An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
COST (Concrete Optimization Software Tool) is an online design/analysis system to assist concrete producers, engineers and researchers in determining optimal mixture proportions for concrete.
eVCCTL Software The educational version of the Virtual Cement and Concrete Testing Laboratory (eVCCTL) software provides a virtual testing laboratory environment that can be used by concrete scientists, engineers, and technologists to explore the properties of cement paste and concrete materials.
4sight The 4SIGHT computer program combines electro-diffusive transport, permeation, and chemical reaction to predict the ingress of external species dissolved in the aqueous solution that is in contact with the concrete. As species in solution reaction with the mineral phases within the microstructure (dissolution/precipitation), the porosity changes, thus changing the transport coefficient. The service life is defined as the time required for chlorides to reach a critical threshold concentration at the depth of the steel reinforcement