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A Direct Tensile Strength Testing Method For Unsaturated Geomaterials
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Book Synopsis A Direct Tensile Strength Testing Method for Unsaturated Geomaterials by : H. Nahlawi
Download or read book A Direct Tensile Strength Testing Method for Unsaturated Geomaterials written by H. Nahlawi and published by . This book was released on 2004 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current paper presents a new method for testing direct tensile strength of unsaturated geomaterials, guided by a method developed for concrete testing (Hannant et al. 1999). The developed equipment is used for measurement of direct tensile strength of unsaturated reactive basaltic clay soils and crushed rocks stabilized with cementitious additives. The tensile characteristics of soils were tested at water contents in excess of liquid limit and those close to optimum water content. Stabilized crushed rocks were tested at early and cured states after mixing. Full stress-strain characteristics were measured with the aid of precision transducers and electronic data acquisition. The equipment is capable of measuring tensile strengths of soil slurries (about 1 kPa), as well as cement stabilized crushed rocks (up to about 1 MPa).
Book Synopsis Laboratory Tests for Unsaturated Soils by : Eng-Choon Leong
Download or read book Laboratory Tests for Unsaturated Soils written by Eng-Choon Leong and published by CRC Press. This book was released on 2023-02-16 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The testing of unsaturated soils requires greater care and effort than that of saturated soils. Although unsaturated soil mechanics has been embraced by geotechnical engineering, engineering practice has not yet caught up as the characterization of unsaturated soils is difficult and time-consuming, and made harder still by a lack of standards. Laboratory Tests for Unsaturated Soils collates test procedures to cover all laboratory tests for characterising unsaturated soils. It covers the background, theory, test procedures, and interpretation of test results. Each test procedure is broken down into simple stages and described in detail. The pitfalls of each test and the interpretation of the test results are explained. Test data and calculation methods are given, along with many numerical examples to illustrate the methods of interpretation and to offer the presentation of typical results. The book is especially useful for students and researchers who are new to the field and provides a practical handbook for engineering applications.
Book Synopsis Unsaturated Soil Mechanics - from Theory to Practice by : Zhenghan Chen
Download or read book Unsaturated Soil Mechanics - from Theory to Practice written by Zhenghan Chen and published by CRC Press. This book was released on 2015-10-14 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decades advances have been made in the research and practice on unsaturated soil mechanics. In 2000 the first Asia-Pacific Conferences on Unsaturated Soils was organized in Singapore. Since then, four conferences have been held under the continued support of the Technical Committee on Unsaturated Soils (TC106) of the International Socie
Book Synopsis A Tensile Strength Apparatus with the Facility to Monitor Negative Pore-Water Pressure by : Ian Murray
Download or read book A Tensile Strength Apparatus with the Facility to Monitor Negative Pore-Water Pressure written by Ian Murray and published by . This book was released on 2019 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This article presents a new testing method for investigating the behavior of clayey geomaterials subjected to a tensile (negative) total stress. The method includes the use of high-capacity tensiometers to measure the porewater pressure of the test specimen, an aspect which has not been demonstrated in any other direct tensile testing method. This addition allows interpretation of failure data in terms of effective stress rather than total stress, which is the approach that should be pursued in the saturated range. The test specimen shape and loading method have been modified from those commonly seen in existing literature to ensure that the direction of the major principal stress in the failure zone coincides with the direction of the externally applied tensile force, allowing for a more accurate analysis of tensile failure. Results are shown for saturated specimens and compared to results obtained for the same soil in uniaxial compression, using a modified version of the presented uniaxial tensile method, and a triaxial compression test. It is demonstrated that crack initiation occurs by shear failure if the data are interpreted in terms of effective stress rather than total stress and that the failure mechanisms under tension do not differ from compression.
Book Synopsis Unsaturated Soils: Research & Applications by : Nasser Khalili
Download or read book Unsaturated Soils: Research & Applications written by Nasser Khalili and published by CRC Press. This book was released on 2014-06-05 with total page 1872 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unsaturated Soils: Research and Applications contains 247 papers presented at 6th International Conference on Unsaturated Soils (UNSAT2014, Sydney, Australia, 2-4 July 2014). The two volumes provide an overview of recent experimental and theoretical advances in a wide variety of topics related to unsaturated soil mechanics:- Unsaturated Soil Behavi
Book Synopsis Unsaturated Soils: Research & Applications by : Adrian R. Russell
Download or read book Unsaturated Soils: Research & Applications written by Adrian R. Russell and published by CRC Press. This book was released on 2020-09-24 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the contributions to the Second European Conference on Unsaturated Soils, E-UNSAT 2012, held in Napoli, Italy, in June 2012, and includes more than one hundred papers, addressing three thematic areas: experimental, modelling, and engineering.
Book Synopsis Experimental Unsaturated Soil Mechanics by : Tom Schanz
Download or read book Experimental Unsaturated Soil Mechanics written by Tom Schanz and published by Springer Science & Business Media. This book was released on 2007-06-02 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings are a continuation of the series of International Conferences in Germany entitled "Mechanics of Unsaturated Soils." The objective is to discuss and understand unsaturated soil behaviour, so that engineered activities are improved in terms of judgement and quality. In addition to knowledge of classical concepts, it is a challenge to adapt convincing new concepts and present them in such a way that they can be used in engineering practices.
Book Synopsis Proceedings of the 1st Indo-China Research Series in Geotechnical and Geoenvironmental Engineering by : Ankit Garg
Download or read book Proceedings of the 1st Indo-China Research Series in Geotechnical and Geoenvironmental Engineering written by Ankit Garg and published by Springer Nature. This book was released on 2021-01-21 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of selected papers from the 1st Indo-China Research Series in Geotechnical and Geoenvironmental Engineering held in May 2020 online. The webinar series was held at a time of COVID-19 pandemic, when there is lack of physical connectivity. The cutting-edge research topics in Civil and Environmental Engineering ranging from bio-geotechnology, methane gas hydrates, frozen soils, rock testing, and related high-rise buildings response under wind loading will be covered. The contents make valuable contributions to academic researchers and engineers in the industry and provide a platform for demonstrating joint research between scientists from India and China. These are the first proceedings of its kind to demonstrate and motivate more joint research cooperation in Civil and Environmental Engineering between two countries. It was done mainly to motivate youth research scholars to understand each other and develop long-term cooperation.
Book Synopsis Proceedings of Indian Geotechnical and Geoenvironmental Engineering Conference (IGGEC) 2021, Vol. 1 by : Arvind Kumar Agnihotri
Download or read book Proceedings of Indian Geotechnical and Geoenvironmental Engineering Conference (IGGEC) 2021, Vol. 1 written by Arvind Kumar Agnihotri and published by Springer Nature. This book was released on 2022-11-24 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the Indian Geotechnical and Geoenvironmental Engineering Conference (IGGEC-21). Various topics covered in this book include geotechnical engineering, earthquake geotechnical engineering, geoenvironmental engineering, ground improvement, transportation geotechnics, waste management and sustainable engineering. The book will be a valuable reference for researchers and professionals in the discipline of civil, materials, geoenvironmental engineering, landfills, hydrogeology, ground improvement and earthquake geotechnical engineering.
Book Synopsis Multiphysical Testing of Soils and Shales by : Lyesse Laloui
Download or read book Multiphysical Testing of Soils and Shales written by Lyesse Laloui and published by Springer Science & Business Media. This book was released on 2012-08-22 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significant advancements in the experimental analysis of soils and shales have been achieved during the last few decades. Outstanding progress in the field has led to the theoretical development of geomechanical theories and important engineering applications. This book provides the reader with an overview of recent advances in a variety of advanced experimental techniques and results for the analysis of the behaviour of geomaterials under multiphysical testing conditions. Modern trends in experimental geomechanics for soils and shales are discussed, including testing materials in variably saturated conditions, non-isothermal experiments, micro-scale investigations and image analysis techniques. Six theme papers from leading researchers in experimental geomechanics are also included. This book is intended for postgraduate students, researchers and practitioners in fields where multiphysical testing of soils and shales plays a fundamental role, such as unsaturated soil and rock mechanics, petroleum engineering, nuclear waste storage engineering, unconventional energy resources and CO2 geological sequestration.
Download or read book Tensile Testing written by Patricia Han and published by ASM International(OH). This book was released on 1992 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the common methods of testing metals, alloys, composites, ceramics, and plastics to determine their strength, ductility, and elastic/plastic deformation. For researchers, technicians, and engineers engaged in testing or designing new materials, explains the test procedures and how they ca
Book Synopsis Ground Improvement by : Professor Jian Chu
Download or read book Ground Improvement written by Professor Jian Chu and published by Elsevier. This book was released on 2005-11-07 with total page 1137 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book of its kind, providing over thirty real-life case studies of ground improvement projects selected by the worlds top experts in ground improvement from around the globe. Volume 3 of the highly regarded Elsevier Geo-engineering book series coordinated by the Series Editor: Professor John A Hudson FREng. An extremely reader friendly chapter format. Discusses wider economical and environmental issues facing scientists in the ground improvement. Ground improvement has been both a science and art, with significant developments observed through ancient history. From the use of straw as blended infill with soils for additional strength during the ancient Roman civilizations, and the use of elephants for compaction of earth dams during the early Asian civilizations, the concepts of reinforced earth with geosynthetics, use of electrokinetics and thermal modifications of soils have come a long way. The use of large and stiff stone columns and subsequent sand drains in the past has now been replaced by quicker to install and more effective prefabricated vertical drains, which have also eliminated the need for more expensive soil improvement methods.The early selection and application of the most appropriate ground improvement techniques can improve considerably not only the design and performance of foundations and earth structures, including embankments, cut slopes, roads, railways and tailings dams, but also result in their cost-effectiveness. Ground improvement works have become increasingly challenging when more and more problematic soils and marginal land have to be utilized for infrastructure development.This edited compilation contains a collection of Chapters from invited experts in various areas of ground improvement, who have illustrated the basic concepts and the applications of different ground improvement techniques using real projects that they have been involved in. The case histories from many countries ranging from Asia, America, Australia and Europe are addressed.
Book Synopsis Unsaturated Soils: Research and Applications by : Claudio Mancuso
Download or read book Unsaturated Soils: Research and Applications written by Claudio Mancuso and published by Springer Science & Business Media. This book was released on 2012-06-26 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes contain the contributions to the Second European Conference on Unsaturated Soils, E-UNSAT 2012, held in Napoli, Italy, in June 2012. The event is the second of a series of European conferences, and follows the first successful one, organised in Durham, UK, in 2008. The conference series is supported by Technical Committee 106 of the International Society of Soil Mechanics and Geotechnical Engineering on Unsaturated Soils. The published contributions were selected after a careful peer-review process. A collection of more than one hundred papers is included, addressing the three thematic areas experimental, including advances in testing techniques and soil behaviour, modelling, covering theoretical and constitutive issues together with numerical and physical modelling, and engineering, focusing on approaches, case histories and geo-environmental themes. The areas of application of the papers embrace most of the geotechnical problems related to unsaturated soils. Increasing interest in geo-environmental problems, including chemical coupling, marks new perspectives in unsaturated soil mechanics. This book will provide a valuable up-to-date reference across the subject for both researchers and practitioners.
Download or read book Canadian Geotechnical Journal written by and published by . This book was released on 2012 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a New Push-Pull Direct Tensile Strength Testing Apparatus (PPTA) by : Tugrul Unlu
Download or read book Development of a New Push-Pull Direct Tensile Strength Testing Apparatus (PPTA) written by Tugrul Unlu and published by . This book was released on 2014 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since direct tensile testing is time-consuming and expensive, the Brazilian test may overestimate the tensile strength of rocks because of its biaxial stress instead of the uniaxial tension condition, an alternative testing method is required to determine tensile strength of intact rock samples. The aim of this paper is to introduce a new push-pull tensile testing apparatus (PPTA), which can be used for determining direct tensile strength of cylindrical intact rock specimens. The PPTA introduces a new clamping mechanism that can also be utilized for the determination of conventional direct tensile strength of intact rock specimens. During the study, direct tensile tests and indirect Brazilian tests were carried out using rock specimens and artificial rock specimens that were made by using graded river sand, cement, and water mixtures to compare results obtained from the PPTA tests. Results of the experimental study have shown that there is a good correlation between the results obtained from the direct tensile tests and the PPTA. In addition, elastic and elasto-plastic numerical modeling studies were also carried out using the three-dimensional finite difference method (FLAC 3-D) to investigate stress development within rock sample during testing and failure initiation. Results of the modeling studies showed that failure of the core sample is due to maximum principal tensile stresses and crack initiation starts from the outer periphery of the core and propagates inside the center, which is an acceptable failure mode for direct tensile testing. Finally, results of the experimental and numerical studies have shown that push-pull tensile testing apparatus (PPTA) is a practical and reliable tool for determining direct tensile strength of intact rocks. Because it does not require sample preparation, it can easily be used either in laboratory or in situ.
Book Synopsis Standard Test Method for Direct Tensile Strength of Intact Rock Core Specimens by : American Society for Testing and Materials
Download or read book Standard Test Method for Direct Tensile Strength of Intact Rock Core Specimens written by American Society for Testing and Materials and published by . This book was released on 1995 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Standard Test Method for Direct Tensile Strength of Intact Rock Core Specimens by : ASTM Committee D-18 on Soil and Rock
Download or read book Standard Test Method for Direct Tensile Strength of Intact Rock Core Specimens written by ASTM Committee D-18 on Soil and Rock and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
