Testing Aggregates Method For Determination Of Soundness
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Author | : |
Publisher | : |
Total Pages | : 112 |
Release | : 2013 |
Genre | : Aggregates (Building materials) |
ISBN | : |
Approximately 10 to 11 million tons of aggregates are utilized in transportation infrastructure projects in Wisconsin annually. The quality of aggregates has a tremendous influence on the performance and durability of roadways and bridges. In this Phase II research study, detailed statistical analyses were performed on over 1,000 sets of historical aggregate test results and the experimental results from the Phase I study. Test results from other states were analyzed as well. Aggregate tests were performed on 12 known marginal or poor Wisconsin aggregates to specifically address test performance of such aggregates. Selected aggregates were scanned using X-ray computed tomography to assess the effects of freeze-thaw and sodium sulfate exposure on the internal void system. The results of multi-parameter logistic regression analyses show that the pass/fail outcomes of the Micro-Deval test can be predicted when LA abrasion, absorption, and sodium sulfate soundness test results are known. The unconfined freeze-thaw test outcomes cannot be predicted from results of other tests (not correlated). Therefore, the unconfined freeze-thaw test should be part of any test protocol as it measures an aggregate characteristic that cannot be obtained from other tests. The percentiles associated with any proposed acceptance threshold limits for various aggregate tests should be determined using the statistical data provided.
Author | : |
Publisher | : |
Total Pages | : 112 |
Release | : 2005 |
Genre | : Aggregates (Building materials) |
ISBN | : |
Author | : Robert N Hunter |
Publisher | : Thomas Telford |
Total Pages | : 596 |
Release | : 2000-09 |
Genre | : Technology & Engineering |
ISBN | : 9780727727800 |
This is a useful guide to all facets of asphalt technology as applied to the construction and maintenance of highways and reflects the very best of UK asphalt and pavement technology. It covers all aspects of fully flexible road construction from foundation design through to surface treatment. The book also covers new materials.
Author | : J Cliff Nicholls |
Publisher | : CRC Press |
Total Pages | : 425 |
Release | : 2002-11-01 |
Genre | : Architecture |
ISBN | : 0203477634 |
Asphalt Surfacings has been written as a reference to the various asphalt course materials and surfacing treatments that are currently available to engineers, enabling them to select the materials and/or treatment that are appropriate for use on specific sites. Appropriate reference is made to the lower structural layers as the properties of all layers interact in producing the required pavement. The current established position in the UK and the emerging developments throughout the UK and Europe are covered. The contributors are all acknowledged authorities on their particular topics selected from every part of the highway engineering industry to achieve a balance between the various approaches required by the different functions they perform.
Author | : Richard Thomas Lingen Allen |
Publisher | : Thomas Telford |
Total Pages | : 330 |
Release | : 1998 |
Genre | : Coastal engineering |
ISBN | : 9780727726100 |
Describing the nature of the marine environment and the effects of man-made structures on the behaviour of the sea, this books deals with hydraulic design, the material properties of concrete and the design and specification of structures for coastal environments.
Author | : American Society for Testing and Materials |
Publisher | : |
Total Pages | : 1034 |
Release | : 1922 |
Genre | : Engineering |
ISBN | : |
Vols. 61-66 include technical papers.
Author | : R.H. Jones |
Publisher | : Butterworth-Heinemann |
Total Pages | : 437 |
Release | : 2016-04-20 |
Genre | : Technology & Engineering |
ISBN | : 1483163210 |
Unbound Aggregates in Roads contains the proceedings of the International Symposium on Unbound Aggregates in Roads (UNBAR3) held at the University of Nottingham, England, on April 11-13, 1989. The papers focus on unbound aggregates used in road construction and cover topics ranging from drainage and permeability to placement and compaction of unbound aggregates, design philosophy, specification, and compliance. This book consists of 49 chapters divided into eight sections and opens with an overview of the functions of unbound aggregates in roads, followed by a discussion on the mechanical properties of different aggregates and theoretical aspects of granular materials. The following chapters focus on granular drainage layers in pavement foundations; residual stresses caused by compaction in granular materials; and alternative materials for road construction such as steel slags and natural and waste materials. The use of unbound road aggregates in various countries such as Italy, France, Germany, and Portugal is also considered. This monograph will be a useful resource for designers, aggregate producers, contractors, specification writers, and materials engineers.
Author | : Peter Hewlett |
Publisher | : Elsevier |
Total Pages | : 1087 |
Release | : 2003-11-12 |
Genre | : Technology & Engineering |
ISBN | : 0080535410 |
Lea's Chemistry of Cement and Concrete deals with the chemical and physical properties of cements and concretes and their relation to the practical problems that arise in manufacture and use. As such it is addressed not only to the chemist and those concerned with the science and technology of silicate materials, but also to those interested in the use of concrete in building and civil engineering construction. Much attention is given to the suitability of materials, to the conditions under which concrete can excel and those where it may deteriorate and to the precautionary or remedial measures that can be adopted. First published in 1935, this is the fourth edition and the first to appear since the death of Sir Frederick Lea, the original author. Over the life of the first three editions, this book has become the authority on its subject. The fourth edition is edited by Professor Peter C. Hewlett, Director of the British Board of Agrement and visiting Industrial Professor in the Department of Civil Engineering at the University of Dundee. Professor Hewlett has brought together a distinguished body of international contributors to produce an edition which is a worthy successor to the previous editions.
Author | : Alan Poole |
Publisher | : CRC Press |
Total Pages | : 778 |
Release | : 2016-12-19 |
Genre | : Architecture |
ISBN | : 1466583827 |
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 | : George Earl Troxell |
Publisher | : Stanford University Press |
Total Pages | : 164 |
Release | : 1938 |
Genre | : Concrete |
ISBN | : |