Impacts of Internally Cured Concrete Paving on Contraction Joint Spacing
Start date: 04/15/14
End date: 04/30/17
Report: Impacts of Internal Curing on Concrete Properties Literature Review (724.81 kb pdf) March 2015
- Iowa Department of Transportation
- Iowa Highway Research Board
About the research
Internal curing is a relatively new technique being used to promote hydration of Portland cement concretes. The application where this technology has not been investigated to any depth is in the area of pavements. It is believed that inclusion of about 20 to 30 percent lightweight fine aggregate will not only improve strength development and potential durability, but more importantly will significantly reduce shrinking and warping, thus reducing cracking risk, particularly in thinner pavements of those with relatively large panel sizes.
The aim of this work is to investigate the feasibility of such an approach, and to monitor and evaluate a section pavement built using such a system.