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(Return to Cement Hydration and Degradation Modeling Software)

WindowsTM-based software for estimating the service life of concrete pavements and bridge decks

  • Limited to degradation mechanisms of sulfate attack and freeze-thaw deterioration
  • Considers only transport due to sorption (rainfall and condensation) by partially saturated concrete
  • Uses “real” weather data from a wide variety of U.S. geographical locations



Version: 1.0

Last Updated: 2001

Type of software: Windows-based software for estimating concrete pavement and bridge deck service life



Windows 95/98/ME/2000/NT Minimum Requirements:

  • Pentium P5  (80585) – 100 MHz Processor or better
  • 64 Mbytes RAM
  • SVGA (1024x768x8bpp) or higher resolution monitor


Service Life Prediction for Concrete Pavements and Bridge Decks Exposed to Sulfate Attack and Freeze-Thaw Deterioration, Volume I: CONCLIFE User’s Manual

Service Life Prediction for Concrete Pavements and Bridge Decks Exposed to Sulfate Attack and Freeze-Thaw Deterioration, Volume II: Technical Basis for CONCLIFE: Sorptivity Testing and Computer Models


This software was developed at the National Institute of Standards and Technology by employees of the Federal Government in the course of their official duties. Pursuant to title 17 Section 105 of the United States Code, this software is not subject to copyright protection and is in the public domain. CONCLIFE is an experimental system. NIST and FHWA assume no responsibility whatsoever for its use by other parties, and make no guarantees, expressed or implied, about its quality, reliability, or any other characteristic. We would appreciate acknowledgement if the software is used.

The U.S. Department of Commerce makes no warranty, expressed or implied, to users of CONCLIFE, and accepts no responsibility for its use. Users of CONCLIFE assume sole responsibility under Federal law for determining the appropriateness of its use in any particular application, for any conclusions drawn from the results of its use, and for any actions taken or not taken as a result of analyses performed using these tools.

CONCLIFE is intended for use only by those competent in the field of concrete technology and is intended to supplement the informed judgment of the qualified user. Lack of accurate predictions by the CONCLIFE models could lead to erroneous conclusions with regard to materials selection and design. An informed user should evaluate all results.


General Information:
Dale P. Bentz, Chemical Engineer, Inorganic Materials Group 301-975-5865 Telephone

100 Bureau Drive, M/S 8615
Gaithersburg, MD 20899-8615