Section Pages 1 INTRODUCTION. 2 2 THEORY DEVELOPMENT. 2 3 TEST EQUIPMENT & EXPERIMENTAL PROCEDURES. 3 4 PRESENTATION OF TEST RESULTS. 4 5 SUMMARY AND CONCLUSION. 4
Appendix A – Liquid Limit Test Appendix B – Plastic Limit Test
The following equipment were used: 1. Soil 2. Cup 3. Spatula 4. Liquid limit (LL) test device 5. Electronic scale 6. Oven Experimental procedures for LL test: 1. Put soil in cup 2. Add Water to soil, mix thoroughly with spatula 3. Clean and adjust LL test device 4. Butter soil into brass cup 5. Make groove 6. Count the number of blows to half inch groove - Successful test only # blows: (25-35), (20-25), (15-20) 7. Repeat steps 1-6 after each successful test 8. After a successful test, obtain a specimen to measure w% Experimental procedures for Plastic Limit test: 1. Obtain marble size of specimen 2. Find a clean space on bench and roll marble into 1/8” diameter thread 3. When 1/8” thread crumbles, obtain specimen for w% 4. Repeat steps 1-
For the results of the liquid limit and plastic limit test we used the LL apparats and the 1/8” diameter test to collect the data shown in appendix A and B. We calculated the LL to be 48%, and our plasticity index to be 22%.
This report summarizes the results obtained from Atterberg Limits test. We measured the liquid limit to be 48% and averaged our Plastic Limit from two tests to be 22%. We also calculated the Plasticity Index, which is the difference between the Liquid Limit and the Plastic Limit, which equated to 25%.