Investigations of Plastic Composite Materials for Highway Safety Structures
CHAPTER 1: INTRODUCTION-continue
CHAPTER 2: BACKGROUND
Unidirectional composites
Manufacturing processes
Fatigue properties
Industrial applications of FRP composites
Recycled plastic composites (RPC)
General requirements of roadside safety hardware
Figure 6. Standard W-beam design
CHAPTER 3: FRP W-BEAM GUARDRAIL
FRP W-beam design approach
Design analysis
Figure 15. W-beam design, 12.7 mm (0.5 in.) thick, using FRP composite
Test specimen fabrication
Figure 16. Dimensions of the coupon test specimens
Table 3. Sequential tests of tensile coupons to develop optimum layup for the FRP W-beam
Spliced bolt tension tests
Figure 22. Bolt pull-out test
Flexural tests
Cold weather exposure test
Table 5. Comparison of steel and FRP W-beams of different thicknesses
Impact test
Discussion - CR98_070035
Discussion-continue - CR98_070036
CHAPTER 4: RECYCLED PLASTIC COMPOSITE GUARDRAIL POSTS
Initial tests
Figure 38. Compression test results of the initial RPC specimens
Compression testing
Table 7. Compression testing of RPC specimens
Figure 44. Stress-strain data of the RPC at room temperature
Figure 45. Stress-strain data of the RPC at low temperature (30C, 22F)
Tension testing
Figure 48. Tensile test specimens for the RPC material
Figure 51. Results of tensile tests of the RPC
Flexural testing - CR98_070047
Table 9. Three-point flexural test results of the RPC
Discussion - CR98_070049
Table 13. Summary of all RPC test data
Figure 55. Use of RPC as a blockout material in a highway
CHAPTER 5: CREEP STUDY OF FRP COMPOSITE REBARS FOR CONCRETE
Test description
Table 15. Mechanical characteristics of composite rebars
Figure 59. Creep test platform with six creep test fixtures
Table 16. FRP rebar creep test data at 49C
Analysis and discussion - CR98_070057
CHAPTER 6: FRP COMPOSITE BREAKAWAY COUPLERS
Notched bar impact test
Thread cutting and fabrication
Tension tests of the breakaway coupler
CHAPTER 7: FRP COMPOSITES FOR CRUSHABLE CUSHIONS
Conceptual design
Figure 75. Details of the leaf spring and its T-groove on he inner facing
Discussion - CR98_070065
CHAPTER 8: GENERAL REMARKS AND RECOMMENDATIONS
CHAPTER 8: GENERAL REMARKS AND RECOMMENDATIONS-continue - CR98_070067
CHAPTER 8: GENERAL REMARKS AND RECOMMENDATIONS-continue - CR98_070068
LITERATURE CITED - CR98_070069
LITERATURE CITED-continue - CR98_070070
LITERATURE CITED-continue - CR98_070071
LITERATURE CITED-continue - CR98_070072
APPENDIX A. Continued - CR98_070073
APPENDIX A. Continued - CR98_070074
APPENDIX A. Continued - CR98_070075
APPENDIX A. Continued - CR98_070076
APPENDIX A. Continued - CR98_070077
APPENDIX A. Continued - CR98_070078
APPENDIX A. Continued - CR98_070079
APPENDIX A. Continued - CR98_070080
APPENDIX A. Continued - CR98_070081
APPENDIX A. Continued - CR98_070082
APPENDIX B: CRASH TESTING OF RPC POSTS AND BLOCKOUTS
Report Documentation Page - CR98_070084
CR98_07
CHAPTER 1: INTRODUCTION-continue
CHAPTER 2: BACKGROUND
Unidirectional composites
Manufacturing processes
Fatigue properties
Industrial applications of FRP composites
Recycled plastic composites (RPC)
General requirements of roadside safety hardware
Figure 6. Standard W-beam design
CHAPTER 3: FRP W-BEAM GUARDRAIL
FRP W-beam design approach
Design analysis
Figure 15. W-beam design, 12.7 mm (0.5 in.) thick, using FRP composite
Test specimen fabrication
Figure 16. Dimensions of the coupon test specimens
Table 3. Sequential tests of tensile coupons to develop optimum layup for the FRP W-beam
Spliced bolt tension tests
Figure 22. Bolt pull-out test
Flexural tests
Cold weather exposure test
Table 5. Comparison of steel and FRP W-beams of different thicknesses
Impact test
Discussion - CR98_070035
Discussion-continue - CR98_070036
CHAPTER 4: RECYCLED PLASTIC COMPOSITE GUARDRAIL POSTS
Initial tests
Figure 38. Compression test results of the initial RPC specimens
Compression testing
Table 7. Compression testing of RPC specimens
Figure 44. Stress-strain data of the RPC at room temperature
Figure 45. Stress-strain data of the RPC at low temperature (30C, 22F)
Tension testing
Figure 48. Tensile test specimens for the RPC material
Figure 51. Results of tensile tests of the RPC
Flexural testing - CR98_070047
Table 9. Three-point flexural test results of the RPC
Discussion - CR98_070049
Table 13. Summary of all RPC test data
Figure 55. Use of RPC as a blockout material in a highway
CHAPTER 5: CREEP STUDY OF FRP COMPOSITE REBARS FOR CONCRETE
Test description
Table 15. Mechanical characteristics of composite rebars
Figure 59. Creep test platform with six creep test fixtures
Table 16. FRP rebar creep test data at 49C
Analysis and discussion - CR98_070057
CHAPTER 6: FRP COMPOSITE BREAKAWAY COUPLERS
Notched bar impact test
Thread cutting and fabrication
Tension tests of the breakaway coupler
CHAPTER 7: FRP COMPOSITES FOR CRUSHABLE CUSHIONS
Conceptual design
Figure 75. Details of the leaf spring and its T-groove on he inner facing
Discussion - CR98_070065
CHAPTER 8: GENERAL REMARKS AND RECOMMENDATIONS
CHAPTER 8: GENERAL REMARKS AND RECOMMENDATIONS-continue - CR98_070067
CHAPTER 8: GENERAL REMARKS AND RECOMMENDATIONS-continue - CR98_070068
LITERATURE CITED - CR98_070069
LITERATURE CITED-continue - CR98_070070
LITERATURE CITED-continue - CR98_070071
LITERATURE CITED-continue - CR98_070072
APPENDIX A. Continued - CR98_070073
APPENDIX A. Continued - CR98_070074
APPENDIX A. Continued - CR98_070075
APPENDIX A. Continued - CR98_070076
APPENDIX A. Continued - CR98_070077
APPENDIX A. Continued - CR98_070078
APPENDIX A. Continued - CR98_070079
APPENDIX A. Continued - CR98_070080
APPENDIX A. Continued - CR98_070081
APPENDIX A. Continued - CR98_070082
APPENDIX B: CRASH TESTING OF RPC POSTS AND BLOCKOUTS
Report Documentation Page - CR98_070084
CR98_07
