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<br /> <br />American E~ccelsior Company <br />AN EMP~C~EE OWNED COMPerr+ <br />Curlex° Excelsior Blankets <br />-- Technical Support Sheet -- <br />Thesefigures were arrived at during independent testing conducted at a leading university, using a series of programs on <br />both a flume (for channel test) and a rainfall simulator (For sediment and growth tests). <br />This, in conjunction with the use of the Federal Highway Administration research, can be a useful tool for designing <br />slope protection, is well as vegetating channels. <br />Resistance Values' <br />Darcy "F" Manning "N" <br />Test #I Re~ulaz Curlex` 0.136 0.034 <br />Test #2 HV Curlex° 0.070 0.026 <br />Test #3 Double-Net Curlex O.l 11 0.031 <br /> <br />.- <br />Total Averase Erosion (Ft.)` <br />Test #1 Regulaz Curlexa O.O164 <br />Test #2 HV Curlex® 0.0727* <br />Test #3 Double-Net Curlex° 0.0144 <br />*Note higher velocities of water used during these tests, reaching 10 FPS and above. <br />Aanrox. Critical Velocity Ft./S` <br />t Tests were conducted in an indoor concrete flume having a dimension of 8' wide, 6' deep and 570 <br />ft. long. Soil is classified as a sandy loam and has the following approximate composition: <br />Total Sand = 56% Total Silt = 29.x% Total Clay = l4S% Total Organic Matter = 0.34% <br />Soil was added in layers and uniformly compacted [o approximately 90% of standard proctor density. <br />Velocity measurements were made using a Montedero-Whitney Electromagnetic Velocity Probe, <br />which has a full scale range of 0-?0 FPS, with an accuracy of +/- O.OI FPS. <br />* Due to the roughness of Curlex, [he actual amount of water volume (CFM) is increased over most products due to the greater depth of flow. <br />