing construction and demolition waste, including waste management plans, ways of estimating levels of waste, the types and optimal location of waste recycling plants and the economics of managing construction and demolition waste. Part two reviews key steps in handling construction and demolition waste. It begins with a comparison between conventional demolition and construction techniques before going on to discuss the preparation, refinement and quality control of concrete aggregates produced from waste. It concludes by assessing the mechanical properties, strength and durability of concrete made using recycled aggregates. Part three includes examples of the use of recycled aggregates in applications such as roads, pavements, high-performance concrete and alkali-activated or geopolymer cements. Finally, the book discusses environmental and safety issues such as the removal of gypsum, asbestos and alkali-silica reaction (ASR) concrete, as well as life-cycle analysis of concrete with recycled aggregates. Handbook of recycled concrete and demolition waste is a standard reference for all those involved in the civil engineering sector, as well as academic researchers in the field. Summarises key recent research in recycling and reusing concrete and demolition waste to reduce environmental impacts and meet national, regional and global environmental targets Considers techniques for managing construction and demolition waste, including waste management plans, ways of estimating levels of waste, the types and optimal location of waste recycling plants Reviews key steps in handling construction and demolition waste