INSIDE THE DOT
South Dakota Department of Transportation
PCCP Joint Design and Sealing Review
8/1/2008 - 7/31/2011
1 To review available literature and field performance of various concrete pavement designs, especially with regard to joint and sealant systems, to determine any possible beneficial changes to current practice.
2 To develop optimized concrete mix designs incorporating larger top size aggregate and pea gravel to provide good workability at lower cement contents and resist thermal effects.
3 To construct and evaluate appropriate JPC test sections to resolve any performance issues with regard to potential changes in design or construction
1 Review current literature with respect to performance and economical benefits of modifications to current standard JPC design and construction practices.
2 Meet with the technical panel to review project scope and work plan.
3 Develop optimized concrete mix designs using both limestone and quartzite incorporating a larger top size aggregate gradation (similar to the mix designs used for CRCP) and pea gravel or coarser sand fraction in the mix with a reduced cement content.
4 Conduct performance evaluations and load transfer testing using the SDDOT FWD on a project incorporating a reduced dowel content (US 212 west of Belle Fourche, if feasible) to determine load transfer efficiency compared to a control project to the ea
5 Conduct performance evaluations, including profilograph and profilometer measurements as well as rod and level determinations on a project incorporating a series of experimental curing compound applications (I29 north of Brookings, if feasible) to d
6 Develop an instrumentation plan for monitoring slab movement and moisture ingress for inclusion in a JPC project to be built in 2009.
7 Develop plan notes for a project on I29 south of Brookings scheduled for construction during the 2009 construction season including: · Optimized minimum cement large aggregate/pea gravel concrete mix design requirements · Hot pour and green cut (no
8 Develop plan notes for a project on I90 at Sturgis scheduled for construction during the 2009 construction season including: · Optimized minimum cement large aggregate/pea gravel concrete mix design requirements · Hot pour and green cut (no sealant
9 Conduct performance evaluations and load transfer testing using the SDDOT FWD on a project incorporating a reduced dowel content (SD 50 west of Vermillion, if feasible) planned for 2009 construction to determine load transfer efficiency compared to a
10 Provide recommendations for concrete mix design requirements using larger aggregate and pea gravel or coarse sand consistent with the SDDOT Wide Band/Narrow Band concrete mix requirements under development. These recommendations should also include a
11 Provide recommendations for alterations in current JPC design and material requirements based on the results of the research with the proviso that any modifications to current practice result in equivalent or improved pavement performance.
12 Prepare a final report and executive summary of the research methodology, findings, conclusions, and recommendations.
13 Make an executive presentation to the SDDOT Research Review Board at the conclusion of the project.
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