CET345W - LAB 4.docx - Department of Engineering Technology...

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Department of Engineering TechnologyCET 345W Materials Testing Laboratory Experiment No. # 4 Compression and Flexure Test ofConcreteCivil Engineering TechnologyJune 17, 2018Old Dominion UniversityCivil Engineering Technology DepartmentKaufman Hall, Room 149Norfolk, VA 23529
Table of Contents1.Summary …………………………………………….……………………………22.Procedure ……….…………………………………………………………………23.Equipment ……………………..………………….………………………………34.Experiment Requirements ….……..………………………………………………. 45.Required Data ……………..…….………………….……………………………..46.Sample Calculations …..……..…….……………….……………………………..57.Data Table …….……………..…….……………….……………………………..68.Graph……………………………………………………………………………… 79.Conclusions/Analysis …………………………….……………………………….810. Appendix 1: Properties of Concrete11. Appendix 2: N/A12. References1.Summary1 | P a g e
The objective of the experiment was to run a verification of the testing machine using a dynamometer (calibration ring). Determine the percentage of error between the true load andthe indicated load for each deflection reading. Create a graph of the percent error ordinates (ordinates) against the indicated load (abscissa), show on the graph the max error permitted and describe the construction and operation of a universal testing machine. 2.Procedure1.Each test cylinder was weighed2.A quantity of melted capping compound was poured into a steel capping mold3.The test cylinder was immediately set into compound to ensure that the cylinder wasvertical with mold while pressing cylinder against upper and lower “V” blocks4.Cylinder was turned over and capped on opposite side once set.5.The cylinder was removed and allowed to set for 30 minutes before testing6.The cross-sectional area was calculated by averaging measurements taken near thecenter of the cylinder7.Test cylinders were placed one at a time into concrete compression tester whileensuring the mesh cage was secured around sample.8.Went over operational procedure for concrete compression tester9.Applied load to cylinder until failure occurred10. Recorded highest load carried by sample11. Cleared and disposed of debris and swept floor near area12. The dimensions of the concrete beam were recorded13. The beam was centered between the beam supports on a supporting block on thetesting machine

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