04partaiv

04partaiv - CA qW4 a4e w4t; XcZ cae XL r )C--- -- I -V -1...

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Unformatted text preview: CA qW4 a4e w4t; XcZ cae XL r )C--- -- I -V -1 -I.3Z, R,, Air 2/?_-i---I 2 Friction Force, T, kg 4 6 8 2 4 (15 o ) (12 o ) 36 o 25 o 27 o Submerged Dry 16 o 9 o (8 o ) 6 Normal Force, N, kg Note: Dashed curves are from Horn and Deere (1962) Results of Atmospheric Friction Tests on Smooth Quartz Surface 8 10 12 14 16 Symbol 36 o Chemical cleaning Contaminated with oil Horn-type cleaning 25 o Chemical cleaning, then put in 110 o C oven for 15 min. 16 o 8-15 o 24 o 37 o Dry Submerged Treatment Symbol 2 4 6 8 2 4 6 8 Normal Force, N, kg Note: Dashed curves are from Horn and Deere (1962) Geot. 12(4), 319-335 Results of Atmospheric Friction Tests on Rough Quartz Surfaces 10 12 14 21 o 27 o 31 o 28 o 35 o Submerged Dry 16 Symbol 27 o Chemical Cleaning Acid Etch Repeated Chemical Cleanings 25 o 31 o 30 o 21 o Dry Submerged Treatment Symbol Figure by MIT OCW. Figure by MIT OCW. Adapted...
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04partaiv - CA qW4 a4e w4t; XcZ cae XL r )C--- -- I -V -1...

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