United States Department of Transportation
ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners.
As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
i
Influence of Internal Curing on Concrete’s Permeability in Simulated Field Conditions
-
2025-04-01
-
[PDF-857.29 KB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Edition:Draft Report 1/22 – 01/25
-
Corporate Publisher:
-
Abstract:The curing conditions stated in the AASHTO T358 standard require that concrete specimens remain fully saturated at all times in a moist room or cabinet prior to testing. These curing conditions obscure the true impact of internal curing. In order to assess the benefits of internal curing under more realistic condition, this study compared internally cured concrete’s properties under the 100% relative humidity (RH) moist room curing condition for 28 days with its properties under a hybrid curing condition, which consists of 100% RH moist room curing for the first 7 days followed by a lab environment for the next 21 days. It was found that the hybrid curing condition produced a higher compressive strength than the 100% RH moist room curing condition, with the exceptions of the mixtures 50TI/50S/0ICA (w/cm of 0.35) and 50TI/50S/250ICA (w/cm of 0.45). The application of saturated fine internal curing aggregates (ICAs) reduced the compressive strength magnitude variation between the two different curing conditions. At the age of 56 days, the mixtures with ICAs had either equal or higher surface resistivity than those without ICAs for the hybrid curing condition.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
