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Author : Ravi Gadhi
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (484 download)
Download or read book Optimization of Fly Ash Content in Bridge Deck Concrete written by Ravi Gadhi and published by . This book was released on 2001 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Soma Sundar Srinivasa Murthy
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (484 download)
Download or read book Optimization of High Performance Fly Ash Concrete for Bridge Deck Overlay and Effect of Air Content on Permeability of Concrete written by Soma Sundar Srinivasa Murthy and published by . This book was released on 2001 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John S. Lawler
Publisher : Transportation Research Board
ISBN 13 : 0309098971
Total Pages : 130 pages
Book Rating : 4.3/5 (9 download)
Download or read book Guidelines for Concrete Mixtures Containing Supplementary Cementitious Materials to Enhance Durability of Bridge Decks written by John S. Lawler and published by Transportation Research Board. This book was released on 2007 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: NCHRP Report 566 is designed to help facilitate the use of supplementary cementitious materials to enhance durability of concrete used in highway construction, especially bridge decks. The report includes a methodology for selecting optimum concrete mixture proportions that focuses on durability aspects of concrete and the performance requirements for specific environmental conditions. The methodology is presented in a text format and as a computational tool, in the form of a Visual Basic?driven Microsoft Excel spreadsheet. Background information and a hypothetical case study was published as NCHRP Web-Only Document 110: Supplementary Cementitious Materials to Enhance Durability of Concrete Bridge Decks. The Statistical Experimental Design for Optimizing Concrete (SEDOC), the computational tool for the concrete mixture optimization methodology, and the user?s guide are available in a ZIP format for download.
Author :
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (933 download)
Download or read book Optimization of Fly Ash Replacement in High Volume Fly Ash Concrete written by and published by . This book was released on 1991 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes research performed to determine the optimum fly ash content in the high volume system. Optimum is defined as the fly ash content for a given water-cementitious ratio which produces the most economical concrete on the basis of cost per MPa. Three series of concrete mixtures were evaluated. Mixtures were performed at a water cementitious ratio of 0.25, 0.27 and 0.32 at fly ash replacement (based on total cementitious) of 50, 55, 60 and 65 percent. The fly ash content varied from 45 to 60 percent for these tests. Materials included Portland cement; low calcium fly ash from the coal fired thermal generating plant in Lingan, NS; coarse aggregate from a Halifax quarry; fine aggregate (natural sand); superplasticizer; air-entraining mixtures; and concrete mixtures. Compressive strength specimens were cast for laboratory storage and testing at 3, 7, 28, and 91 days. Three specimens were tested at each age.
Author : M. D. A. Thomas
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (213 download)
Download or read book Optimizing the Use of Fly Ash in Concrete written by M. D. A. Thomas and published by . This book was released on 2007 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The optimum amount of fly ash varies not only with the application, but also with composition and proportions of all the materials in the concrete mixture (especially the fly ash), the conditions during placing (especially temperature), construction practices (for example, finishing and curing) and the exposure conditions. This document discusses issues related to using low to very high levels of fly ash in concrete and provides guidance for the use of fly ash without compromising the construction process or the quality of the finished product. The nature of fly ashes including their physical, mineralogical and chemical properties is covered in detail, as well as fly ash variability due to coal composition and plant operating conditions. A discussion on the effects of fly ash characteristics on fresh and hardened concrete properties includes; workability, bleeding, air entrainment, setting time, heat of hydration, compressive strength development, creep, drying shrinkage, abrasion resistance, permeability, resistance to chlorides, alkali-silica reaction (ASR), sulfate resistance, carbonation, and resistance to freezing and thawing and deicer salt scaling. Case studies were selected as examples of some of the more demanding applications of fly ash concrete for ASR mitigation, chloride resistance, and green building.
Author : K. Wesche
Publisher : CRC Press
ISBN 13 : 0203626419
Total Pages : 298 pages
Book Rating : 4.2/5 (36 download)
Download or read book Fly Ash in Concrete written by K. Wesche and published by CRC Press. This book was released on 2004-03-01 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a state-of-the-art report which documents current knowledge on the properties of fly ash in concrete and the use of fly ash in construction. It includes RILEM Recommendations on fly ash in concrete and a comprehensive bibliography including over 800 references.
Author : Prakash M. Hundekar
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (57 download)
Download or read book Performance of Optimized Fly Ash and Control Bridge Deck and Bridge Deck Overlay Concretes written by Prakash M. Hundekar and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimization of Fly-ash-based Concrete Formulations written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 43 pages
Book Rating : 4.:/5 (183 download)
Download or read book Evaluation of Fly Ash in Bridge Deck Concrete written by and published by . This book was released on 1985 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The data obtained suggested that the present Class D-57 structural concrete mix with retarding admixtures can be modified to allow the substitution of 15% of the cement with an approved fly ash when Class III coarse aggregates are used.
Author : Chandrasekhar Neelamraju
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (57 download)
Download or read book Drying Shrinkage, Creep and Creep Recovery Characteristics of Optimized Fly Ash and Control Bridge Deck and Bridge Deck Overlay Concretes written by Chandrasekhar Neelamraju and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Srinvas Sathyanarayan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (57 download)
Download or read book Alkali-aggregate Reactivity and Bond Strength Performance of the Optimized Fly Ash Bridge Deck and Bridge Deck Overlay Concretes written by Srinvas Sathyanarayan and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (79 download)
Download or read book Experimental use of fly ash concrete in prefabricated bridge deck slabs written by and published by . This book was released on 1987 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydraulic cement concretes with and without fly ash were investigated to assess the suitability of using fly ash in bridge-deck concrete. Eight prefabricated concrete slabs were prepared: four were control and the remaining contained fly ash. They were used for widening two bridge structures. Slump, air content, and unit weight were determined on the freshly mixed concrete; compressive strength, permeability, absorption, freezing and thawing durability, and the air void system were determined for the hardened concrete. Depth of cover over the reinforcing steel was measured. After three winters of exposure, slabs were surveyed visually for cracks, scaling, and spalls. Half-cell readings were taken, and chloride samples obtained and tested. Fly ash concretes required a larger amount of air-entraining admixture than the controls to achieve the required air content. Although the 28-day strength tests showed that three of the four fly ash concretes did not achieve the required strength of 4,000 psi, the strength of all concretes exceeded 4,800 psi at 6 months when moist cured. The field evaluation after 3 years of winter exposure indicates that all concretes with fly ash are performing satisfactorily.
Author : Aaron Martin Crowley
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (127 download)
Download or read book High Volume Fly Ash in Portland Cement Concrete for Bridge Decks written by Aaron Martin Crowley and published by . This book was released on 2012 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lieska Carrillo
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (52 download)
Download or read book Optimization of Concrete Mixes with High Volume of Fly Ash written by Lieska Carrillo and published by . This book was released on 2002 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. E. Berry
Publisher : Energy, Mines and Resources Canada : CANMET, Canadian Centre for Mineral and Energy Technology
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (318 download)
Download or read book Fly Ash in Concrete written by E. E. Berry and published by Energy, Mines and Resources Canada : CANMET, Canadian Centre for Mineral and Energy Technology. This book was released on 1986 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a state-of-the-art review of the principaladvances in research, development, and practical application offly ash in concrete that have been made during the period 1976to 1984. Recommendations are made with regard to aspects of flyash concrete technology requiring further research.
Author : Douglas R. Benjamin
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (424 download)
Download or read book Fly Ash Optimization written by Douglas R. Benjamin and published by . This book was released on 1999 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dietmar Lutze
Publisher : Verlag Bau+Technik
ISBN 13 : 3764005378
Total Pages : 176 pages
Book Rating : 4.7/5 (64 download)
Download or read book Handbook on fly ash in concrete written by Dietmar Lutze and published by Verlag Bau+Technik. This book was released on 2013-03-20 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: When used as an addition and binder component, fly ash has become an indispensable construction material for many concrete applications. The conditions produced in power stations when firing fine pulverized coal result in the formation of a reactive, flour-fine, pozzolanic mineral material from the accompanying rock in the coal. Owing to its specific characteristics it has a positive impact on the properties of fresh and hardened concrete and facilitates cost-effective production of high-grade, durable concretes. The authors of this handbook have combined the latest discoveries from the field of research with practical experience of the use and effects of fly ash in concrete. This handbook provides the necessary information and makes interesting suggestions for selective use of fly ash in concrete.
