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  • Final Report Prepared for Missouri Department of Transportation 2012 August Project TRyy1103 Report cmr 13-003

    Self-Consolidating Concrete (SCC) for Infrastructure Elements

    Report D Creep, Shrinkage and Abrasion Resistance

    Prepared By:

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    FINALReportD

    TRyy1103

    ProjectTitle:SelfConsolidatingConcrete(SCC)forInfrastructureElements

    ReportD:SelfConsolidatingConcrete(SCC)forInfrastructureElements:Creep,ShrinkageandAbrasionResistance

    Prepared for Missouri Department of Transportation

    Construction and Materials

    Missouri University of Science and Technology, Rolla, Missouri

    July 2012 The opinions, findings, and conclusions expressed in this publication are those of the principal investigators and the Missouri Department of Transportation. They are not necessarily those of the U.S. Department of Transportation, Federal Highway Administration. This report does not constitute a standard or regulation .

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    ABSTRACT

    Concrete specimens were fabricated for shrinkage, creep, and abrasion resistance

    testing. Variations of self-consolidating concrete (SCC) and conventional concrete were

    all tested. The results were compared to previous similar testing programs and used to

    determine the adequacy of the materials for use in practice.

    The testing program consisted of normal strength (6000 psi) and high strength

    (10,000 psi) variations of SCC and conventional concrete.

    All specimens were tested for compressive strength, modulus of elasticity,

    shrinkage strain, creep strain, and abrasion resistance. All tests were performed

    according to their respective ASTM standard methods. In general, SCC performed well

    relative to conventional concrete at high strengths, but not as well at normal strengths for

    shrinkage and creep.

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    TABLE OF CONTENTS

    Page

    ABSTRACT ....................................................................................................................... iii

    LIST OF ILLUSTRATIONS ............................................................................................ vii

    LIST OF TABLES ............................................................................................................. ix

    NOMENCLATURE ........................................................................................................... x

    1. LITERATURE REVIEW ........................................................................................ 1

    SECTION

    1.1. SELF-CONSOLIDATING CONCRETE (SCC) ................................................ 1

    1.1.1. Definition of SCC ..................................................................................... 1

    1.1.2. Advantages of SCC .................................................................................. 1

    1.2. SHRINKAGE OF CONCRETE ......................................................................... 1

    1.2.1. Definition of Shrinkage ............................................................................ 1

    1.2.2. Factors Affecting Shrinkage ..................................................................... 2

    1.3. SHRINKAGE MODELS. ................................................................................... 4

    1.3.1. ACI 209R-92 ............................................................................................ 4

    1.3.2. NCHRP Report 496 (2003) ...................................................................... 8

    1.3.3. Model B3 ................................................................................................ 10

    1.3.4. CEB-FIP 90 ............................................................................................ 11

    1.3.5. GL 2000 .................................................................................................. 12

    1.4. SCC SHRINKAGE RESEARCH ..................................................................... 13

    1.4.1. NCHRP Report 628 (2009) .................................................................... 14

    1.4.2. Shindler, et. al. ........................................................................................ 14

    1.4.3. Fernandez-Gomez and Landsberger ....................................................... 15

    1.4.4. Long, et. al. ............................................................................................. 15

    1.5. CREEP OF CONCRETE .................................................................................. 16

    1.5.1. Definition of Creep ................................................................................. 16

    1.5.2. Factors Affecting Creep ......................................................................... 17

    1.6. CREEP MODELS ............................................................................................. 18

    1.6.1. ACI 209R-92 .......................................................................................... 18

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    1.6.2. NCHRP Report 496 ................................................................................ 20

    1.6.3. CEB-FIP 90 ............................................................................................ 21

    1.6.4. GL 2000 .................................................................................................. 22

    1.7. SCC CREEP RESEARCH ................................................................................ 23

    1.7.1. NCHRP Report 628 ................................................................................ 23

    1.7.2. Long and Khayat .................................................................................... 24

    1.7.3. Long, et. el. ............................................................................................. 24

    1.8. Application of Shrinkage and Creep ................................................................. 24

    1.8.1. Prestress Loss ......................................................................................... 24

    1.8.2. Load Effects ........................................................................................... 26

    1.8.3. Beam Deflection ..................................................................................... 26

    1.9. CONCRETE ABRASION ................................................................................ 27

    1.9.1. Definition of Concrete Abrasion ............................................................ 27

    1.9.2. Factors Affecting Concrete Abrasion ..................................................... 27

    1.10. SCC ABRASION RESEARCH ...................................................................... 27

    2. RESEARCH PROGRAM ..................................................................................... 28

    2.1. MIX DESIGNS ................................................................................................. 28

    2.1.1. SCC.. ...................................................................................................... 28

    2.2. SHRINKAGE AND CREEP SPECIMEN CONSTRUCTION ........................ 29

    2.2.1. Shrinkage and Creep Specimens ............................................................ 29

    2.2.2. Shrinkage and Creep Molds ................................................................... 30

    2.2.3. Shrinkage and Creep Specimen Casting ................................................ 31

    2.2.4. Shrinkage and Creep De-Molding and Preparation ............................... 31

    2.2.5. Shrinkage and Creep Data Acquisition .................................................. 31

    2.3. ABRASION SPECIMEN CONSTRUCTION ................................................. 32

    2.4. TESTING PROCEDURES ............................................................................... 33

    2.4.1. Shrinkage Testing Procedures ................................................................ 33

    2.4.2. Creep Testing Procedures ....................................................................... 36

    2.4.3. Abrasion Resistance Testing Procedures ............................................... 39

    3. SCC RESULTS AND DISCUSSION ................................................................... 43

    3.1. SHRINKAGE ................................................................................................... 43

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    3.1.1. Results .................................................................................................... 43

    3.1.2. Discussion and Conclusions ................................................................... 43

    3.2. CREEP .............................................................................................................. 52

    3.2.1. Results .................................................................................................... 52

    3.2.2. Discussion and Conclusions ................................................................... 53

    3.3. ABRASION RESISTANCE ............................................................................. 57

    3.3.1. Results .................................................................................................... 57

    3.3.2. Discussion and Conclusions ................................................................... 60

    APPENDICES

    A. SHRINKAGE WITH RELATIVE HUMIDITY DATA ...................................... 62

    B. EXAMPLE STRAIN CALCULATIONS ............................................................ 67

    C. COEFFICIENT OF VARIATION DATA ........................................................... 70

    BIBLIOG

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