Qa Qc Of Subgrade And Embankment Construction
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Author | : Eshan Ganju |
Publisher | : |
Total Pages | : |
Release | : 2015-09-01 |
Genre | : |
ISBN | : 9781622603404 |
The Dynamic Cone Penetrometer (DCP) is a device that is used for the estimation of in situ compaction quality of constructed subgrades and embankments. It is a relatively inexpensive, light-weight and easy to use device that measures the dynamic penetration resistance of the compacted soil, from which an estimate of soil strength and stiffness characteristics can be made. Owing to its ease of use, many DOTs in the U.S. have employed the DCP in their compaction quality control procedures, and over the past few decades, extensive research has been carried out on the development of correlations between the results of the DCP test and the results of strength and stiffness tests performed on compacted soils (e.g., California bearing ratio, and resilient modulus)The objectives of this research are to refine DCP-based quality assurance and quality control correlations for compaction quality control developed by previous research studies carried out at Purdue for the Indiana Department of Transportation, especially focusing on (1) grouping of the soils based on their mechanical response to the DCP loading, and (2) limiting the in situ moisture range of the soils used for development of correlations within -2% of the optimum moisture content of the tested soil. The factors outlined above are studied, and in particular, soil grouping is examined critically. The AASHTO ('A-based') classification employed previously for classification of soils is replaced with a new classification criteria specifically developed for the DCP test. Soils are grouped into one of the two categories of coarse-grained or fine-grained soils on the basis of the size of the dominant particle in the soil. The criteria developed for the classification of soil into one of these two categories is based on index properties of the soil, such as the standard Proctor maximum dry density, optimum moisture content, plasticity index (PI) and fines content.
Author | : Alberto Munguia Mireles |
Publisher | : iUniverse |
Total Pages | : 189 |
Release | : 2014-08-30 |
Genre | : Technology & Engineering |
ISBN | : 1491744812 |
The material used for subgrade or embankment construction are variable in color, texture and density-moisture relationship. To adequately control the compaction and field densities of these materials is necessary to know what to expect of the material being use. This field book provides you with some information that will serve this purpose. Soil testing is a quantitative method of quality control for the compacted fill material, and the actual number and types made will depend on the requirements specified by the Designer. The Texas Department of Transportation established those requirements on a document called Schedule for Testing and Sampling. Soil testing should always be specified, conducted and the results closely monitored by the designer, inspector and contractor This field book is used precisely, to collect information on site to fully understand the nature of the material that is being use on the project and to demonstrate that the compacted fill is meeting with soil's properties, densities-moisture relationship and number of testing required. Closely monitoring the information collected on this field book will give the user valuable information that will allow him to properly manipulate the material being processed This field book is a training tool that aggregates civil engineering and construction knowledge that is considered fundamental during the execution of the earthwork
Author | : James J. O'Brien |
Publisher | : Springer Science & Business Media |
Total Pages | : 772 |
Release | : 2013-04-17 |
Genre | : Technology & Engineering |
ISBN | : 1475711913 |
In addition to quality control (QC), this book introduces the concept of quality assurance (QA). Quality assurance has a number of definitions, but in general is the combination of the quality assurance plan with procedures through which the quality control inspector can inspect in the field. The book is arranged in categories so that is can be used in handbook fashion; each section stands independent of the others. The arrangement of the major portion of the book is organized in the same format as we usually find in building construction specification, the Construction Specifications Institute (CSI) format.
Author | : George Stukhart |
Publisher | : |
Total Pages | : 56 |
Release | : 1985 |
Genre | : Business & Economics |
ISBN | : |
Author | : |
Publisher | : FEMA |
Total Pages | : 317 |
Release | : |
Genre | : |
ISBN | : |
Author | : G. J. Allen |
Publisher | : ASTM International |
Total Pages | : 44 |
Release | : 1980 |
Genre | : Electronic book |
ISBN | : 9780803107694 |
Author | : E. Tutumluer |
Publisher | : |
Total Pages | : 180 |
Release | : 2013 |
Genre | : Aggregates (Building materials) |
ISBN | : |
"TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 445: Practices for Unbound Aggregate Pavement Layers consolidates information on the state-of-the-art and state-of-the-practice of designing and constructing unbound aggregate pavement layers. The report summarizes effective practices related to material selection, design, and construction of unbound aggregate layers to potentially improve pavement performance and longevity."--Publisher website.
Author | : United States. Bureau of Public Roads |
Publisher | : |
Total Pages | : 56 |
Release | : 1965 |
Genre | : Road construction |
ISBN | : |
Author | : Sidney Scott III and Linda Konrath |
Publisher | : Transportation Research Board |
Total Pages | : 474 |
Release | : |
Genre | : |
ISBN | : 0309273838 |
This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, describes suggested performance specifications for different application areas and delivery methods that users may tailor to address rapid highway renewal project-specific goals and conditions.
Author | : Massimo Losa |
Publisher | : CRC Press |
Total Pages | : 800 |
Release | : 2014-04-28 |
Genre | : Technology & Engineering |
ISBN | : 1315757125 |
Worldwide there is a growing interest in efficient planning and the design, construction and maintenance of transportation facilities and infrastructure assets. The 3rd International Conference on Transportation Infrastructure ICTI 2014 (Pisa, April 22-25, 2014) contains contributions on sustainable development and preservation of transportation in