Application of the Dynamic Cone Penetrometer to Minnesota Department of Transportation Pavement Assessment Procedures PDF Download
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Author: Thomas R. Burnham Publisher: ISBN: Category : Compacting Languages : en Pages : 80
Book Description
The Minnesota Department of Transportation (Mn/DOT) began testing the dynamic cone penetrometer (DCP) in 1991, finding the DCP an effective tool in the assessment of subsurface pavement conditions and strength. Researchers conducted extensive DCP testing and research on both the Minnesota Road Research Project (Mn/ROAD) and several pilot project sites in an effort to understand its useful applications in Minnesota. Mn/DOT currently specifies two applications of DCP testing in its pavement assessment procedure. One application involves using the DCP as a quality control device during the backfill compaction of pavement edge drain trenches. The second application involves its use in quality control of granular base layer compaction. This report details these applications and includes a copy of both specifications in the appendices.
Author: Thomas R. Burnham Publisher: ISBN: Category : Compacting Languages : en Pages : 80
Book Description
The Minnesota Department of Transportation (Mn/DOT) began testing the dynamic cone penetrometer (DCP) in 1991, finding the DCP an effective tool in the assessment of subsurface pavement conditions and strength. Researchers conducted extensive DCP testing and research on both the Minnesota Road Research Project (Mn/ROAD) and several pilot project sites in an effort to understand its useful applications in Minnesota. Mn/DOT currently specifies two applications of DCP testing in its pavement assessment procedure. One application involves using the DCP as a quality control device during the backfill compaction of pavement edge drain trenches. The second application involves its use in quality control of granular base layer compaction. This report details these applications and includes a copy of both specifications in the appendices.
Author: Shiraz D. Tayabji Publisher: ASTM International ISBN: 0803128584 Category : Materials Languages : en Pages : 534
Book Description
As with the previous two symposia, the 32 papers from the June/July, 1999, Seattle symposium present advances in the nondestructive testing of pavements using conventional falling weight deflectometer techniques and other promising techniques such as ground penetrating radar, rolling weight deflecto
Author: Anand J. Puppala Publisher: ISBN: Category : Technology & Engineering Languages : en Pages : 340
Book Description
GSP 149 contains 40 papers on site and geomaterial characterization presented at the GeoShanghai Conference, held in Shanghai, China, June 6-8, 2006.
Author: Zhongjie Zhang Publisher: ISBN: Category : Fills (Earthwork) Languages : en Pages : 108
Book Description
Conduit structures dealing with hydraulic drainage needs in the Louisiana highway system include pipe culverts, pipe arch culverts, storm drains, sewers, etc. Although the Louisiana Department of Transportation and Development (LADOTD) has standard specifications for furnishing and installing these conduit structures to guarantee their proper functions, unexpected pavement surface dips still occur at some locations of highway cross-drain culverts and cause the deterioration of pavement ride comfort. The goal of this study was to develop recommendations for design and construction procedures to eliminate such pavement surface dips above highway culvert crossing structures. Researchers conducted a literature search and field investigation on existing pavements at various cross-drain locations with and without the pavement surface dip problem. In addition to conventional laboratory tests, full-scale trench backfill tests at the Louisiana Transportation Research Centers (LTRC) Pavement Research Facility (PRF) site evaluated different backfill materials in a controlled environment. Four construction projects accommodated field trench backfill testing sections with various backfill materials to further verify the findings obtained previously. The field testing sections used concrete pipes varied in size from 36 to 54 inches. Using different field compaction equipment and methods, the study explored and evaluated factors that influence the quality of highway cross-drain trench backfill. Relevant cost information is also included for future reference. The results from this study indicate that pavement surface dips at highway cross-drains on Louisiana highways involve many complex factors. The field probing tests revealed that the occurrence of the pavement dip depended largely on the relative stiffness of trench backfill materials with respect to their adjacent natural soils. The occurrence and magnitude of pavement surface dips depended also on other factors such as the stiffness of the pavement structure and truck traffic loading, etc. When a dip occurred at the surface, the trench backfill underneath was weaker than adjacent subgrade soils. Construction environment, contractors' workmanship, backfill materials, and compaction are the major factors controlling the quality of trench backfill compaction.
Author: D. Manzanal Publisher: IOS Press ISBN: 1614996032 Category : Technology & Engineering Languages : en Pages : 3344
Book Description
The work of geotechnical engineers contributes to the creation of safe, economic and pleasant spaces to live, work and relax all over the world. Advances are constantly being made, and the expertise of the profession becomes ever more important with the increased pressure on space and resources. This book presents the proceedings of the 15th Pan-American Conference on Soil Mechanics and Geotechnical Engineering (XV PCSMGE), held in Buenos Aires, Argentina, in November 2015. This conference, held every four years, is an important opportunity for international experts, researchers, academics, professionals and geo-engineering companies to meet and exchange ideas and research findings in the areas of soil mechanics, rock mechanics, and their applications in civil, mining and environmental engineering. The articles are divided into nine sections: transportation geotechnics; in-situ testing; geo-engineering for energy and sustainability; numerical modeling in geotechnics; foundations and ground improvement; unsaturated soil behavior; embankments, dams and tailings; excavations and tunnels; and geo-risks, and cover a wide spectrum of issues from fundamentals to applications in geotechnics. This book will undoubtedly represent an essential reference for academics, researchers and practitioners in the field of soil mechanics and geotechnical engineering. In this proceedings, approximately 65% of the contributions are in English, and 35% of the contributions are in Spanish or Portuguese.
Author: Joakim G. Laguros Publisher: ISBN: Category : Dinosaurs Languages : en Pages : 88
Book Description
This synthesis will be of interest to state department of transportation (DOT) construction, geotechnical, materials, and pavement system design engineers, engineering geologists, and research engineers, and others concerned with the constructibility of new pavements over existing subgrades. The synthesis describes current practice for the stabilization of existing subgrades to improve constructibility during interstate pavement reconstruction. It presents information regarding the methods available to evaluate and improve subgrade conditions for the purpose of meeting the constructibility requirements of a reconstruction project. This report of the Transportation Research Board presents data obtained from a review of the literature and a survey of the state DOTs. The synthesis reports on: subgrade evaluation methods including sampling, laboratory, and in-situ test methods, as well as assessment of existing drainage systems; constructibility factors such as existing and proposed pavement types, available equipment, and cost effectiveness of various subgrade stabilization techniques; methods of subgrade improvement including mechanical and chemical stabilization, use of recycled and waste materials, the use of geosynthetics in reinforcement and drainage applications; and construction methods with an emphasis on innovative approaches such as novel sequencing of construction traffic, use of lightweight equipment, and robotics. In addition, several case histories describing applicable pavement reconstruction projects are presented. Finally, suggestions to possibly improve the practice and the identification of research needs are also presented.
Author: Thomas R. Burnham
Author: Thomas R. Burnham
Author: Shiraz D. Tayabji
Author: Anand J. Puppala
Author: American Society of Civil Engineers. Geo-Institute
Author: Anand J. Puppala
Author: Zhongjie Zhang
Author: D. Manzanal
Author: 
Author: National Cooperative Highway Research Program
Author: Joakim G. Laguros