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Level one mix design : materials selection, compaction, and conditioning / by Cominsky, Ronald J.(CARDINAL)325426; Harrigan, Edward T.(CARDINAL)325419; Leahy, R. B.(Rita B.)(CARDINAL)325420; Strategic Highway Research Program (U.S.)(CARDINAL)298325; University of Texas at Austin.(CARDINAL)139409;
Includes bibliographical references (pages 119-121).Executive summary -- Development of a volumetric mix design criteria for aggregates and mixes through a modified Delphi group process -- Compaction in the Superpave system: Mix design and field control -- Mix conditioning procedures in the Superpave system -- References.This report summarizes the research devoted to three key aspects of the Superpave Level I mix design: volumetric mix design criteria for aggregates and mixes; compaction; and mix conditioning. The first chapter describes the Delphi group process that was used to select aggregate properties and specification values included in the Level I mix design procedure. Chapter 2 addresses the rationale for the selection of the gyratory compactor, its relations to field control, and validation. The final chapter summarizes the research associated with the development and validation of laboratory conditioning procedures for asphalt concrete mixes. It describes the procedures used to simulate both short- and long-term aging, as well as moisture sensitivity under repeated loading.Performed under contract no.
Subjects: SUPERPAVE.; Asphalt emulsion mixtures; Pavements, Asphalt;
Available copies: 1 / Total copies: 1
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Alyson Shotz : force of nature / by Shotz, Alyson,artist.(CARDINAL)785340; Adler, Tracy L.,curator.(CARDINAL)785339; King, Sarah S.,editor.(CARDINAL)290325; Halsey Institute of Contemporary Art,host institution.(CARDINAL)356632; Ruth and Elmer Wellin Museum of Art,host institution,organizer.(CARDINAL)785338;
Includes bibliographical references (pages 163-165).This exhibition features recent work by Brooklyn-based sculptor Alyson Shotz, whose practice examines the properties and interactions of light, gravity, mass, and space. More than fifty works in various mediums will be on view throughout, including a monumental sculptural installation, a site-specific volumetric wall drawing, a collaborative animation, digital and traditional prints, photographs, and ceramics.
Subjects: Exhibition catalogs.; Shotz, Alyson; Art, Modern; Installations (Art); Site-specific installations (Art); Large-scale sculpture; Interactive art; Ceramic sculpture; Prints; Photography; Video art;
Available copies: 1 / Total copies: 1
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Determining soil volumetric moisture content using time domain reflectometry / by Klemunes, John A.(CARDINAL)320539; United States.Federal Highway Administration.Office of Engineering Research and Development.; Turner-Fairbank Highway Research Center.(CARDINAL)286897;
Includes bibliographical references (pages 65-68).Introduction -- Literature review -- Laboratory procedure -- Phase I study -- Phase II study -- Conclusions -- Recommendations -- References.Final report;Time domain reflectometry (TDR) is a technique used to measure indirectly the in situ volumetric moisture content of soil. The purpose of this study is to enhance the predictive accuracy of in situ volumetric moisture content estimation from TDR measurements. The study is divided into two phases. The initial phase evaluates the five known methods of analyzing the apparent length of TDR responses to determine which provides the most accurate method for estimating the volumetric moisture content. Phase II, through a mixing model form, regresses the volumetric properties of the soil and the apparent length of the TDR response to obtain a predicted volumetric moisture content.Performed and sponsored by Office of Engineering R & D, Federal Highway Administration.
Subjects: Technical reports.; Soil moisture; Soil moisture;
Available copies: 1 / Total copies: 1
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Fiber-optic airmeter / by Ansari, Farhad.(CARDINAL)327889; Strategic Highway Research Program (U.S.)(CARDINAL)298325;
Project summary -- Introduction -- Measurement of entrained air in concrete -- Objectives -- System components -- Evaluation of sensor tips -- Measurement methodology -- Experimental program -- Mixture proportions -- Gravimetric method for air content -- Sieved mortar -- Experimental results -- Discussion of results -- Conclusions and recommendations -- Appendix.This report discusses a three-phase program to evaluate both acrylate-filled and diamond-tipped air meter probes as well as to gather and evaluate test results comparing fiber optic measurements of entrained air in concrete mix to gravimetric and volumetric measuring methods. The experiments indicate that while the acrylate-filled (plain-tipped) probes were effective in detecting the percentage of entrained air in the concrete mixes, the probes need to be altered to reduce the failure rate found during testing.... contract no.
Subjects: Air-entrained concrete; Concrete;
Available copies: 1 / Total copies: 1
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The volumetrics weight-control plan : feel full on fewer calories / by Rolls, Barbara J.(CARDINAL)520246; Barnett, Robert A.(CARDINAL)361086;
Subjects: Appetite.; Food; Reducing diets.;
Available copies: 1 / Total copies: 1
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Comparison of air void content measurements in fresh versus hardened concretes / by Ozyildirim, H. Celik(Hamdi Celik)(CARDINAL)311389; Virginia Transportation Research Council.(CARDINAL)195142;
Includes bibliographical references (page 15).Final report;This study compares the air content of freshly mixed and hardened concretes. At the fresh stage, pressure meters (Types A and B) and a volumetric meter were used to determine the air content. At the hardened stage, the air content was calculated using the linear traverse method described in ASTM C 457, which is a microscopical procedure. The unit weight and compressive strength of the concretes were also determined. The results show that, at the ranges commonly used in the construction of pavements and bridges, the air content of fresh concrete measured by pressure meters and that determined by the microscopical method for essentially the same concrete after hardening are, for practical purposes, the same. The air content obtained by a volumetric meter as normally run in the field is generally lower than that obtained for the same hardened concretes by the microscopical method. The unit weight and compressive strength correlate well with the air content. It was also shown that adding water to concrete can significantly increase the air content, as well as the slump. Thus, a higher air content in hardened concretes than that indicated by initial measurements with a pressure meter is likely to be present if water is added during placement.Sponsored by Virginia Department of Transportation in cooperation with the U.S. Department of Transportation, Federal Highway Administration, under contract no.
Subjects: Technical reports.; Concrete bridges; Concrete; Pavements, Concrete;
Available copies: 1 / Total copies: 1
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Pools to ponds : area, perimeter, and capacity / by Perritano, John.(CARDINAL)490236;
Includes bibliographical references (page 31) and index.iMath ideas : boxed in -- Discover activity : Measure by hand -- "Fintastic" fish -- Just ducky! -- A pool for James -- Connecting to history -- Diving into history -- Time to reflect -- Math at work -- Connecting to science -- iMath ideas : measuring the pool -- What comes next?"The mathematical concepts of perimeter, area, and volume are introduced as a child constructs ponds for fish and ducks. Readers learn the formulas for these measurements, while also learning about the history of pools and swimming. Includes a discover activity, history connection, and mathematical vocabulary introduction"--650LAccelerated Reader AR
Subjects: Area measurement; Volume (Cubic content); Volumetric analysis; Swimming pools; Public baths;
Available copies: 2 / Total copies: 2
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Volumetrics : feel full on fewer calories / by Rolls, Barbara J.(CARDINAL)520246; Barnett, Robert A.(CARDINAL)361086;
Includes bibliographical references (pages 304-314) and index.
Subjects: Reducing diets.; Food; Appetite.; Reducing diets.; Food; Appetite.;
Available copies: 5 / Total copies: 7
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Analysis of coastal sediment transport processes from Wrightsville Beach to Fort Fisher, North Carolina / by Winton, T. C.(CARDINAL)305644; Coastal Engineering Research Center (U.S.)(CARDINAL)161589; Environmental Science and Engineering, Inc.(CARDINAL)284913;
Bibliography: pages 96-97.A comprehensive engineering analysis of the coastal sediment transport processes along a 42-kilometer segment of the North Carolina shoreline from Wrightsville Beach to Fort Fisher is presented. Included in the analysis is an interpretation of the littoral processes, longshore transport, and the behavior and success of beach nourishment projects at Wrightsville Beach and Carolina Beach, North Carolina. The historical position of the MLW, MSL, and MHW contours, relative to a fixed base line, is plotted for the period between 1964 and 1975. An equivalent volumetric erosion or accretion between successive surveys is determined by multiplying the average excursion distance of the contours by a constant of proportionality. The plots of excursion distance versus time for the MLW, MSL, and MHW contours also show the time response of the beach fills. This response is described by a mathematical function. The alongshore components of wave-induced energy flux are also determined within the study area through wave refraction analysis. This information, together with the information on volumetric change, is used in a sediment budget analysis to determine the coefficient of alongshore sediment transport and the inlet trapping characteristics. (Author).
Subjects: Sediment transport; Coastal engineering;
APPROVED FOR PUBLIC RELEASE
Available copies: 1 / Total copies: 1
On-line resources: Suggest title for digitization;
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The chemical tree : a history of chemistry / by Brock, W. H.(William Hodson)(CARDINAL)526960;
Includes bibliographical references and index.
Subjects: Chemistry;
Available copies: 2 / Total copies: 3
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