Download or read book A Preliminary Investigation to Determine the Feasibility of Compacting Fine grained Soils Using the Gyratory Testing Machine written by Rupert Graham Tart and published by . This book was released on 1966 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feasibility Study of the Gyratory Machine for Testing Soils written by John L. McRae and published by . This book was released on 1962 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Master s Theses and Doctoral Dissertations in the Pure and Applied Sciences written by and published by . This book was released on 1966 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of the Strength Characteristics of Pneumatically Compacted Fine Grained Soils Using the Gyratory Testing Machine written by Wendell Wilkie Parker and published by . This book was released on 1976 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gyratory Compaction of Soil written by William B. Fenwick and published by . This book was released on 1969 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Static Method to Determine Compaction Characteristics of Fine Grained Soils written by B. Sharma and published by . This book was released on 2016 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering projects such as roads, earthen dams, embankments, and trench backfills require soil compacted at higher dry unit weight. In a majority of geotechnical projects, compaction of soils is involved with increasing strength and decreasing compressibility and permeability. The Proctor compaction test forms one of the most popular and important tests in geotechnical engineering practice. The moisture content-dry unit weight relationship of the soil obtained from the standard Proctor test forms the basis for specification and field compaction control. Standard Proctor test, also known as the dynamic compaction test requires considerable time and effort and has few imperfections. This study examined the possibility of determining the equivalent static pressure to the standard Proctor test to obtain the optimum moisture content, OMC, and maximum dry unit weight, of fine-grained soils. For this, a static compaction pressure test was devised in the Proctor mold itself to statically compact the soil at different water contents. The equivalent static pressure so determined will simplify the compaction procedure and will also result in considerable saving of time, money, and effort, especially so when dealing with highway and earth embankment projects.
Download or read book Gyratory Compaction Method for Determining Density Requirements for Subgrade and Base of Flexible Pavements written by Waterways Experiment Station (U.S.) and published by . This book was released on 1962 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dry soil Compaction Investigation written by William N. Brabston and published by . This book was released on 1987 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objectives of this field study were to investigate means of compacting soils at near-zero water content. Two 125-ft-long test sections were constructed, each consisting of five test items 25 ft long with a 5-ft-deep test bed. In each test section, the first item consisted of 1.5 ft of crushed limestone (GW) over 3.5 ft of bomb-crater debris. The remaining four items consisted of 5 ft of silty clay (ML0, river sand (CL-ML), gravelly sand (SP), and sand tailings (SP), respectively. One test section was compacted with a single drum self-propelled vibratory roller and the other with a towed four-sided impact single drum sel-propelled vibratory roller and the other with a towed four-sided impact roller. Test results were not fully conclusive because of the difficulty in drying soils with fines, rotational slippage of the impact roller during testing, and precompaction of the soils in the vibratory roller test section during construction. However, it could be concluded that (a) compaction at low water content was feasible primarily with soils with few fines, (b) significant difficulty would be experienced in field-drying soils with high fines content, (c) both compactors generally gave acceptable results, but the rate of compaction of the impact roller was much higher than that of the vibratory roller, and (d) test results warranted further investigation of compaction with the impact roller.
Download or read book Feasability of Using a Gyratory Compactor to Determine Compaction Characteristics of Soil written by Michael John Browne and published by . This book was released on 2006 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gyratory compaction results, expressed in terms of dry unit weight and optimum moisture content, were compared to traditional laboratory compaction methods (Proctor and relative density tests). These results indicated that each soil type (A-1-a, A- 3, A-4, and A-7-6) was sensitive to one or more of the gyratory compaction variables. When compacted with moisture soil dry unit weights obtained from gyratory compaction surpassed the dry unit weights of traditional compaction methods for the majority of soils tested; therefore, gyratory compaction was considered a feasible and effective method of laboratory soil compaction. A-4 was the only soil whose dry density did not surpass some of traditional compaction tests. Continued research is needed to develop a standardized protocol for gyratory compaction of soils as well as gain a more thorough understanding of free-draining soil. Future studies may also gain a better understanding of gyratory compaction by comparing dry unit weights, pressures, or energies of gyratory compaction to field compaction instead of existing laboratory compaction techniques.
Download or read book Compaction Characteristics of Clay Soil Using the Gyratory Testing Machine written by Abbas Nasir Al-Khafaji and published by . This book was released on 1964 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mini Compaction Test Apparatus for Fine Grained Soils written by A. Sridharan and published by . This book was released on 2005 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The standard and modified Proctor compaction tests are devised to establish dry unit weight-water content relationships for a soil under controlled conditions, such as compactive effort, water content, etc. This paper presents a mini compaction apparatus primarily for use in fine grained soils, which requires only about 1/10th volume of soil needed for the standard and modified Proctor test. Additionally, the time and effort involved in carrying out the compaction test is much less. Also, the compacted soil sample, after trimming, can be used for strength tests.
Download or read book Investigation of Tensile Testing of Compacted Soils written by Mosaid M. Al-Hussaini and published by . This book was released on 1974 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The investigation reported herein describes the development of a hollow cylinder testing device and an indirect tensile testing device and the feasibility of using this equipment for determining the tensile properties of compacted cohesive soils. Hollow cylinder, indirect tensile, and double punch tests were conducted on compacted specimens of Vicksburg buckshot clay (CH), Vicksburg lean clay (CL), and a sandy clay mixture (SC) from Degray Dam. Unconfined compression tests were also conducted to provide comparative compressive properties of the materials. The test results showed that hollow cylinder tests produce the highest measured tensile strengths of comparable specimens, followed in decreasing order by indirect tensile and double punch tests, and that tensile strength increases as the plasticity of the soil increases. (Modified author abstract).
Download or read book Simulation of the Moisture density Characteristics of Pneumatically Compacted Soils Using the Gyratory Testing Machine written by Dennis Clark Chambers and published by . This book was released on 1974 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Level One Mix Design written by Ronald J. Cominsky and published by National Research Council. This book was released on 1994 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the research devoted to three key aspects of the Superpave Level I mix design: volumetric mix design criteria for aggregates and mixes; compaction; and mix conditioning. The first chapter describes the Delphi group process that was used to select aggregate properties and specification values included in the Level I mix design procedure. Chapter 2 addresses the rationale for the selection of the gyratory compactor, its relations to field control, and validation. The final chapter summarizes the research associated with the development and validation of laboratory conditioning procedures for asphalt concrete mixes. It describes the procedures used to simulate both short- and long-term aging, as well as moisture sensitivity under repeated loading.
Download or read book Discrete Fiber Reinforcement of Sands for Expedient Road Construction written by Jeb Stuart Tingle and published by . This book was released on 1999 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Road Engineering for Development written by Richard Robinson and published by CRC Press. This book was released on 2018-10-09 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developing countries in the tropics have different natural conditions and different institutional and financial situations to industrialized countries. However, most textbooks on highway engineering are based on experience from industrialized countries with temperate climates, and deal only with specific problems. Road Engineering for Development (published as Highway and Traffic Engineering in Developing Countries in its first edition) provides a comprehensive description of the planning, design, construction and maintenance of roads in developing countries. It covers a wide range of technical and non-technical problems that may confront road engineers working in this area. The technical content of the book has been fully updated and current development issues are focused on. Designed as a fundamental text for civil engineering students this book also offers a broad, practical view of the subject for practising engineers. It has been written with the assistance of a number of world-renowned specialist professional engineers with many years experience in Africa, the Middle East, Asia and Central America.
Download or read book Hard Rock Miner s Handbook written by Jack De la Vergne and published by . This book was released on 2008 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
