Upcoming Projects
The following are a list of current applied research needs related to concrete pavement airfields. This is only a partial list and is subject to change through discussion with the ACPTP program coordination group and/or technical advisory committee.
ACPTP- Procedures for Utilization of Innovative Cementitious Binders
Cement manufacturers are developing new products in which cement clinker is being replaced with alternative materials like calcined clay, limestone, and pozzolans. These materials will likely exhibit performance differences in concrete pavement in terms of:
- Set Time
- Air entrainment
- Bleeding
- Strength gain
- Modulus of elasticity
- Permeability
- Sulfate expansion
- Calcium oxychloride resistance
- Shrinkage
New protocols are needed to consistently characterize individual products and their impacts on concrete pavements. In addition, pavement structural models, design procedures, construction practices, and acceptance limits need to be modified to accommodate the differences. Research is needed to address these issues and to assess if recommended and appropriate changes are needed to FAA Advisory Circulars.
Addressing the research needs for
concrete pavements at airports