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Use Of Entrained Air In Portland Cement Concrete
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Book Synopsis Use of Entrained Air in Portland Cement Concrete by : Construction Technology Laboratories (Portland Cement Association)
Download or read book Use of Entrained Air in Portland Cement Concrete written by Construction Technology Laboratories (Portland Cement Association) and published by . This book was released on 1982 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Road Problems written by and published by . This book was released on 1957 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory of Air Entrainment by : Abdul Hameed Khan
Download or read book Theory of Air Entrainment written by Abdul Hameed Khan and published by . This book was released on 1949 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Portland Cement Concrete Materials Manual by :
Download or read book Portland Cement Concrete Materials Manual written by and published by . This book was released on 1989 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Building Construction by : B. C. Punmia
Download or read book Building Construction written by B. C. Punmia and published by . This book was released on 2008-04 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Air Entrainment in Concrete by : American Concrete Institute
Download or read book Air Entrainment in Concrete written by American Concrete Institute and published by . This book was released on 1947 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Manual on Control of Air Content in Concrete by : David Whiting
Download or read book Manual on Control of Air Content in Concrete written by David Whiting and published by . This book was released on 1998 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Synthetic Air Entraining Agents on Compressive Strength of Portland Cement Concrete by :
Download or read book Effects of Synthetic Air Entraining Agents on Compressive Strength of Portland Cement Concrete written by and published by . This book was released on 2001 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document reports the results of a comprehensive study pertaining to the determination of causes and mechanisms resulting in a reduction of strength in concrete mixtures containing Synthetic air entraining admixtures. The study involved experimentation with concrete mixtures containing both the Synthetic and Vinsol resin admixtures. Tests involved determination of air content for fresh concrete and air bubble characteristics including size and distribution for hardened concrete. Compressive strength of concrete samples were determined at ages 7, 14, 28 and 56 days.
Book Synopsis Pore Structure of Cement-Based Materials by : Kalliopi K. Aligizaki
Download or read book Pore Structure of Cement-Based Materials written by Kalliopi K. Aligizaki and published by CRC Press. This book was released on 2005-09-22 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pore Structure of Cement-Based Materials provides a thorough treatment of the experimental techniques used to characterize the pore structure of materials. The text presents the principles and practical applications of the techniques used, organized in an easy-to-follow and uncomplicated manner, providing the theoretical background, the way to analyze experimental data, and the factors affecting the results. The book is the single comprehensive source of the techniques most commonly used for pore structure analysis, covering simple techniques like mercury intrusion porosimetry and water absorption, to the more sophisticated small-angle scattering and nuclear magnetic resonance. The book is an essential reference text for researchers, users, and students in materials science, applied physics, and civil engineering, who seek a deep understanding of the principles and limitations of the techniques used for pore structure analysis of cement-based materials.
Book Synopsis Properties of Air Bubbles in Air Entrained Concrete by : Le Tuan Pham
Download or read book Properties of Air Bubbles in Air Entrained Concrete written by Le Tuan Pham and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is widely accepted that air entrainment, a purposeful introduction of small air bubbles in concrete, is critical to the long-term durability of concrete in freeze-thaw environments. Air entraining admixtures (AEA) are added to the mixture to stabilize air bubbles created during mixing, ensuring a proper air void system in the hardened concrete. Despite the complexity of creating a suitable air void system in concrete, previous study and experience established the reliability and robustness of such systems under a variety of conditions through use of neutralized vinsol resin (NVR) AEA products. In recent years, synthetic AEAs have been used more frequently due to limited supply of NVR to the concrete industry. With the use of synthetic AEAs, there are more reports of new problems including difficulties in accurately measuring the air content. This study was conducted to find the root cause of the increasing difficulties in controlling the air contents in portland cement concrete associated with synthetic AEAs. Main challenges included the lack of existing techniques to evaluate AEAs and air bubbles in concrete, and lack of data to help identify causes. Given these challenges, a multi-scale experimental study that included testing of field and laboratory concrete, and testing of foam and individual air bubbles was undertaken. The results indicate that the disparity between QC test results and the actual air contents in concrete pavements associated with the use of synthetic AEAs could be attributed to less robust air bubbles stabilized with synthetic AEAs compared to those entrained with NVR and the resulting increased loss of these air bubbles during concrete sampling. The cause of this decreased robustness and resulting air loss was traced directly to the properties of the bubble shells. The shells of air bubbles in concrete entrained with synthetic AEAs were thinner and less stiff than those associated with an NVR AEA. Through this research new test protocols were developed to measure stiffness and thickness of the shell of air bubbles extracted from cement paste and to quantify stability of foams of AEAs in a cementitious environment. These tests could be used by researchers and practitioners who are interested in developing new admixtures and/or identifying admixtures with undesirable performance.
Book Synopsis Principles of Quality Concrete by : Portland Cement Association
Download or read book Principles of Quality Concrete written by Portland Cement Association and published by John Wiley & Sons. This book was released on 1975 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Science and Technology of Concrete Admixtures by : Pierre-Claude Aïtcin
Download or read book Science and Technology of Concrete Admixtures written by Pierre-Claude Aïtcin and published by Woodhead Publishing. This book was released on 2015-11-12 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science and Technology of Concrete Admixtures presents admixtures from both a theoretical and practical point-of-view. The authors emphasize key concepts that can be used to better understand the working mechanisms of these products by presenting a concise overview on the fundamental behavior of Portland cement and hydraulic binders as well as their chemical admixtures, also discussing recent effects in concrete in terms of rheology, mechanics, durability, and sustainability, but never forgetting the fundamental role played by the water/binder ratio and proper curing in concrete technology. Part One presents basic knowledge on Portland cement and concrete, while Part Two deals with the chemical and physical background needed to better understand what admixtures are chemically, and through which mechanism they modify the properties of the fresh and hardened concrete. Subsequent sections present discussions on admixtures technology and two particular types of concrete, self-consolidating and ultra-high strength concretes, with final remarks on their future. Combines the knowledge of two leading authors to present both the scientific and technology of admixtures Explains what admixtures are from a chemical point-of-view and illustrates by which mechanisms they modify the properties of fresh and hardened concrete Presents a fundamental, practical, and innovative reference book on the topic Contains three detailed appendices that can be used to learn how to use admixtures more efficiently
Book Synopsis Design Methods for Air-entrained Portland Cement Concrete and Ready-mixed Portland Cement Concrete by :
Download or read book Design Methods for Air-entrained Portland Cement Concrete and Ready-mixed Portland Cement Concrete written by and published by . This book was released on 1996 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entrained Air written by and published by . This book was released on 1946 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Pennsylvania. Department of Transportation. Bureau of Construction and Materials Publisher : ISBN 13 : Total Pages : pages Book Rating :4.:/5 (217 download)
Book Synopsis Design Methods for Air-entrained Portland Cement Concrete and Ready-mixed Portland Cement Concrete by : Pennsylvania. Department of Transportation. Bureau of Construction and Materials
Download or read book Design Methods for Air-entrained Portland Cement Concrete and Ready-mixed Portland Cement Concrete written by Pennsylvania. Department of Transportation. Bureau of Construction and Materials and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Entrained Air on the Strength Permeability and Durability of Concrete by : Leonard Jerome Czyzewski
Download or read book Effect of Entrained Air on the Strength Permeability and Durability of Concrete written by Leonard Jerome Czyzewski and published by . This book was released on 1949 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Proposed Method for Measuring Entrained Air in Portland Cement Concrete by : P. H. Petersen
Download or read book Evaluation of Proposed Method for Measuring Entrained Air in Portland Cement Concrete written by P. H. Petersen and published by . This book was released on 1952 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
