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Author : John D. Roberts
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (528 download)
Download or read book Performance of Cement Modified Soils written by John D. Roberts and published by . This book was released on 1984* with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Portland Cement Association
Publisher :
ISBN 13 : 9780893122362
Total Pages : 130 pages
Book Rating : 4.1/5 (223 download)
Download or read book Evaluating the Performance of Soil-Cement and Cement-Modified Soil written by Portland Cement Association and published by . This book was released on 2004-05-01 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the findings on an extensive laboratory testing study to identify new approaches to improving the performance of soil-cement bases and cement-modified soils in pavements. Current soil-cement design procedures are based solely on 7-day Unconfined Compressive Strength (UCS) criteria, but high base strengths are no guarantee of satisfactory long-term pavement performance. In this project a laboratory study was undertaken to determine the optimal cement content for three marginal Texas base materials. Recommended cement contents are based on balancing conflicting criteria from the following four performance related tests: a) UCS, b) Shrinkage, c) Moisture susceptibility, and d) Abrasion resistance. A new test method called the Tube Suction Test (TST) is introduced for assessing the moisture susceptibility of soil-cement materials. The TST is shown to correlate well with the existing wet-dry and freeze-thaw durability tests. In addition, the effects of both the level of pulverization and the method of adding the stabilizer (dry vs. slurry) were studied. The major finding was that the properties of the CMS were strongly dependent upon the mixing procedure. The use of cement slurries produced the best lab properties. The results showed that the slurry was effective in treating soil even with slurry mixing times up to 4 hours.
Author : Gregory E. Halsted
Publisher :
ISBN 13 : 9780893122676
Total Pages : 20 pages
Book Rating : 4.1/5 (226 download)
Download or read book Guide to Cement-modified Soil (CMS) written by Gregory E. Halsted and published by . This book was released on 2008-08 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cement-modified soil (CMS) is a soil/aggregate material that has been treated with a relatively small proportion of portland cement in order to amend its undesirable properties so that they are suitable for use in subgrade or foundation construction. This guide to CMS discusses its applications, benefits, design, construction, testing, and performance.
Author : Coastal Development Institute Tokyo
Publisher : CRC Press
ISBN 13 : 9789058093677
Total Pages : 148 pages
Book Rating : 4.0/5 (936 download)
Download or read book The Deep Mixing Method written by Coastal Development Institute Tokyo and published by CRC Press. This book was released on 2002-01-01 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: A growing population and increasing urbanization over the past century have made it difficult to locate suitable ground for siting infrastructures in densely populated areas. The Deep Mixing Method (DMM) was developed and put into practice in Japan in 1975 to cope with the headaches of stability and/or excessive settlement in soft soil areas. This method involves using cement and/or lime as a soil stabilizer, added in-situ to deep soils, and has now been adopted not only in Japan but in the USA and other parts of the world as well. This book presents properties of this treated soil method, its various applications, its design and execution, and accumulated research results over the last twenty-five years.
Author : Peter G. Nicholson
Publisher : Butterworth-Heinemann
ISBN 13 : 0124078990
Total Pages : 472 pages
Book Rating : 4.1/5 (24 download)
Download or read book Soil Improvement and Ground Modification Methods written by Peter G. Nicholson and published by Butterworth-Heinemann. This book was released on 2014-08-29 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an author with more than 25 years of field and academic experience, Soil Improvement and Ground Modification Methods explains ground improvement technologies for converting marginal soil into soil that will support all types of structures. Soil improvement is the alteration of any property of a soil to improve its engineering performance. Some sort of soil improvement must happen on every construction site. This combined with rapid urbanization and the industrial growth presents a huge dilemma to providing a solid structure at a competitive price. The perfect guide for new or practicing engineers, this reference covers projects involving soil stabilization and soil admixtures, including utilization of industrial waste and by-products, commercially available soil admixtures, conventional soil improvement techniques, and state-of-the-art testing methods. Conventional soil improvement techniques and state-of-the-art testing methods Methods for mitigating or removing the risk of liquefaction in the event of major vibrations Structural elements for stabilization of new or existing construction industrial waste/by-products, commercially available soil Innovative techniques for drainage, filtration, dewatering, stabilization of waste, and contaminant control and removal
Author : Nicholas James DeBlasis
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (841 download)
Download or read book The Influence of Curing Temperature on Cement Stabilization of North Carolina Soils written by Nicholas James DeBlasis and published by . This book was released on 2008 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cement is perhaps the most common soil stabilizer, often blended with soils at various proportions to increase strength and durability. However, there are concerns with regard to the impact of low curing temperature on strength and ultimate performance. The purpose of this study is to determine the impact curing temperature has on the unconfined compressive (UC) strength and stress-strain behavior of cement modified soil as well as to consider methods to improve performance in cold-weather conditions. The data indicate that curing soil-cement at lower temperatures will result in lower strengths. For example, the 7 day strength for samples cured at 25[degrees]F was less than the strength of samples cured at 50[degrees]F or 70[degrees]F by a factor ranging from 2-6. Likewise, the 7 day strength for samples cured at 35[degrees]F was less than the strength of samples cured at 50[degrees]F or 70[degrees]F by approximately 20-25%. Additionally, on the basis of 15 repeat tests for 3 & 7 day curing periods, for three different soils, results indicate that the mean strength at 3 days is 84-93% of that for 7 days, in support of a potential change in current subgrade evaluation practice predicated on the longer duration. The use of a calcium chloride (CaCl[subscript]2) solution as the molding moisture content was found to increase the UC strength by 20% for one soil/temperature condition but generally resulted in decreased strength at the concentration range (0.5 - 3.0%) tested. The use of CaCl[subscript]2 solution had a mixed impact on the maximum dry density (MDD), with overall changes between 2-3% of the MDD of the unmodified soil-cement control. Similarly, the optimum moisture contents (OMC) were generally within [plus or minus]2% of the OMC of the control. Analysis of the data suggests a threshold concentration for CaCl[subsript]2 efficacy, beyond which diminishing benefit transitions to deleterious performance.
Author : William Anthony Russo Zinn
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.:/5 (244 download)
Download or read book Cement Modified Earthen Mortar written by William Anthony Russo Zinn and published by . This book was released on 2005 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gregory E. Halsted
Publisher :
ISBN 13 : 9780893122539
Total Pages : 20 pages
Book Rating : 4.1/5 (225 download)
Download or read book Guide to Cement-treated Base (CTB) written by Gregory E. Halsted and published by . This book was released on 2006 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cement-treated base (CTB) is a general term that applies to an mixture of native soils and/or manufactured aggregates with measured amounts of portland cement and water that is compacted and cured to form a strong, durable, frost resistant paving material. Other descriptions such as soil-cement base, cement-treated aggregate base, cement-stabilized base are sometimes used. This document provides a basic guide on the use of cement-treated base (CTB) for pavement applications. This document provides on overview on the design and construction of CTB for both mixed-in-place and central plant mixed operations. A suggested construction specification is also included.
Author : National Research Council (U.S.). Highway Research Board
Publisher :
ISBN 13 :
Total Pages : 234 pages
Book Rating : 4.:/5 (359 download)
Download or read book Soil Stabilization with Portland Cement written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1961 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report surveys the available information on mixtures of soil and cement. Included are data on (1) properties of cement-treated soil, (2) factors influencing properties of cement-treated soil, (3) uses of cement-treated soil and bituminous surfacing requirements, (4) preliminary surveying, sampling, testing and mix design for cement- treated soil construction, (5) structural design of soil- cement bases, (6) cement-treated soil construction, (7) engineering control of construction, and (8) field performance of soil-cement base courses.
Author : Portland Cement Association
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.E/5 ( download)
Download or read book Soil-cement Construction Handbook written by Portland Cement Association and published by . This book was released on 1995 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Paul Guyer, P.E., R.A.
Publisher : Guyer Partners
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4./5 ( download)
Download or read book An Introduction to Soil Stabilization with Portland Cement written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil and geotechnical engineers interested in soil stabilization with portland cement. Here is what is discussed: 1. STABILIZATION WITH PORTLAND CEMENT 2. STABILIZATION WITH LIME 3. STABILIZATION WITH LIME-FLY ASH (LF) AND LIME-CEMENT-FLY ASH (LCF) 4. STABILIZATION WITH BITUMEN 5. STABILIZATION WITH LIME-CEMENT AND LIME- BITUMEN 6. LIME TREATMENT OF EXPANSIVE SOILS.
Author : ASTM Committee D-18 on Soils for Engineering Purposes
Publisher : ASTM International
ISBN 13 :
Total Pages : 381 pages
Book Rating : 4./5 ( download)
Download or read book Papers on Soils, 1959 Meetings written by ASTM Committee D-18 on Soils for Engineering Purposes and published by ASTM International. This book was released on 1960 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ammar Ali
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (18 download)
Download or read book Mechanical Performance of Fine-grained Soil Cement Mixtures written by Ammar Ali and published by . This book was released on 2018 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are various methods that can be utilized for improving the mechanical properties of soils. Ground improvement alternatives include mechanical, chemical, and biochemical methods. Among the chemical ground improvement methods, cement stabilization is one of the most commonly used. The addition of cement in the presence of water triggers a series of chemical reactions that result in an improvement in strength and stiffness and a reduction in the plasticity of the soil. Cement stabilization can also be completd in-situ, which makes it cost effective. Cement is most commonly used with coarse-grained soils, i.e., concrete and cemented bases, whereas this thesis aims to explore its use--in low percentages (3 to 6% by mass)--with low and high plasticity fine-grained soils. The small-strain constrained modulus (M_max) was used to evaluate the stiffness, and the unconfined compressive strength (UCS) was used to evaluate the large-strain behavior. The results indicated that the stiffness and strength of soil-cement mixtures at low cement contents is very sensitive to changes in compaction water content, compactive effort, and curing conditions.
Author : United States. Army. Corps of Engineers
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.X/5 (3 download)
Download or read book Soil Stabilization for Roads and Streets written by United States. Army. Corps of Engineers and published by . This book was released on 1961 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Portland Cement Association
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (3 download)
Download or read book Properties and Uses of Cement-modified Soil written by Portland Cement Association and published by . This book was released on with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Kenneth Mitchell
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (359 download)
Download or read book Behavior of Stabilized Soils Under Repeated Loading written by James Kenneth Mitchell and published by . This book was released on 1972 with total page 200 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 Soil Stabilization for Roads and Streets written by and published by . This book was released on 1969 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
