Evaluation of Fly Ash in Portland Cement Concrete Paving in Woodbury County, Iowa PDF Download
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Author: C. E. Leonard
Publisher:
ISBN:
Category : Fly ash
Languages : en
Pages : 42
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Author: C. E. Leonard
Publisher:
ISBN:
Category : Fly ash
Languages : en
Pages : 42
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Author: Orville D. Ives
Publisher:
ISBN:
Category : Fly ash
Languages : en
Pages : 36
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Book Description
The primary objectives of this research project were: 1. Determine and recommend solutions for problems relating to shipping, storing and batching of fly ash. 2. Establish a procedure for batching, mixing and placing uniform concrete with specified air content and consistency. 3. Demonstrate that concrete of comparable quality can be produced.
Author: Sam G. Moussalli
Publisher:
ISBN:
Category :
Languages : en
Pages : 42
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Author: Bernard C. Brown
Publisher:
ISBN:
Category : Fly ash
Languages : en
Pages : 28
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The data gathered suggests that the present Class C water reduced concrete paving mixes can be modified to allow the substitution of 15% of the cement with an approved fly ash when Class 3 coarse aggregates are used.
Author: Vernon J. Marks
Publisher:
ISBN:
Category : Fly ash
Languages : en
Pages : 30
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Book Description
In 1982 the Iowa DOT allowed a successful bidder the option of submitting materials and proportions using fly ash to produce a portland cement concrete (PCC) paving mixture to meet a specified compressive strength. The contractor, Irving F. Jensen, received approval for the use of a concrete mixture utilizing 500 lbs. of portland cement and 88 lbs. of fly ash as a replacement of 88 lbs. of portland cement. The PCC mixture was utilized on the Muscatine County US 61 relocation bypass paved as project F-61-4(32)--20-70. A Class "C" fly ash obtained from the Chillicothe electric generating plant approximately 100 miles away was used in the project. This use of fly ash in lieu of portland cement resulted in a cost savings of $64,500 and an energy savings of approximately 16 billion BTU. The compressive strength of this PCC mixture option was very comparable to concrete mixtures produced without the use of fly ash. The pavement has been performing very well. The substitution of fly ash for 15% of the cement has been allowed as a contractor's option since 1984. Due to the cost savings, it has been used in almost all Iowa PCC paving since that time.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 446
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Author: Lawrence L. Sutter
Publisher: Transportation Research Board
ISBN: 0309283558
Category : Political Science
Languages : en
Pages : 91
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Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) 749: Methods for Evaluating Fly Ash for Use in Highway Concrete presents suggested changes to coal fly ash specifications and test protocols contained in American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications for Transportation Materials and Methods of Sampling and Testing (AASHTO M 295). The changes suggested include modifications to the test methods currently specified for evaluating acceptability of fly ash for use in highway concrete as well as the introduction of new test methods for enhancing such evaluations. Attachment C: Details of the Research into Methods for Evaluating Fly Ash Use in Highway Concrete is only available online."--Publisher description.
Author: S. Schlorholtz
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 180
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Author: Ken Isenberger
Publisher:
ISBN:
Category : Fly ash
Languages : en
Pages : 42
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Book Description
Effect of fly ash class, source and amount on the compressive strength and freeze-thaw durability of fly ash concrete.
Author: Michael J. Maloney
Publisher:
ISBN:
Category : Portland cement
Languages : en
Pages : 65
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Book Description
