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Several prototype databases have been developed and included in the current version of the CIKS. The first is a simple bibliographical listing of recent articles dealing with the penetration of chloride ions into cement-based materials and can be accessed via item 7 of the CIKS main menu. It should be noted that this database actually resides on a different computer at NIST than the CIKS itself, illustrating the access of a distributed system of knowledge using the World Wide Web.
The second database, a portion of which is shown in Fig. 6, is a compilation of concrete chloride ion diffusivity coefficients available in the literature, along with mixture proportions and curing times, when provided in the original references. This database is accessible from both the form for predicting chloride ion diffusivity from mixture proportions and the form for estimating the chloride ion ingress profile, as described previously. Within this database, clicking on a highlighted reference number will show the complete bibliographic reference for the chosen data set. If the name of one of the authors is highlighted in a reference listing, clicking on the name will access a final database, which provides an alphabetical listing of researchers active in the field of chloride ion diffusion in concrete, including their mailing addresses.