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209.2R-08 Guide for Modeling and Calculating Shrinkage and Creep in Hardened Concrete, 2008
- MAIN MENU
- CONTENTS
- CHAPTER 1— INTRODUCTION AND SCOPE [Go to Page]
- 1.1— Background
- 1.2—Scope
- 1.3—Basic assumptions for development of prediction models [Go to Page]
- 1.3.1 Shrinkage and creep are additive
- 1.3.2 Linear aging model for creep
- 1.3.3 Separation of creep into basic creep and dryingcreep
- 1.3.4 Differential shrinkage and creep or shrinkage andcreep gradients are neglected
- 1.3.5 Stresses induced during curing phase are negligible
- CHAPTER 2— NOTATION AND DEFINITIONS [Go to Page]
- 2.1— Notation
- 2.2—Definitions
- CHAPTER 3— PREDICTION MODELS [Go to Page]
- 3.1— Data used for evaluation of models
- 3.2—Statistical methods for comparing models
- 3.3—Criteria for prediction models
- 3.4—Identification of strains
- 3.5—Evaluation criteria for creep and shrinkage models
- CHAPTER 4— MODEL SELECTION [Go to Page]
- 4.1—ACI 209R-92 model
- 4.2—Bazant-Baweja B3 model
- 4.3—CEB MC90-99 model
- 4.4—GL2000 model
- 4.5—Statistical comparisons
- 4.6—Notes about models
- CHAPTER 5— REFERENCES [Go to Page]
- 5.1— Referenced standards and reports
- 5.2—Cited references
- APPENDIX A— MODELS [Go to Page]
- A.1— ACI 209R- 92 model [Go to Page]
- A.1.1 Shrinkage
- A.1.2 Compliance
- A.2—Bazant-Baweja B3 model [Go to Page]
- A.2.1 Shrinkage
- A.2.2 Compliance
- A.3—CEB MC90-99 model [Go to Page]
- A.3.1 Shrinkage CEB MC90
- A.3.2 Shrinkage CEB MC90-99
- A.3.3 Compliance
- A.4—GL2000 model [Go to Page]
- A.4.1 Relationship between specified and mean compressivestrength of concrete
- A.4.2 Modulus of elasticity
- A.4.3 Aggregate stiffness
- A.4.4 Strength development with time
- A.4.5 Shrinkage
- A.4.6 Compliance equations
- APPENDIX B— STATISTICAL INDICATORS [Go to Page]
- B.1—BP coefficient of variation
- B.2—CEB statistical indicators [Go to Page]
- B.2.1 CEB coefficient of variation
- B.2.2 CEB mean square error
- B.2.3 CEB mean deviation
- B.3—The Gardner coefficient of variation (
- APPENDIX C— NUMERIC EXAMPLES [Go to Page]
- C.1—ACI 209R-92 model solution [Go to Page]
- C.1.1 Estimated concrete properties
- C.1.2 Estimated concrete mixture
- C.1.3 Shrinkage strains εsh(t,tc)
- C.1.4 Compliance J(t,to)
- C.2—Bazant-Baweja B3 model solution [Go to Page]
- C.2.1 Estimated concrete properties
- C.2.2 Estimated concrete mixture
- C.2.3 Shrinkage strains εsh(t,tc)
- C.2.4 Compliance J(t,to) = q1 + Co(t,to) + Cd(t,to,tc)
- C.3—CEB MC90-99 model solution [Go to Page]
- C.3.1 Estimated concrete properties
- C.3.2 Estimated concrete mixture
- C.3.3 CEB MC90 shrinkage strains εsh(t,tc)
- C.3.4 CEB MC90-99 shrinkage strains εsh(t,tc)
- C.3.5 Compliance J(t,to)
- C.4—GL2000 model solution [Go to Page]
- C.4.1 Estimated concrete properties
- C.4.2 Estimated concrete mixture
- C.4.3 Shrinkage strains εsh(t,tc)
- C.4.4 Compliance J(t,to)
- C.5—Graphical comparison of model predictions [Go to Page]
- C.5.1 Shrinkage strains εsh(t,tc)
- C.5.2 Compliance J(t,to) [Go to Page]