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Author : Luis Lemus
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (11 download)
Download or read book Improvement of Base and Soil Construction Quality by Using Intelligent Compaction Technology written by Luis Lemus and published by . This book was released on 2017 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christopher Wanamaker
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723258572
Total Pages : 52 pages
Book Rating : 4.2/5 (585 download)
Download or read book Intelligent Compaction of Soils and Subbase Materials: a Broad Overview written by Christopher Wanamaker and published by Createspace Independent Publishing Platform. This book was released on 2016-05-18 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The key to constructing any high performing pavement system is having a strong, well-compacted base that can support the loads being placed on it. Proper compaction of asphalt, base, subbase materials is probably the single most important thing that can be done to improve the soil's bearing capacity thus ensuring a stable and long lasting final product. Traditionally, compaction of soils and subbase materials has been mostly achieved using heavy rollers. Uniformity of compaction is often the goal however it is rarely achieved. Problem areas of low-quality compaction can exist within a project site that can lead to premature structural failure. The goal of intelligent compaction is to address the quality control gaps in the current practice to improve overall product quality, uniformity, and consistency. Furthermore, intelligent compaction serves to provide a means to consistently and instantaneously provide the project manager, agency, and contractor with compaction information all throughout the entire construction process. In this short book, Professional Engineer Christopher Wanamaker gives a brief history of intelligent compaction and then offers a discussion of several manufacturers' approach to this young technology. Find out the theory behind how this technology works and read about two case studies in which intelligent compaction was utilized on a construction site. Finally, the author discusses the limitations of intelligent compaction what advances are still needed to help make this the technology of choice for future roadway construction projects.
Author : Jorge Alberto Beltran Valenzuela
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (964 download)
Download or read book Improving Construction Quality of Pavement Geomaterial Layers Using Intelligent Compaction Data written by Jorge Alberto Beltran Valenzuela and published by . This book was released on 2016 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Philip Dunston
Publisher :
ISBN 13 : 9781622604944
Total Pages : pages
Book Rating : 4.6/5 (49 download)
Download or read book Intelligent Compaction of Soils written by Philip Dunston and published by . This book was released on 2018-08-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a study of intelligent compaction (IC) technologies, within the context of actual construction projects, for its potential as a component of INDOT's QC/QA for soils. The output from an IC-equipped roller compaction equipment is a real-time area mapping of the compacted lift stiffness as captured by the IC measure. Data was collected to evaluate the correlation between each of two IC measures-compaction meter value (CMV) and machine drive power (MDP)-and in situ embankment quality test measures, the chief in situ test being the dynamic cone penetrometer (DCP) test which INDOT uses for soil embankment acceptance testing. Researchers sought to understand how well the IC measures might assess embankment quality as currently evaluated by the in situ measures. Window-averaged IC measures were compared with the in situ DCP test points. For CMV, a variable correlation was found between the average CMV and DCP values from 74 in situ locations. Also, a limited head-to-head comparison of CMV and MDP with the in situ measures provided some indication that MDP should be studied further. Lessons were learned regarding the elimination of bias in future correlation studies, critical provisions to facilitate best data quality, and important aspects of data management. IC technology holds promise for monitoring the consistency of the soil compaction effort and flagging weak areas in real time during compaction operations. However, further insight is needed regarding the correlation of the DCP measure with both types of IC measures for various soil characterizations and field moisture conditions.
Author : Cesar Carrasco
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (915 download)
Download or read book Numerical Simulation of Intelligent Compaction Technology for Construction Quality Control written by Cesar Carrasco and published by . This book was released on 2014 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael A. Mooney
Publisher : Transportation Research Board
ISBN 13 : 0309155193
Total Pages : 178 pages
Book Rating : 4.3/5 (91 download)
Download or read book Intelligent Soil Compaction Systems written by Michael A. Mooney and published by Transportation Research Board. This book was released on 2010 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 676: Intelligent Soil Compaction Systems explores intelligent compaction, a new method of achieving and documenting compaction requirements. Intelligent compaction uses continuous compaction-roller vibration monitoring to assess mechanistic soil properties, continuous modification/adaptation of roller vibration amplitude and frequency to ensure optimum compaction, and full-time monitoring by an integrated global positioning system to provide a complete GPS-based record of the compacted area--
Author : Wei Hu
Publisher :
ISBN 13 :
Total Pages : 149 pages
Book Rating : 4.:/5 (112 download)
Download or read book Evaluation of Intelligent Compaction Technology in Asphalt Pavement Construction and Laboratory Compaction written by Wei Hu and published by . This book was released on 2018 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: While having been successfully used for soil compaction for many years, intelligent compaction (IC) technology is still relatively new for asphalt pavement construction. The potential of using intelligent compaction meter value (ICMV) for evaluating the compaction of asphalt pavements has been hindered by the fact that ICMV can be affected by many factors, which include not only roller operation parameters, but also the temperature of asphalt layer and the underlying support. Therefore, further research is necessary to improve the application of IC for the asphalt compaction. In this study, the feasibility of IC for asphalt compaction was evaluated from many aspects. Based on that, a laboratory IC technology for evaluating asphalt mixture compaction in the laboratory was also developed. In this study, one field project for soil compaction was constructed using IC technology, and a strong and stable linear relationship between ICMV and deflection could be identified when the water content of soil was consistent. After that, more field projects for asphalt compaction were constructed using the IC asphalt roller. The density of asphalt, as the most critical parameter for asphalt layers, along with other parameters, were measured and correlated with the ICMVs. Various factors such as asphalt temperature and the underlying support were considered in this study to improve the correlation between the density and ICMV. Based upon the results of correlation analyses, three IC parameters were recommended for evaluating the compaction quality of resurfacing project. In addition, the geostatistical analyses were performed to evaluate the spatial uniformity of compaction, and the cost-benefit analysis was included to demonstrate the economic benefits of IC technology. Based on the test results of field projects, the IC indices were further utilized to quantify the lab vibratory compaction for paving materials. The compaction processes in the laboratory was monitored by accelerometers. Using Discrete-Time Fourier Transform, the recorded data during compaction were analyzed to evaluate the compactability of paving materials and to further correlate to the field compaction.
Author : Siddharth M. Satani
Publisher :
ISBN 13 : 9781392587676
Total Pages : 0 pages
Book Rating : 4.5/5 (876 download)
Download or read book Evaluating the Impact of Intelligent Construction Techniques on Life Cycle Cost Analysis of Pavement Structures written by Siddharth M. Satani and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compaction reduces the volume of soil layers, aggregates, asphalt, and air voids. In the conventional compaction method, quality control is an issue since tests are limited to very specific locations, the actual amount of compaction needed is unknown for the operator at the real-time, and properties measured by devices are limited to outbound layers only. While Intelligent Compaction (IC) is a smart technology that provides 100% surface coverage over pavement compaction. Therefore, the quality control and consequently the uniformity of the layer will be significantly improved. IC technology applies to both soil base and asphalt concrete construction. It is also expanding the life span of the roadway. IC is performed by IC rollers equipped with the following: accelerometer, accurate Global Positioning System, Infrared Temperature Sensors, and onboard screens that continuously analyze compaction data. This system collects vibration amplitude and frequency data, roller speed, eccentric force, number of passes and real-time asphalt surface temperature. An accelerometer provides Intelligent Compaction Measurement Value (ICMV). ICMV is a measurement of material stiffness. The utilization of IC technology improves the accuracy of quality control. However, contractors and project owners are yet concerned about the cost efficiency of the approach. This study covers Life Cycle Cost Analysis (LCCA) and Life Cycle Assessment (LCA) of IC and Conventional Compaction. Several analyses are performed over a construction project, it is concluded that IC technology, can optimize agency, user and maintenance cost, construction time, reduce air emissions, and reduce resource usage.
Author : Carlos Zambrano
Publisher :
ISBN 13 : 9781622601356
Total Pages : pages
Book Rating : 4.6/5 (13 download)
Download or read book Advanced Compaction Quality Control written by Carlos Zambrano and published by . This book was released on 2006-10-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jie Han
Publisher : John Wiley & Sons
ISBN 13 : 111841960X
Total Pages : 435 pages
Book Rating : 4.1/5 (184 download)
Download or read book Principles and Practice of Ground Improvement written by Jie Han and published by John Wiley & Sons. This book was released on 2015-05-26 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gain a stronger foundation with optimal ground improvement Before you break ground on a new structure, you need to analyze the structure of the ground. Expert analysis and optimization of the geo-materials on your site can mean the difference between a lasting structure and a school in a sinkhole. Sometimes problematic geology is expected because of the location, but other times it's only unearthed once construction has begun. You need to be able to quickly adapt your project plan to include an improvement to unfavorable ground before the project can safely continue. Principles and Practice of Ground Improvement is the only comprehensive, up-to-date compendium of solutions to this critical aspect of civil engineering. Dr. Jie Han, registered Professional Engineer and preeminent voice in geotechnical engineering, is the ultimate guide to the methods and best practices of ground improvement. Han walks you through various ground improvement solutions and provides theoretical and practical advice for determining which technique fits each situation. Follow examples to find solutions to complex problems Complete homework problems to tackle issues that present themselves in the field Study design procedures for each technique to simplify field implementation Brush up on modern ground improvement technologies to keep abreast of all available options Principles and Practice of Ground Improvement can be used as a textbook, and includes Powerpoint slides for instructors. It's also a handy field reference for contractors and installers who actually implement plans. There are many ground improvement solutions out there, but there is no single right answer to every situation. Principles and Practice of Ground Improvement will give you the information you need to analyze the problem, then design and implement the best possible solution.
Author : United States. Federal Highway Administration
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (14 download)
Download or read book Intelligent Compaction written by United States. Federal Highway Administration and published by . This book was released on 2013 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Technical Brief provides information that targets what an Executive level person in a state DOT would need to know to understand the advantages and reasons for using Intelligent Compaction equipment to construct highway aggregate bases and for construction of asphalt pavements. Use of this technology can improve pavement performance and extend the life of the pavement.
Author : Phillip Dunston
Publisher :
ISBN 13 : 9781622604807
Total Pages : pages
Book Rating : 4.6/5 (48 download)
Download or read book Proof Rolling of Foundation Soil and Prepared Subgrade During Construction written by Phillip Dunston and published by . This book was released on 2018-02 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 16. AbstractProof rolling provides a method to examine the entire subgrade surface as a compliment to standard random acceptance testing. Proof rolling requires established criteria that account for the interplay of equipment parameters and soil characteristics, technique, and other specifics of the project to allow for proper interpretation. The researchers concluded that proof rolling is not appropriate for determining soil elastic properties, while it can reveal in situ strength properties. No information from state highway agencies (SHA) publications or interviews reports using proof rolling other than for the evaluation of the subgrade. Only eight SHA¿s have notable specifications or other supporting documents containing significant guidance or criteria. The requirements provided for use of either of two equipment types¿tandem-axle rear dump trucks and chariot-style rollers¿and a range of evaluation criteria based on soil type and whether the project is new construction or re-construction. Recommendations provided fall within parameters practiced by states that have the most well-developed specifications and practices for proof rolling. The recommendations include: evaluation is of the subgrade only and the equipment shall be either a tandem-axle rear dump truck or a tri-axle rear dump truck (with raised third axle) loaded to a minimum gross weight of 20 tons. The chariot-style roller loaded to a minimum gross weight of 40 tons could be alternatively specified. The test shall be a single pass in each traffic lane with the passing criteria of a 1¿ deflection for new construction and 1⁄2¿ deflection for re-constructed or stabilized subgrade, as well as the absence of pumping and cracking.
Author : David J. White (Ph. D.)
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (1 download)
Download or read book Report of the Workshop on Intelligent Compaction for Soils and HMA written by David J. White (Ph. D.) and published by . This book was released on 2008 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document summarizes the discussion and findings of a workshop on intelligent compaction for soils and hot-mix asphalt held in West Des Moines, Iowa, on April 2-4, 2008. The objective of the meeting was to provide a collaborative exchange of ideas for developing research initiatives that accelerate implementation of intelligent compaction (IC) technologies for soil, aggregates, and hot mix asphalt. Technical presentations, working breakout sessions, a panel discussion, and a group implementation strategy session comprised the workshop activities. About 100 attendees representing state departments of transportation, Federal Highway Administration, contractors, equipment manufacturers, and researchers participated in the workshop.
Author :
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (891 download)
Download or read book Evaluation of Intelligent Compaction Technology for Densification of Roadway Subgrades and Structural Layers written by and published by . This book was released on 2010 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Buddhima Indraratna
Publisher : Butterworth-Heinemann
ISBN 13 : 0081006993
Total Pages : 797 pages
Book Rating : 4.0/5 (81 download)
Download or read book Ground Improvement Case Histories written by Buddhima Indraratna and published by Butterworth-Heinemann. This book was released on 2015-06-16 with total page 797 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an international group of contributors, Ground Improvement Case Histories: Compaction, Grouting and Geosynthetics provides over 700 pages of international case-histories. Each case-history provides an overview of the specific technology followed by applications, with some cases offering a comprehensive back-analysis through numerical modelling. Specific case-histories include: The Use of Alternative and Improved Construction Materials and Geosynthetics in Pavements, Case Histories of Embankments on Soft Soils and Stabilisation with Geosynthetics, Ground Improvement with Geotextile Reinforcements, Use of Geosynthetics to aid Construction over Soft Soils and Soil Improvement and Foundation Systems with Encased Columns and Reinforced Bearing Layers. - Comprehensive analysis methods using numerical modelling methods - Features over 700 pages of contributor generated case-histories from all over the world - Offers field data and clear observations based on the practical aspects of the construction procedures and treatment effectiveness
Author : David J. White (Ph. D.)
Publisher :
ISBN 13 :
Total Pages : 412 pages
Book Rating : 4.:/5 (153 download)
Download or read book Field Validation of Intelligent Compaction Monitoring Technology for Unbound Materials written by David J. White (Ph. D.) and published by . This book was released on 2007 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The successful implementation of intelligent compaction technology into earthwork construction practice requires knowledge of the roller-integrated compaction measurements and their relationships with the engineering and index properties of soil that may be used for pavement design (e.g. California bearing ratio, elastic modulus, resilient modulus). These relationships were studied at three earthwork construction projects in Minnesota. In these field studies, intelligent compaction and in-situ test data were collected to demonstrate use of the various technologies, characterize the variation associated with each measurement system, and ultimately aid performance of regression analyses. For the pilot study at TH 64, a GIS database was created with roller data and parallel quality assurance data to demonstrate one method for managing large quantities of data. Spatial statistics were also determined using variogram modeling and discussed with regards to their potential for characterizing uniformity. A laboratory compaction study using different compaction methods (e.g. static, impact, gyratory, and vibratory) was conducted to show different moisture-density-compaction energy relationships for granular and cohesive soils. Resilient modulus test results showed that vibratory and impact compaction methods produce higher-modulus samples than static compaction. The findings from field studies of intelligent compaction systems provide the basis for developing QC/QA guidelines regarding effective and appropriate use of the technology. These recommendations, along with a brief summary of European specifications for continuous compaction control, are provided in the report.
Author : John Harvey
Publisher : CRC Press
ISBN 13 : 1000201724
Total Pages : 557 pages
Book Rating : 4.0/5 (2 download)
Download or read book Pavement, Roadway, and Bridge Life Cycle Assessment 2020 written by John Harvey and published by CRC Press. This book was released on 2020-07-02 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: An increasing number of agencies, academic institutes, and governmental and industrial bodies are embracing the principles of sustainability in managing their activities. Life Cycle Assessment (LCA) is an approach developed to provide decision support regarding the environmental impact of industrial processes and products. LCA is a field with ongoing research, development and improvement and is being implemented world-wide, particularly in the areas of pavement, roadways and bridges. Pavement, Roadway, and Bridge Life Cycle Assessment 2020 contains the contributions to the International Symposium on Pavement, Roadway, and Bridge Life Cycle Assessment 2020 (Davis, CA, USA, June 3-6, 2020) covering research and practical issues related to pavement, roadway and bridge LCA, including data and tools, asset management, environmental product declarations, procurement, planning, vehicle interaction, and impact of materials, structure, and construction. Pavement, Roadway, and Bridge Life Cycle Assessment 2020 will be of interest to researchers, professionals, and policymakers in academia, industry, and government who are interested in the sustainability of pavements, roadways and bridges.
