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Intelligent Compaction For Soils And Subbase Materials
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Book Synopsis Intelligent Compaction for Soils and Subbase Materials by : United States. Federal Highway Administration
Download or read book Intelligent Compaction for Soils and Subbase Materials written by United States. Federal Highway Administration and published by . This book was released on 2010 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intelligent compaction (IC) is a construction method relatively new to the USA that uses modern vibratory rollers equipped IC components and technologies. Though used for decades in the rest of the world, the IC technology is less mature for its application in the asphalt compaction than its counter part for the soils and subbase compaction. Under the on-going FHWA/TPF IC studies, tremendous amount of knowledge has been gained on HMA IC. Components of asphalt IC include: double-drum IC rollers, roller measurement system, global position system (GPS) radio/receiver/base station, infrared temperature sensors, and integrated reporting system. Therefore, an asphalt IC roller can "adapt its behavior in response to varying situations and requirements" -being "intelligent"! There are many benefits using asphalt IC rollers. To name a few: proof rolling (mapping) to identify soft spots, achieve consistent roller patterns, monitor asphalt surface temperature (to keep up with the paver) and levels of compaction for 100% coverage area, and many more.
Book Synopsis Intelligent Compaction of Soils and Subbase Materials: a Broad Overview by : Christopher Wanamaker
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.
Book Synopsis Intelligent Soil Compaction Systems by : Michael A. Mooney
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 :United States. Federal Highway Administration. Office of Pavement Technology Publisher : ISBN 13 : Total Pages :6 pages Book Rating :4.:/5 (14 download)
Book Synopsis Intelligent Compaction for Asphalt Materials by : United States. Federal Highway Administration. Office of Pavement Technology
Download or read book Intelligent Compaction for Asphalt Materials written by United States. Federal Highway Administration. Office of Pavement Technology and published by . This book was released on 2010 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intelligent compaction (IC) is a construction method relatively new to the USA that uses modern vibratory rollers equipped IC components and technologies. Though used for decades in the rest of the world, the IC technology is less mature for its application in the asphalt compaction than its counter part for the soils and subbase compaction. Under the on-going FHWA/TPF IC studies, tremendous amount of knowledge has been gained on HMA IC. Components of asphalt IC include: double-drum IC rollers, roller measurement system, global position system (GPS) radio/receiver/base station, infrared temperature sensors, and integrated reporting system. Therefore, an asphalt IC roller can "adapt its behavior in response to varying situations and requirements" -being "intelligent"! There are many benefits using asphalt IC rollers. To name a few: proof rolling (mapping) to identify soft spots, achieve consistent roller patterns, monitor asphalt surface temperature (to keep up with the paver) and levels of compaction for 100% coverage area, and many more.
Book Synopsis Evaluation of Levels 3-4 Intelligent Compaction Measurement Values (ICMV) for Soils Subgrade and Aggregate Subbase Compaction by : George K. Chang
Download or read book Evaluation of Levels 3-4 Intelligent Compaction Measurement Values (ICMV) for Soils Subgrade and Aggregate Subbase Compaction written by George K. Chang and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intelligent compaction (IC) is a roller-based innovative technology that provides real-time compaction monitoring and control. IC can monitor roller passes, vibration frequencies/amplitudes, and stiffness-related values of compacted materials or intelligent compaction measurement Values (ICMV). Various ICMVs have been introduced since 1978. Based on the five levels of ICMV in the 2017 FHWA IC Road Map, the current implementation of ICMV in the United States has been limited to Levels 1 and 2. However, Level 1 and 2 ICMVs fail to meet the FHWA IC Road Map criteria. To achieve the full potential of IC technology, Level 3 and above ICMVs are needed to gain the confidence of agencies and industry and the adoption of IC to soil and base compaction. This project aims to (1) evaluate Level 3-4 ICMV systems against Level 1 ICMV systems for soils, subbase, and base compaction and (2) develop a blueprint for future certification procedures of IC as an acceptance tool. This study also aligns with the goals of the ongoing HWA IC for foundation study and the TPF-5(478) pooled fund study. This final report details the ICMV background, field test efforts, analysis results, and an IC specification framework for compaction acceptance.
Book Synopsis Intelligent Compaction of Soils by : Philip Dunston
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.
Book Synopsis Accelerated Implementation of Intelligent Compaction Technology for Embankment Subgrade Soils, Aggregate Base, and Asphalt Pavement Materials by : Jack H. Hansen
Download or read book Accelerated Implementation of Intelligent Compaction Technology for Embankment Subgrade Soils, Aggregate Base, and Asphalt Pavement Materials written by Jack H. Hansen and published by . This book was released on 2011 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intelligent compaction (IC) is an emerging technology, and for some applications it is mature enough for implementation in field compaction of pavement materials. The intent of this project is to realize the blueprint in the FHWA IC strategic plan. IC is a compaction technology used for materials including soils, aggregates, and asphalt mixtures, by using vibratory rollers equipped with the real-time kinematic (RTK) Global Positioning System (GPS), roller-integrated measurement system (normally accelerometer-based), feedback controls, and onboard real-time display of all IC measurements. IC technology can be used to produce uniformly compacted pavement products that perform better and last longer.
Book Synopsis Evaluation of Intelligent Compaction Technology for Densification of Roadway Subgrades and Structural Layers by :
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:
Book Synopsis Intelligent Compaction Control of Highway Embankment Soil in Kansas by : Farhana Rahman
Download or read book Intelligent Compaction Control of Highway Embankment Soil in Kansas written by Farhana Rahman and published by . This book was released on 2008 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanistic pavement design procedures based on elastic layer theory require characterization of pavement layer materials including subgrade soil. This paper discusses the subgrade stiffness measurements obtained from a new compaction roller for compaction control on highway embankment projects in Kansas. Three test sections were compacted using a single, smooth steel drum intelligent compaction (IC) roller that compacts and simultaneously measures stiffness values of the compacted soil. Traditional compaction control measurements such as, density, in-situ moisture content, soil stiffness measurements using soil stiffness gage, surface deflection tests using the Light Falling Weight Deflectometer (LFWD) and Falling Weight Deflectometer (FWD), and penetration tests using a Dynamic Cone Penetrometer (DCP), were also done. The results show that the IC roller was able to identify the locations of lower soil stiffness in the spatial direction. Thus the IC roller can be used in proof rolling. IC roller stiffness showed sensitivity to the field moisture content indicating that moisture control during compaction is critical. No universal correlation was observed among the IC roller stiffness, soil gage stiffness, backcalculated subgrade moduli from the LFWD and FWD deflection data, and the California Bearing Ratio (CBR) obtained from DCP tests. The discrepancy seems to arise from the fact that different equipment were capturing response from different volumes of soil on the same test section. Analysis using the newly released Mechanistic-Empirical Pavement Design Guide (M-EPDG) shows that pavement rutting, roughness and asphalt base thickness are significantly influenced by the subgrade strength. "Target" modulus for compaction quality control can also be obtained by this analysis.
Book Synopsis Report of the Workshop on Intelligent Compaction for Soils and HMA by : David J. White (Ph. D.)
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.
Book Synopsis Advanced Compaction Quality Control by : Carlos Zambrano
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:
Book Synopsis Compaction of Soils, Granulates and Powders by : W. Fellin
Download or read book Compaction of Soils, Granulates and Powders written by W. Fellin and published by CRC Press. This book was released on 2000-03-02 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This interdisciplinary volume comprises papers from several fields related to compaction. Topics include: soil compaction for pavements and roads; deep soil compaction by vibration, impact and underground explosion; compaction control; and compaction processes in engineering.
Book Synopsis Field Validation of Intelligent Compaction Monitoring Technology for Unbound Materials by : David J. White (Ph. D.)
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.
Book Synopsis Evaluation of Intelligent Compaction Technology in Asphalt Pavement Construction and Laboratory Compaction by : Wei Hu
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.
Book Synopsis Intelligent Compaction for Roadway Soil and Asphalt Pavement by : Christopher M. Savan
Download or read book Intelligent Compaction for Roadway Soil and Asphalt Pavement written by Christopher M. Savan and published by . This book was released on 2014 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional test methods for roadway compaction cover less than one percent of roadway; whereas, intelligent compaction (IC) offers a method to measure 100 percent of a roadway. IC offers the ability to increase compaction uniformity of soils and asphalt pavements, which leads to decreased maintenance costs and an extended service life. This thesis examines IC technology, how IC quality control and assurance specifications can encourage IC adoption, knowledge and use of IC through survey responses, and benefits and costs of IC. The surveys reveal that a majority of respondents from state departments of transportation have conducted IC demonstration projects, but questions about cost and willingness of policymakers to adopt IC remain a barrier to implementation. The benefit-cost analysis demonstrates that use of IC reduces compaction costs by as much as 54 percent and results in a $15,385 annual savings per lane mile throughout the roadway's life.
Download or read book Focus written by and published by . This book was released on 2010 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Intelligent Compaction by : United States. Federal Highway Administration
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 7 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.
