| | Category | PH | P24 | Sensible Sandbags |
| | Abstract | Through my project, I wanted to find which material, inside a sandbag, |
| | would soak up the most water. In my experiment I placed bags inside of |
| | halved PVC pipe and poured two cups of water down it. The excess |
| | water not soaked up went into a tub at the bottom. During the first trial, |
| | gravel did not soak up 1.75 cups of water of 2 poured down the tube. In |
| | the second trial it didn’t soak up 1.75, and the same results came from the |
| | third trial. The average of all three trials was 1.75 cups. The next was |
| | sand. The first trial left .75 cups, the second left 1.75 cups, and the third |
| | left 1.5 cups. Its average is 1.33 cups. The third was dirt. The first trial left |
| | 1.5 cups, the second left 1.25 cups, and the third left 1 cup. Its average |
| | was 1.33 cups. The fourth was moss. The first trial left 2 cups, the |
| | second left 1.75 cups and the third left 1.75 cups. Its average was 1.83 |
| | cups. The last material that I tested was mulch. The first trial left 1.5 cups, |
| | the second left 1.5 cups and the third left 1.25 cups. Its average was |
| | 1.416 cups. From best to worst, the materials went from, dirt, sand, mulch, |
| | gravel, moss. My most important conclusions are that mulch and moss let |
| | water pass right through, gravel dams the water, and dirt and sand were |
| | the only materials to soak water up. |
| | Bibliography | "How to Use Sandbags." Walla Walla District -- How To Use Sandbags. |
| | 02/16/2006. Walla Walla District. 30 Dec 2008 |
| | <http://www.nww.usace.army.mil/html/offices/op/em/HowToBag.htm>. |
| | |
| | "Sandbag Barrier." Sandbag Barrier Montana NRCS. 12/18/2008. United |
| | States Department of Agriculture. 30 Dec 2008 |
| | <http://www.mt.nrcs.usda.gov/technical/fires/sandbag.html>. |
| | |
| | "Using Sandbags When Threatened by Floodwater." 2003. Riverside |
| | County Fire Department. 30 Dec 2008 |
| | <http://www.rvcfire.org/opencms/_topnav/contactus.html>. |