Evaluation of Hydraulic Cement Concretes Containing Slag Added at the Mixer PDF Download
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Author: Hamdi Celik Ozyildirim
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 46
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Book Description
The study evaluated the effect of ground, granulated, iron slags on the properties of hydraulic cement concretes such as normally used in highway construction. Two cements with different alkali contents and two slags with different activity indices, 100 and 120, were used. Slags were used as replacements for portions of Portland cement at 40%, 50%, and 65% by weight. This final report presents data on the properties of the freshly mixed concrete and the test results on time of set, heat of hydration, compressive strength, flexural strength, permeability, resistance to freezing and thawing, length change values, and the results of petrographic examinations including data on air voids, carbonation, and hydration. The test results for the laboratory specimens indicate that mixtures with the slags exhibit delay in set and slower development of compressive strength early ages than do conventional mixtures, but have equal or better strengths at Later ages. The incorporation of slag reduces the permeability of concrete considerably. It is concluded from this study that concretes in which up to 50% by weight of the cement has been replaced with a slag meeting the requirements of ASTM C989 and having a minimum activity index of 100 are satisfactory for use in highway construction.
Author: Hamdi Celik Ozyildirim
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 46
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Book Description
The study evaluated the effect of ground, granulated, iron slags on the properties of hydraulic cement concretes such as normally used in highway construction. Two cements with different alkali contents and two slags with different activity indices, 100 and 120, were used. Slags were used as replacements for portions of Portland cement at 40%, 50%, and 65% by weight. This final report presents data on the properties of the freshly mixed concrete and the test results on time of set, heat of hydration, compressive strength, flexural strength, permeability, resistance to freezing and thawing, length change values, and the results of petrographic examinations including data on air voids, carbonation, and hydration. The test results for the laboratory specimens indicate that mixtures with the slags exhibit delay in set and slower development of compressive strength early ages than do conventional mixtures, but have equal or better strengths at Later ages. The incorporation of slag reduces the permeability of concrete considerably. It is concluded from this study that concretes in which up to 50% by weight of the cement has been replaced with a slag meeting the requirements of ASTM C989 and having a minimum activity index of 100 are satisfactory for use in highway construction.
Author: Lawrence J. Kaetzel
Publisher:
ISBN:
Category : Expert systems (Computer science)
Languages : en
Pages : 274
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Book Description
Author: Harry T. Craft
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 428
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Book Description
Author:
Publisher:
ISBN:
Category : Recycling (Waste, etc.)
Languages : en
Pages : 328
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Book Description
Author:
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 424
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Book Description
Author: Michael M. Sprinkel
Publisher: Strategic Highway Research Program (Shrp)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 124
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Book Description
This report presents the rapid methods used by state highway agencies for the protection, repair and rehabilitation of bridge decks. The report is based on a review of the literature; the responses to questionnaires sent to state departments of transportation, Canadian provinces, selected turnpike and thruway authorities, technology transfer centers, and material suppliers; and the evaluation of 50 bridge decks located in seven states. Polymer overlays, sealers, high-early strength hydraulic cement concrete overlays, and patches are compared for their performance characteristics and service life.
Author: Caijun Shi
Publisher: CRC Press
ISBN: 0203390679
Category : Architecture
Languages : en
Pages : 388
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Book Description
The first English-language book which reviews and summarizes worldwide research advances in alkali-activated cements and concrete. Essential topics include: raw materials and their properties for the production of the two new types of binder the hydration and microstructure development of alkali-activated slag cements the mechanical properties and durability of alkali-activated slag cement and concrete other various cementing systems and their applications related standards and specifications. This respected team of authors has produced an important piece of research that will be of great interest to professionals and academics alike, enabling the production of more durable and environmentally sensitive materials.
Author:
Publisher:
ISBN:
Category : Coal trade
Languages : en
Pages : 868
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Book Description
Vol. 115 includes Diamond jubilee issue, 1867-1927.
Author: Waterways Experiment Station (U.S.) Structures Laboratory
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 616
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Book Description
Author: Ravindra K. Dhir
Publisher: Thomas Telford
ISBN: 9780727728333
Category : Technology & Engineering
Languages : en
Pages : 268
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Book Description
Concrete will be the key material for Mankind to create the built environment of the next millennium. The requirements of this infrastructure will be both demanding, in terms of technical performance and economy, and yet be greatly varied, from architectural masterpieces to the simplest of utilities.This volume is a compilation of the Opening Addresses and Leader Papers for the five Conferences and fove Seminars held during the Congress, Creating with Concrete, 6-10 September 1999, organised by the Concrete Technology Unit, University of Dundee.
