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Using Recycled Concrete As Aggregate In Concrete Pavements To Reduce Materials Cost
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Book Synopsis Using Recycled Concrete As Aggregate in Concrete Pavements to Reduce Materials Cost by : Kho Pin Verian
Download or read book Using Recycled Concrete As Aggregate in Concrete Pavements to Reduce Materials Cost written by Kho Pin Verian and published by . This book was released on 2013-12-31 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recycled Concrete Aggregate by : James Trevor Smith
Download or read book Recycled Concrete Aggregate written by James Trevor Smith and published by . This book was released on 2009 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Evaluation of Low-quality Recycled Concrete Pavement Aggregates for Subgrade Soil Stabilization by : Masoumeh Tavakol
Download or read book Evaluation of Low-quality Recycled Concrete Pavement Aggregates for Subgrade Soil Stabilization written by Masoumeh Tavakol and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recycled concrete aggregate (RCA) is the byproduct of the demolition of concrete structures and pavements. An estimated 140 million tons of concrete waste is produced annually in the United States, most of which ends up in landfills. The use of RCA to replace quarried aggregates in paving projects is one way to utilize these materials and alleviate concerns regarding this increasing waste stream. RCA usage prevents waste concrete disposal into landfills, resulting in more sustainable use of mineral aggregate sources, and may further reduce costs associated with paving projects. However, the inferior physical properties of RCA, such as the presence of recycled mortar, complicate the incorporation of RCA into new concrete mixtures. State highway agencies such as the Kansas Department of Transportation are facing further issues with RCA from D-cracked pavements, raising the question if D-cracked aggregates should be used in paving operations. No known work has evaluated the effect of RCA from D-cracked pavements in subgrade soil stabilization. This study stabilized a low-plasticity clay in Kansas using RCA and three stabilizing materials (lime, Class C fly ash, and a combination of Portland cement and fly ash). Candidate mixtures with varying proportions of chemical stabilizers and D-cracked aggregates were evaluated using the standard Proctor, unconfined compressive strength, linear shrinkage, and California Bearing Ratio tests. Microstructure characteristics of selected mixtures were explored using scanning electron microscopy (SEM) and energy dispersive X-ray tests. Laboratory test results indicated that RCA, in conjunction with all cementitious materials except lime, improved clay strength, stiffness, and shrinkage properties. SEM results indicated that RCA caused a low void space and a dense arrangement of soil particles. RCA effectively improved evaluated mixture properties when an adequate soil-RCA bond was reached using chemical agents. The long-term performance of full-depth flexible pavements with stabilized mixtures as subgrade was assessed in the AASHTOWare Pavement ME Design (commonly known as MEPDG) software. The life-cycle cost of flexible pavements with stabilized mixtures was estimated for a 40-year design period. Economic analysis results indicated that RCA was cost effective only if it was used with a combination of fly ash and Portland cement.
Book Synopsis Portland Cement Concrete Recycling by : R. Gordon McKeen
Download or read book Portland Cement Concrete Recycling written by R. Gordon McKeen and published by . This book was released on 1982 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Recycling of Portland Cement Concrete Pavement by : John B. Wojakowski
Download or read book Recycling of Portland Cement Concrete Pavement written by John B. Wojakowski and published by . This book was released on 1995 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Recycling of Portland Cement Concrete Pavements by : William A. Yrjanson
Download or read book Recycling of Portland Cement Concrete Pavements written by William A. Yrjanson and published by . This book was released on 1989 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Handbook of Recycled Concrete and Demolition Waste by : F. Pacheco-Torgal
Download or read book Handbook of Recycled Concrete and Demolition Waste written by F. Pacheco-Torgal and published by Elsevier. This book was released on 2013-09-30 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Evaluation of Recycled Concrete for Use as Aggregates in New Portland Cement Concrete Pavements by : Spencer Ray Boyle
Download or read book Evaluation of Recycled Concrete for Use as Aggregates in New Portland Cement Concrete Pavements written by Spencer Ray Boyle and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Trends in Eco-efficient and Recycled Concrete by : Jorge de Brito
Download or read book New Trends in Eco-efficient and Recycled Concrete written by Jorge de Brito and published by Woodhead Publishing. This book was released on 2018-11-16 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Trends in Eco-efficient and Recycled Concrete describes different recycled materials that have been used in eco-efficient concrete, reviewing previous publications to identify the most effective recycled materials to be applied in concrete manufacture. New trends on eco-efficient concrete are presented, filling a gap in the market. Sections cover various recycled materials applied in concrete production, present the latest on the lifecycle analysis of recycled aggregate concrete, detail new trends in recycled aggregate concrete research, and finally, present updates on upscaling the use of recycled aggregate concrete and structural reliability. - Focuses on new trends in recycled aggregate concrete and its applications (rather than the more subjective 'sustainability' aspects) - Contains very important contributions from researchers in eco-efficient concrete, including Chi Sun Poon, Jorge de Brito, Valeria Corinaldesi, Francisco Agrela, etc. - Presents a 'one stop' reference for a graduate course on sustainable construction
Book Synopsis Evaluation of Recycled Concrete for Use as Aggregates in New Concrete Pavements by : Daniel Gilbert Mjelde
Download or read book Evaluation of Recycled Concrete for Use as Aggregates in New Concrete Pavements written by Daniel Gilbert Mjelde and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recycled Aggregates by : Ravindra K Dhir
Download or read book Recycled Aggregates written by Ravindra K Dhir and published by ICE Publishing. This book was released on 2019-09-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Sustainable Recycled Materials for Concrete Pavements by : Prashant Ram
Download or read book Sustainable Recycled Materials for Concrete Pavements written by Prashant Ram and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research project, life-cycle cost analysis (LCCA) and environmental life-cycle assessment (ELCA) techniques are used to quantify the economic and environmental impacts for a selected number of MDOT concrete pavement sections. Pavements studied include those constructed with and without supplementary cementitious materials (SCMs), with and without crushed concrete aggregate (CCA), and with and without air-cooled blast furnace slag coarse aggregate (ACBFS).
Book Synopsis Advances in Construction and Demolition Waste Recycling by : F. Pacheco-Torgal
Download or read book Advances in Construction and Demolition Waste Recycling written by F. Pacheco-Torgal and published by Woodhead Publishing. This book was released on 2020-02-10 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Construction and Demolition Waste Recycling: Management, Processing and Environmental Assessment is divided over three parts. Part One focuses on the management of construction and demolition waste, including estimation of quantities and the use of BIM and GIS tools. Part Two reviews the processing of recycled aggregates, along with the performance of concrete mixtures using different types of recycled aggregates. Part Three looks at the environmental assessment of non-hazardous waste. This book will be a standard reference for civil engineers, structural engineers, architects and academic researchers working in the field of construction and demolition waste. - Summarizes key recent research in recycling and reusing concrete and demolition waste to reduce environmental impacts - Considers techniques for managing construction and demolition waste, including waste management plans, ways of estimating levels of waste, and the types and optimal location of waste recycling plants - Reviews key steps in handling construction and demolition waste
Book Synopsis Evaluation of Recycled Portland Cement Concrete Pavements for Base Course and Gravel Cushion Material by : Allen L. Cooley
Download or read book Evaluation of Recycled Portland Cement Concrete Pavements for Base Course and Gravel Cushion Material written by Allen L. Cooley and published by . This book was released on 2007 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Performance of Concrete Pavements Containing Recycled Concrete Aggregate by :
Download or read book Performance of Concrete Pavements Containing Recycled Concrete Aggregate written by and published by . This book was released on 1997 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis New Trends in Recycled Aggregate Concrete by : Jorge de Brito
Download or read book New Trends in Recycled Aggregate Concrete written by Jorge de Brito and published by MDPI. This book was released on 2019-07-15 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of a Special Issue published in Applied Sciences, entitled “New Trends in Recycled Aggregate Concrete". It identifies emerging research areas within the field of recycled aggregate concrete and contributes to the increased use of this eco-efficient material. Its contents are organised in the following sections: Upscaling the use of recycled aggregate concrete in structural design; Large scale applications of recycled aggregate concrete; Long-term behaviour of recycled aggregate concrete; Performance of recycled aggregate concrete in very aggressive environments; Reliability of recycled aggregate concrete structures; Life cycle assessment of recycled aggregate concrete; New applications of recycled aggregate concrete.
Book Synopsis Evaluation of Recycled Concrete as Aggregate in New Concrete Pavements by :
Download or read book Evaluation of Recycled Concrete as Aggregate in New Concrete Pavements written by and published by . This book was released on 2014 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
