Computer Programming Development for Interpreting Compaction Test
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The objective of this research was to develop a computer program which used for determining the compaction parameters from compaction testing results. Visual basic programming was used for creating the graphical user interfaces, interpreting the testing data and displaying the results. Database file in format of Microsoft access which was created by using SQL language was used as data storage file. Compaction curves were performed by using numerical methods which were cubic spline interpolation, a third-order polynomial regression and a fourth-order polynomial regression. According to the results, users can choose the method of curve drawing by themselves. This developed program can display the results in both screen and print out. Moreover, users can browse the existing data files and edit them. The results and compaction curves were validated with comparing to hand calculation and Microsoft Excel operation.