is software designed to estimate the service life and life-cycle costs
of alternative concrete mixture designs proportions and and life-cycle
costs of alternative concrete mixture designs proportions and corrosion
protection systems. It follows research-based methodology developed by
the Life-365 Consortium I and II groups of companies, that gives
estimates on the effects of design, chloride exposure, environmental
temperature, high-performance concrete mixture proportions, surface
barriers, and steel types on the service life and life-cycle cost of
steel-reinforced concrete structures.
The simplistic model is a fundamental tool for design consultants
of steel-reinforced concrete structures that will be exposed to
chlorides, who wish to estimate the service life and life cycle costs of
alternative protections systems in their design.
The Life-365 Consortium
History of Life-365 Service Life Predication Model™ Development
1998, during a National Institute of Standards and Technology (NIST)
workshop the need for a consensus corrosion service life model was
1999, a consortium was formed within American Concrete Institute’s (ACI)
Strategic Development Council (SDC) to fund development of the
"Life-365" software program as the first step towards creating a
2001 Life-365 v1 is released to industry.
second consortium was formed in 2005, that would continue the
development and improvement of Life-365. The members of that
consortium are the Cement Slag Association (CSA), the Concrete
Corrosion Inhibitors Association (CCIA), the National Ready
Mixed Concrete Association (NRMCA) and the Silica Fume Association (SFA).
Transportation Research Board’s (TRB) Annual Meeting in Washington,
DC (January 2008) v2 of Life-365 is released to industry.