Concrete design and construction employ a broad and deep range of knowledge based on: specifications, codes, and standards of practice; sets of numeric data and their statistical manipulation; and models both empirical and theoretical. Knowledge-based systems provide a mechanism for integrating disparate information from specifications, databases, and models into one cohesive tool. A concrete mix design knowledge-based system, CONMIX, has been developed as a research prototype focusing on integrating specifications, data, and models. The system was developed using Level5 Object running under Windows on a 486 PC. CONMIX allows the disparate tools of 1) rule-based knowledge of trial mix design, durability, and constructability, 2) statistically manipulated databases, and 3) algorithmic material models to be brought to bear on the solution of a single concrete mix problem.

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