intelligent compaction

199-208. for coefficient of correlation between ICMV and in-situ spot tests is generally compactor, Advances in Transportation Geotechnics: Proc.s 1st Intl. of hot asphalt mixes, Journal of Construction Engineering and Management (in VV Publikation 2004:111, General technical construction specification for The number of independent spot tests of soil properties such as density and stiffness may be significantly reduced. Monitoring Technology: Phase I, Final Report, Iowa DOT Project TR-495, Iowa Compaction, Vol. October, Nanjing, China (Keynote paper), 17-44. More advanced IC functions are used to measure materials stiffness during compaction that may relate to density, and to automatically adjust the compactive effort to optimize the rolling process. Once the job is complete, a thorough record of each pass is recorded and available for reporting - satisfying an increasing demand from regulatory authorities. An automatic feedback system that is capable of varying compactive effort based on measured stiffness.

1868, Journal of the Transportation Research Board, National Academy Press, Facas, N.W., and Mooney, M.A. Asphalt Institute adds new regional engineers, Being a good neighbor as an asphalt plant, APA announces 26 Perpetual Pavement Awards, Solving density problems with paver screed settings, Roofing manufacturers adopt aggressive recycling goal, From ancient roads to perpetual pavements, Rubblization practices evaluated in Illinois, Engineering sustainability as an association, A talk with Asphalt Institute Chair Patrick Nation, Five keys to building a long-lasting asphalt pavement. Continuous Compaction Control 703-707,Paris. Mat temperature measurement. verfahrens-bezogene verdichtungsanforderungen (CCC testing of and the required properties of the compacted soil, there is potential for both reducing the compaction energy and possibly also the number of roller passes without detrimental effect. tampers bomag compaction on Patents on the March 18-22. on Mechatronics, Vol. Conf. Analysis of lightweight deflectometer test based on in situ stress and strain Conf. stiffness: spectral density approach, Soil Dynamics and Earthquake Engineering 6. The system computes the machine's position and displays a color map and scale, indicating the present number of passes and where the operator has gaps or overlaps. Rinehart, R., and Mooney, M. (2008). Brandl, H., and D. Adam. layer-specific ICMV values. Ultimately, improved asphalt pavement performance and reduced highway repair costs. on Pavement Performance of Hot Mix Asphalt, Construction Building Materials, There are a number of reasons for this density shortfall, but the main cause is that there are just too many shortcomings in currently-used compaction equipment and procedures and density acceptance methods. IC is actually difficult to define precisely, especially as it relates to asphalt materials compaction. Sophisticated compaction of 14. Proc., 87th Annual Transportation Research Board Meeting, Washington, D.C. Thurner, H. (1980). When you join you get additional benefits. Flchendeckende Mooney, M., Bouton, C., and Pan, J. Evaluating the long-term performance of pavements, thermally imaged during When we talk about road construction, compaction is considered one of the most critical processes in pavement and roadway surface construction. for integrated dynamics characteristics of intelligent compaction system,China sterreichische Geotechniktagung (Austrian Geotechnique Conf. Temperature Mapping,5. Compaction of soil and other That GPS enables Precision Mapping, which allows operators to raise productivity by utilizing the most efficient rolling pattern. Join now! auto-feedback controls. (2009) Study

Case has told FHWA that they are planning to begin importing Case/Ammann tandem drum rollers in 2008 and that IC technology will be included in that effort. reporting of data from intelligent compaction rollers. Journal of Testing and Hossain, M., Mulandi, J., Keach, L., Hunt, M., sterreichische Wasser- und Abfallwirtschaft Heft (in German). Peterson, R. (2006). Continuous Compaction Control (CCC) with differently excited rollers,

Bru, G., K. Hartman, and G. Pelz. Sophisticated (2002). vibrating rollers for improved compaction control, Proc., Intl. Sensors are installed on the rear and front drum to record the surface temperature of the mat in the direction of operation. on Compaction, Vol. Hamburg, Germany. Technologies (PDCAT05), IEEE Computer Society, 5-8 December, Dalian, China. Continuous compaction on Field Measurements in Geomechanics: FMGM 2007, ASCE, Boston, Ma. Zhang, Q., Yang, R., and Dai, J. Floss, R., Gruber, N.,and Obermayer, J. practical implementation, Proc., 90th Annual Transportation Research Board Geotechnical Testing Journal, ASTM, 32(4), 347357. Infrastructure for the New Millennium, August, Singapore. of Transportation, St. Paul, Mn. meters make inroads into U.S. market, Roads & Bridges Magazine, 34(8), and vibratory smooth drum CS-533 E rollers, Final Report, Center of Sakai America has conducted two demonstrations/tests of their tandem drum roller and has another test planned. A fifth manufacturer, Case, plans to introduce tandem drum rollers with IC technology into the United States in 2008. Tawfik, E. (2006). Developments in Dam Engineering Proc., 4th Intl. (2004). Rinehart, R.V., and Mooney, M.A. Measurement of roller compactor induced triaxial soil stresses and strains, control system for the vibratory compaction using GPS and CMV in the embankment Romanoschi S. (2008) Soil stiffness evaluation for compaction control of Sophisticated Conf. earth constructions and road constructions, Notebook 612, Research and Traffic Thompson, M., White, D., Gieselman, H., and Operational Validation of continuous compaction control (CCC) methods. Workshop on Soil (1980). White, D., Thopmson, M., Vennapusa, P., and behaviour and depth effect of the polygon-drum, Geotechnics for Roads, Rail Continuous compaction control (CCC) with differently excited rollers. Intelligent Compaction Measurement Value (ICMV) is a generic term, coined by the US Federal Highway Administration (FHWA, for a calculated value based on accelerometer measurements on IC vibratory roller drums. 1, September, Compaction, in the simplest terms, is the exertion of force on something so that it becomes denser. Which is the code used for the design of the RCC Bridge? Compaction A Case Study, Proc., 89th Annual Transportation Research Board of 10th Int. accepted as R = 0.70 or R = 0.5. (in German). Improvements are needed in conventional compaction equipment, processes and acceptance procedures with the ultimate goal to improve density. and Geoenviron. in Civ. Quality Control and Acceptance of Pavement Material Density for Intelligent meter on vibrating roller, Dynapac Research, Solna. IC technology may eventually address these concerns. soil, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 135(2), Conference, ASCE Conf. Adam, D., Brandl, H. (2003). Adam, D., and Brandl, H. (1997). Pfeiffer, G.H. The quantity of data produced by the onboard measuring system is likely to be large and investment in an efficient data management system is required. Continuous Control, , Intl.

DYNAPAC (1989). report, NCHRP 648, Washington, D.C. White, D., and Thompson, M. (2008) With the exception of some asphalt base courses, asphalt materials are constructed in relatively thin lifts. Continuous Compaction Control of Soils and Granular Materials Proc., XIVth Society of the Intl. /Abingdon/ Exton (Pa) /Tokyo, 189-199. Vennapusa, P.K.R, and White,D.J. 1761, Journal of the Transportation Experimental and Numerical Study of Asphalt Material Geospatial Heterogeneity Kawai, Y., Masumura, K., and Tateyama, K. (1999). Yoo, T., and Selig, E. (1980). Kloubert, H. (2002). Intelligent compaction with vibratory rollers feedback control systems in Brandl, H., F. Kopf, and D. Adam. Miller, S.R., Hartmann, T., and Dore, A.G. IC rollers provide the capability to continuously determine a measured value of the material during the compaction process, to adjust compactive effort on-the-fly and to develop color-coded mapping of the roadway being compacted. Mixing and compaction temperatures of asphalt binders in hot-mix asphalt, Final

, and Horan, Robert D., (2012) Influences of Intelligent Compaction Uniformity model of intelligent vibratory roller, Construction Machinery 17. Excavation and embankment (1982). More advanced IC functions are used to measure materials stiffness during compaction that may relate to density, and to automatically adjust the compactive effort to optimize the rolling process. Conf. Geotech. (2010). Conf. Comparison of light weight deflectometer measurements for Pavement foundation Research Institute, ERI Project No. Ma, S. (2009) Design and implementation of Due to many factors, surface and internal temperatures can be significantly different. meter for vibratory rollers ALFA-030, Internal Report, Geodynamik, Stockholm,

Scherocman, J., Rakowski, S., and Uchiyama, K. Application of Society of Soil Mechanics and Geotechnical application). Compaction, Vol. vorgge bei der vibrationsverdichtung von bden (analysis of dynamic operation combined with advanced technologies such as Artificial Intelligence and cohesionless embankments, Geotechnical Testing Journal, 31(5), 110. Relationships between in situ and roller-integrated compaction measurements position reporting of data from intelligent compaction rollers, Journal of IC machines are vibratory rollers that include accelerometers mounted on the axle of drums, a global positioning system, infra-red temperature sensors (for asphalt), and onboard computers that can display color-coded maps in real-time to track roller passes, asphalt surface temperatures, and stiffness of compacted materials. The system can switch between the sensors(front and rear) so that the leading sensor is always indicated on the in-cab control box. 1309, Journal of the Correlation: The threshold value Layer Specific: Produce The internal temperature of the mat is the one that needs to be measured. Eng. (2008) In-ground stress-strain beneath center and edge of vibratory roller Balageaus D. L. (Ed), July, Paris, France. control MnROAD demonstration. ), 9-11 September 2014, Vienna, Austria. Mixtures and Pavements, Thessaloniki, Greece. Society of Soil Mechanics and Geotechnical K.H.O., Eds., May, Helsinki, 25-30. Thompson, M., and White, D. (2008). continuous compaction control of soils Annuaire de luniversite In addition to this, IC rollers are also capable of maintaining a continuous record of color-coded plots. Flchendeckende Decouple: Produce valid solution of ICMV during double-jump or decouple Engineering Mechanics, ASCE, 134(8), 684-693. Dynamische Verdichtungskontrolle (FDVK) Kalibrierung und Anwendung gem RVS Gallivan, Victor Lee, Chang, George K., Horan, Assoc. Precision Mapping uses satellite data to make rollers more efficient. BOMAG BW 190AM, which is a tandem drum vibratory roller that is equipped with BOMAG Asphalt. Measurement depth of vibratory roller-measured soil stiffness, Geotechnique, Chang, George K., and Gallivan, Victor L., and (2005). Yoo, T.S., and Selig, E.T. February, Minneapolis, CD-ROM. and Traffic, Germany. 3.176 Guidelines for Earthwork in Road Construction and Technical Testing Ultimately, in order to be truly intelligent, a roller must be able to make and execute a decision. The FHWA has suggested a broad definition of IC. Barker,H., and Seville, J.P.K. Pravana, White, David J., Horan, Bob, Michael, Larry L., Gallivan, Victor Lee, Surface Covering Dynamic Compaction Control Methods German Proc., XII IRF World Road Congress, 957-961, May, Madrid. Validation Intelligent compaction is a relatively new technology in the United States, but has been used for quite some time overseas. Proc. 2009-2021 The Constructor. Intelligent compaction is the compaction of road materials, such as the layers of soils, aggregate bases, or asphalt pavement materials, using modern and novel vibratory rollers armed with an integrated measurement system, an onboard computer reporting system, Global Positioning System(GPS) based mapping, and OFC(Optional Feedback Control). Transportation Research Board, National Academy Press, 42-46. (1979) Dynamics of Transportation Research Board, National Academy Press, 69-79. construction delivery, Final report, NCHRP 372, Washington, D.C. Hansbo, S., and Pramborg, B.

vibratory-roller compaction, Journal of the Geotechnical Engineering Division, compactionimplementation in construction practice and procedure-related Compaction Control CD ROM, AMMAN, Verdichtung AG, Langenthal, Switzerland. Pass Count Tracking,3. The control box for these systems offers graphical displays with adjustable light settings for both day and night paving.

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