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Compression and Flexure Test of Concrete lab report ( WELL WRITTEN )

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Experiment No. 5 Compression and Flexure Test of Concrete Prepared by Tocara L. Simmons Mechanical Engineering Technology Online March 9, 2021 Old Dominion University Civil Engineering Technology Department Kaufman Hall, Room 149 Norfolk, VA 23529 Table of Contents1. Summary …………………………………………….…………………………… 1 2. Procedure ……….………………………………………………………………… 2 3. Equipment ……………………..………………….……………………………… 3 4. Experiment Requirements ….……..………………………………………………. 4 5. Required Data ……………..…….………………….…………………………….. 5 6. Sample Calculations …..……..…….……………….…………………………….. 6 7. Sketches/Graphs ……………..…….……………….…………………………….. 6 8. Test Results ……………………………………….………………………………. 7 9. Sample Calculations ...…………………………….………………………………. 8 10. Conclusions/Analysis …………………………….………………………………. 9 11. References…………………………………………………………………………10 12. Appendix 1: if needed 13. Appendix 2: if needed 1. Summary 1In this experiment, we will be testing unreinforced concrete cylinders and a reinforced concrete beam. Concrete is a composite material, that is not intended to be used alone in tension applications. Here we will mix the right amount of ingredients to achieve a minimum concrete compressive strength. After the molds harden for 21-27 days, they will reach their maximum compressive strength. Loads will be applied to each mold to reach the maximum resistance, and then both the cylinders and beam will be tested to failure. After conducting the experiment, we will reflect on the predicted theoretical capacities versus the experimental results. 2. Procedure 1. Weigh each of the test cylinders. 2. Pour a quantity of melted capping compound into steel capping mold. 3. Immediately set test cylinder into compound, ensuring that cylinder is vertical with mold by pressing cylinder against upper and lower "V" blocks. 4. When compound is set, turn cylinder over and cap the opposite side. 5. Remove and allow capped cylinder to set 30 minutes before testing. 6. Take several diameter measurements near center of the cylinder, average the measurements, and calculate the cross-sectional area. 7. Place test cylinders, one at a time, into concrete compression tester ensuring that mesh cage is secured around specimen. 8. Check with instructor to learn the operation procedure for the concrete compression tester. 9. Apply load to test cylinder until failure occurs. 10. Note highest load carried by the specimen. 11. Discard all broken specimens and sweep the floor. 12. Record dimensions of concrete beam. 13. Place beam supporting block on testing machine ensuring that the loading block is exactly centered between beam supports. 14. Place beam on supporting device ensuring that supports are still at proper spacing. 15. Attach deflectometer to center of beam in accordance with the method given by the instructor. 16. Slowly apply load until obvious beam failure noted by cracks appearing on the tension side of beam. 17. While the beam is being loaded, record the values of load and corresponding deflection. 18. Discard broken specimen and sweep the floor. 3. Laboratory Equipment 2400K Universal Testing Machine Tape Measure Beam Mold #3 Rebar (2) Scoop Trowel Adjustable Wrench WD-40 Shovel Concrete Mixing Barrel Cylinder Molds (2) Cone Steel Rebar Portland Cement Ladle Sulfur Capping Compound Sulfur Capping Mol 4. Experiment Requirements a. Compressive Strength of Cylinders Calculations

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