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Use of Air-Cooled Blast Furnace Slag As Coarse Aggregate in Concrete Pavements

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Use of Air-Cooled Blast Furnace Slag As Coarse Aggregate in Concrete Pavements Use of Air-Cooled Blast Furnace Slag as Coarse Aggregate in Concrete Pavements Final Report Report No. FHWA-HIF-12-008 March 2012 Notice—This report is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document. The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers' names appear in this report only because they are considered essential to the objective of the document. Quality Assurance Statement—FHWA provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement. TECHNICAL REPORT DOCUMENTATION PAGE 1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No. FHWA-HIF-12-008 4. Title and Subtitle 5. Report Date Use of Air-Cooled Blast Furnace Slag as March 2012 Coarse Aggregate in Concrete Pavements 6. Performing Organization Code: 7. Author(s) 8. Performing Organization Report No. Dennis A. Morian, P.E. Thomas Van Dam, Ph.D., P.E. Rohan Perera, Ph.D., P.E. 9. Performing Organization Name and Address 10. Work Unit No. Quality Engineering Solutions, Inc. 405 Water Street, PO Box 3004 11. Contract or Grant No. Conneaut Lake, PA 16316 DTFH61-08-D-00020-T-09001 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered Federal Highway Administration Final Report, October 2009–March 2012 1200 New Jersey Avenue, SE 14. Sponsoring Agency Code Washington, DC 20590 HIPT-20 15. Supplementary Notes FHWA Contracting Officer’s Technical Representative (COTR): Samuel S. Tyson, P.E. 16. Abstract This report presents available information regarding the use of air-cooled blast furnace slag (ACBFS) as coarse aggregate in concrete pavements. The report discusses ACBFS aggregate production and properties, and the properties of concrete produced with ACBFS coarse aggregate. Both the physical and chemical properties of ACBFS are presented, as are the properties of the concrete produced with ACBFS coarse aggregate. Additionally, the field performance of concrete pavements containing ACBFS coarse aggregate and observed material related distresses in these pavements are presented, along with results from laboratory evaluations of concrete containing ACBFS coarse aggregate. Finally, the life-cycle and maintenance costs associated with concrete pavements incorporating ACBFS aggregate in the concrete are also discussed in the report. While the available information included both domestic and international experience with the use of ACBFS aggregate in concrete, the predominance of information reviewed came primarily from States which have, or previously have had, supplies of ACBFS aggregate: Ohio, Michigan, Indiana, and New York. 17. Key Words 18. Distribution Statement Blast furnace slag, coarse aggregate, concrete No restrictions. This document is available through the pavement, concrete mix design, pavement National Technical Information Service, Springfield, performance VA 22161. 19. Security Classif. (of this report) 20. Security Classif. (of this page) 21. No. of Pages 22. Price Unclassified Unclassified 149 N/A Form DOT F 1700.7 (8-72) Reproduction of completed page authorized SI* (MODERN METRIC) CONVERSION FACTORS APPROXIMATE CONVERSIONS TO SI UNITS Symbol When You Know Multiply By To Find Symbol LENGTH in inches 25.4 millimeters mm ft feet 0.305 meters m yd yards 0.914 meters m mi miles 1.61 kilometers km AREA in2 square inches 645.2 square millimeters mm2 ft2 square feet 0.093 square meters m2 yd2 square yard 0.836 square meters m2 ac acres 0.405 hectares ha mi2 square miles 2.59 square kilometers km2 VOLUME fl oz fluid ounces 29.57 milliliters mL gal gallons 3.785 liters L ft3 cubic feet 0.028 cubic meters m3 yd3 cubic yards 0.765 cubic meters m3 NOTE: volumes greater than 1000 L shall be shown in m3 MASS oz ounces 28.35 grams g lb pounds 0.454 kilograms kg T short tons (2000 lb) 0.907 megagrams (or "metric ton") Mg (or "t") TEMPERATURE (exact degrees) oF Fahrenheit 5 (F-32)/9 or (F-32)/1.8 Celsius oC ILLUMINATION fc foot-candles 10.76 lux lx fl foot-Lamberts 3.426 candela/m2 cd/m2 FORCE and PRESSURE or STRESS lbf poundforce 4.45 newtons N lbf/in2 poundforce per square inch 6.89 kilopascals kPa APPROXIMATE CONVERSIONS FROM SI UNITS Symbol When You Know Multiply By To Find Symbol LENGTH mm millimeters 0.039 inches in m meters 3.28 feet ft m meters 1.09 yards yd km kilometers 0.621 miles mi AREA mm2 square millimeters 0.0016 square inches in2 m2 square meters 10.764 square feet ft2 m2 square meters 1.195 square yards yd2 ha hectares 2.47 acres ac km2 square kilometers 0.386 square miles mi2 VOLUME mL milliliters 0.034 fluid ounces fl oz L liters 0.264 gallons gal m3 cubic meters 35.314 cubic feet ft3 m3 cubic meters 1.307 cubic yards yd3 MASS g grams 0.035 ounces oz kg kilograms 2.202 pounds lb Mg (or "t") megagrams (or "metric ton") 1.103 short tons (2000 lb) T TEMPERATURE (exact degrees) oC Celsius 1.8C+32 Fahrenheit oF ILLUMINATION lx lux 0.0929 foot-candles fc cd/m2 candela/m2 0.2919 foot-Lamberts fl FORCE and PRESSURE or STRESS N newtons 0.225 poundforce lbf kPa kilopascals 0.145 poundforce per square inch lbf/in2 *SI is the symbol for the International System of Units. Appropriate rounding should be made to comply with Section 4 of ASTM E380. (Revised March 2003) ii TABLE OF CONTENTS CHAPTER 1. INTRODUCTION ................................................................................................ 1 Air-Cooled Blast Furnace Slag ................................................................................................... 1 Objectives of the Report ............................................................................................................. 3 CHAPTER 2. ACBFS PRODUCTION AND PROPERTIES .................................................. 5 Production of Air-Cooled Blast Furnace Slag ............................................................................ 5 Physical Properties of Air-Cooled Blast Furnace Slag ............................................................... 9 Summary ................................................................................................................................... 18 CHAPTER 3. ACBFS AS COARSE AGGREGATE IN CONCRETE ................................. 19 Influence of Chemical Properties of Air-Cooled Blast Furnace Slag on Concrete .................. 19 Iron and Dicalcium Silicate Unsoundness ............................................................................ 19 Calcium Sulfide .................................................................................................................... 20 Summary of Chemical Properties ......................................................................................... 28 Influence of Physical Properties of Air-Cooled Blast Furnace Slag on Concrete .................... 29 Influence on Fresh Concrete Properties ................................................................................ 29 Influence on Hardened Concrete........................................................................................... 30 Summary of Physical Properties ........................................................................................... 45 HIPERPAV® Software ............................................................................................................. 46 International Standards for Use of Air-Cooled Blast Furnace Slag in Concrete ...................... 47 Japanese Standards ................................................................................................................ 47 British/European Standards .................................................................................................. 49 Australian Standard ............................................................................................................... 50 Summary of International Standards..................................................................................... 51 CHAPTER 4. USE OF ACBFS IN PAVING CONCRETE IN MICHIGAN ....................... 53 Field Studies of Concrete Pavements Made with Air-Cooled Blast Furnace Slag ................... 54 Willow Run and Detroit Industrial Expressway Systems ..................................................... 55 Dix Highway—From US-24 to Ecorse ................................................................................. 56 Gratiot Avenue—8 Mile Road to 13 Mile Road ................................................................... 57 US-23 Aggregate Test Road ................................................................................................. 57 Michigan State University Study .......................................................................................... 61 I-75 Goddard to Sibley Road ................................................................................................ 62 Evaluations of Jointed Plain Concrete Pavement Performance ............................................ 63 Maintenance Cost Comparison ................................................................................................. 65 Performance of Concrete Pavements on Stabilized Bases .......................................................
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