الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The manual approach to design any type of concrete mixture needs
understanding of charts, tabular data and curves in the American Concrete
Institute (ACI). This usually demands interpolations in determining some
variables which leads to human errors in tracing out and estimating values
utilized in the process of concrete mixture design. Also, it becomes a tedious task to design the concrete mixture manually. Accordingly, an optimum model of mathematical equations of concrete mixture design for the first trail batch of normal strength concrete, structural lightweight concrete and high strength concrete were developed as a replacement to the figures, charts, tabular data and curves in ACI. Moreover, a Microsoft Visual Studio file as well as GUI Development Environment based on the developed equations was presented to achieve the optimum design in addition to estimation the accurate
price of unit volume for the mentioned types of concrete mixtures. The
developed program interfaced into 34 interactive user-friendly forms to enable the user to interact with the program easily without referring to the ACI. The computerized program was verified by two methods to achieve the objectives of this study; the first method was analytical ly by designing a concrete mixture with a specified compressive strength for each type of concrete manually and compared the results to those in the program to validate the efficiency and
accuracy of the developed mathematical equations, and the second method
was experimental by casting three cubes for each mix and tested by the
compression machine after 28 days of curing, the resulted compressive
strength of cubes compared with the designated compressive strength of
program to validate the accuracy of the developed program. The results apply
a fair agreement with the idea of equality of analytical and experimental
approaches. Moreover, when executing the program, a large reduce in human
energy and time taken in concrete mix design process was observed.