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Author : John D. Squires
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (195 download)
Download or read book Examination of Microscopic Air-void Parameters in Portland Cement Concrete written by John D. Squires and published by . This book was released on 1988 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Basil Mark Harris
Publisher :
ISBN 13 :
Total Pages : 864 pages
Book Rating : 4.E/5 ( download)
Download or read book Microscopic Air Void Analysis of Hardened Portland Cement Concrete by the Isolated Shadow Technique written by Basil Mark Harris and published by . This book was released on 1998 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph F. Lamond
Publisher : ASTM International
ISBN 13 : 0803133677
Total Pages : 661 pages
Book Rating : 4.8/5 (31 download)
Download or read book Significance of Tests and Properties of Concrete and Concrete-making Materials written by Joseph F. Lamond and published by ASTM International. This book was released on 2006 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lokman Ng
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (656 download)
Download or read book Studying Air Properties in Hardened Portland Cement Concrete with Linear Traverse Method written by Lokman Ng and published by . This book was released on 2010 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air void structure in hardened concrete is critical to its durability. This project mainly focuses on investigating the air void system in hardened concrete with the microscopic analysis Linear Traverse Method specified by ASTM Specification C457-08 (Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete). To understand the stability of the air void system in concrete, the same concrete mixes were examined with two other methods, pressure meter measurement and Air-Void Analyzer, under fresh state. The comparison of the results from the three methods for fresh and hardened concrete shows that properties of concrete vary in samples within the same batch with the same mix design, samples in different batches of the same mix design and samples with different mix designs. The measured air content from Linear Traverse Method and pressure meter are fairly close to each other, while Air-Void Analyzer measured air content is observed to be lower than that from Linear Traverse Method. The measured spacing factor from Air-Void Analyzer is observed to be higher than that from Linear Traverse Method, while the measured specific surface from Air-Void Analyzer is observed to be lower than that from Linear Traverse Method. However, no strong correlation in the measured air content and measured specific surface between Linear Traverse and Air-Void Analyzer is observed.
Author : Wade H. Shafer
Publisher : Springer Science & Business Media
ISBN 13 : 1461534747
Total Pages : 421 pages
Book Rating : 4.4/5 (615 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 34 (thesis year 1989) a total of 13,377 theses titles from 26 Canadian and 184 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 34 reports theses submitted in 1989, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Author : Alan B. Poole
Publisher : CRC Press
ISBN 13 : 1351722336
Total Pages : 793 pages
Book Rating : 4.3/5 (517 download)
Download or read book Concrete Petrography written by Alan B. Poole and published by CRC Press. This book was released on 2016-12-19 with total page 793 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic reference has established the value of petrography as a powerful method for the investigation of concrete as a material. It provides an authoritative and well-illustrated review of concrete composition and textures, including the causes of defects, deterioration, and failure that can be identified using a petrological microscope. This new edition is entirely revised and updated and also greatly extended to take account of new scientific developments and significant improvements in instrumentation and to reflect current laboratory working practices, as well as to reflect new understanding of the performance of concrete and related materials. Now in full color throughout, Concrete Petrography, Second Edition provides case study examples, with appropriate explanatory discussions and practical advice on selecting, handling and preparing specimens. It assists and guides the engineer, the trainee and the experienced petrographer in understanding the scientific evidence that is basic to petrographic analysis and so will lead to more accurate and timely diagnosis and treatment of problems in structural concrete. This book includes: Contributions in specialist areas by internationally recognized experts Explanation of computer techniques as an aid to petrography Full coverage of inspection, sampling, and specimen preparation New sections covering recent technological development of equipment Guidance on observation of cement and concrete mineralogy and microfabrics Discussion and illustrative examples of deterioration and failure mechanisms New work and guidance on the determination of water/cement ratio New color illustrations and micrographs throughout Thorough updating of standards, other authoritative publications, and references A fully revised, extended, and updated glossary of optical and other properties
Author : Paul Klieger
Publisher : ASTM International
ISBN 13 : 0803120532
Total Pages : 621 pages
Book Rating : 4.8/5 (31 download)
Download or read book Significance of Tests and Properties of Concrete and Concrete-making Materials written by Paul Klieger and published by ASTM International. This book was released on 1994 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas John Van Dam
Publisher : Transportation Research Board
ISBN 13 : 0309088356
Total Pages : 38 pages
Book Rating : 4.3/5 (9 download)
Download or read book Guidelines for Early-opening-to-traffic Portland Cement Concrete for Pavement Rehabilitation written by Thomas John Van Dam and published by Transportation Research Board. This book was released on 2005 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Steven M. Cramer
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (1 download)
Download or read book Deicer-freezer-thaw Resistance Characteristics of Portland Cement Concrete for Wisconsin Pavements written by Steven M. Cramer and published by . This book was released on 1995 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (891 download)
Download or read book Field Study of Air Content Stability in the Slipform Paving Process written by and published by . This book was released on 2012 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluated the impacts of construction on the air content and air-void system structure of Portland cement concrete pavements. The primary intent was to quantify the air content of fresh concrete before and after it has gone through the slipform paver. The air-void system parameters of hardened concrete were then assessed using cast and extracted core specimens. The results of the air content testing on fresh concrete and the concrete cylinder specimens cast in the field suggested that there is some loss of air as the concrete passes through the paver. Laboratory testing performed on cores extracted from the pavement did not provide any conclusive evidence that entrained air is lost during the slipform paving process. In fact, many of the extracted cores had measured air content values that were much higher than the specification requirement. If excessive, this could result in increased permeability and low-strength related issues. Although a rigorous statistical analysis was not performed, the results suggest that the air content testing on fresh concrete is not capturing the true air content of the concrete placed with a slipform paver. The fresh concrete air content is generally lower than the air content measured in the cores.
Author :
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (359 download)
Download or read book Study of D-cracking in Portland Cement Concrete Pavement written by and published by . This book was released on 1994 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kalliopi K. Aligizaki
Publisher : CRC Press
ISBN 13 : 9780419228004
Total Pages : 442 pages
Book Rating : 4.2/5 (28 download)
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.
Author : James K. Cable
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (1 download)
Download or read book Effect of Mix Times on PCC Properties written by James K. Cable and published by . This book was released on 1998 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this research were the collection and evaluation of the data pertaining to the importance of concrete mixing time on air content and distribution, consolidation and workability for pavement construction. American Society for Testing and Materials (ASTM) standard C 94 was used to determine the significance of the mixing time on the consistency of the mix being delivered and placed on grade. Measurements of unit weight, slump, air content, retained coarse aggregate and compressive strength were used to compare the consistency of the mix in the hauling unit at the point of mixing and at the point placement. An analysis of variance was performed on the data collected from the field tests. Results were used to establish the relationship between selected mixing time and the portland cement concrete properties tested. The results were also used to define the effect of testing location (center and side of truck, and on the grade) on the concrete properties. Compressive strength test concepts were used to analyze the hardened concrete pavement strength. Cores were obtained at various locations on each project on or between vibrator locations to evaluate the variance in each sample, between locations, and mixing times. A low-vacuum scanning electron microscope (SEM) was used to study air void parameters in the concrete cores. Combining the data from these analysis thickness measurements and ride in Iowa will provide a foundation for the formulation of a performance based matrix. Analysis of the air voids in the hardened concrete provides a description of the dispersion of the cemtitious materials (specifically flyash) and air void characteristics in the pavement. Air void characteristics measured included size, shape and distribution.
Author :
Publisher :
ISBN 13 :
Total Pages : 804 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author : Lawrence J. Kaetzel
Publisher :
ISBN 13 :
Total Pages : 274 pages
Book Rating : 4.:/5 (359 download)
Download or read book Expert/knowledge-based Systems for Cement and Concrete written by Lawrence J. Kaetzel and published by . This book was released on 1991 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)
Download or read book Special Report written by and published by . This book was released on 1990 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council (U.S.). Highway Research Board
Publisher :
ISBN 13 :
Total Pages : 428 pages
Book Rating : 4.E/5 ( download)
Download or read book Special Report written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1964 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
