Bai, Y and Amirkhanian, S N (1994) Knowledge-based expert system for concrete mix design. Journal of Construction Engineering and Management, 120(2), pp. 357-373. ISSN 0733-9364
Abstract
In the United States, the American Concrete Institute method (ACI 211) is the most widely used concrete mix design. However, ACI 211 does not consider all factors regarding concrete mix design. The acceptance of a freshly mixed concrete depends on concrete quality control test results. If the results indicate that the concrete does not meet the specification, mix design adjustment must be made. Concrete mix design and adjustment are somewhat complicated and time-consuming tasks that are performed best by experienced persons. In this project, a rule-based expert system was developed to assist the user in concrete mix design, including the necessary adjustments to the design. The expert system can handle mix designs for normal-weight concrete, normal-weight-mass concrete, normal-weight no-slump concrete, heavyweight concrete, and lightweight concrete. Besides workability, consistency, strength, durability, and density, the expert system considers other criteria such as admixtures, transportation, and air temperature that affect the concrete mix design. The system was tested on three projects. The system’s selection of concrete proportions compared favorably with the experts' selections.
| Item Type: | Article |
|---|---|
| Index terms: | expert system, density, durability, admixture, quality control, specification, United States, mix design, air temperature, workability |
| Subjects: | project delivery, concrete and cementitious materials, data management, contractual condition, Geography, analytical methods, design methods, material degradation and durability, environmental engineering, materials science |
| Topics: | Engineering Principles, Contract Administration, Geographical Context, Sustainability, Design Practice, Quality Management, Construction Materials, Urban Studies, Digital Applications |
| Descriptive scope: | 2 PC |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here