Material testing and initial pavement design modeling: Minnesota Road Research Project

Original publisher: [Hanover, N.H.] : US Army Corps of Engineers, Cold Regions Research & Engineering Laboratory ; [Springfield, Va. : Available from NTIS, 1996] OCLC Number: (OCoLC)36554539 Subject: Pavements -- Frost damage -- Minnesota. Excerpt: ... Table 1. Results of regression analyses - test soils from Mn / ROAD. A. Frozen condition. Std 2 2 Material Equation ( M in lb / in. ) * n r error r Clay subgrade sample 1206 ( 565 ) − 5.259 Frozen 207 0.99 0.319 M = 1, 087 f ( w ) r u − 2.344 M = 1, 049 f ( w ) 207 0.99 0.275 Frozen r u − g − 2.929 Frozen 207 0.99 0.262 M = 1, 052 f ( w ) r u − v Clay subgrade sample 1232 ( 566 ) − 4.821 Frozen 244 0.98 0.378 M = 905 f ( w ) r u − 2.16 M = 846 f ( w ) 244 0.98 0.423 Frozen r u − g − 2.633 Frozen 244 0.98 0.394 M = 848 f ( w ) r u − v Class 3 " stockpile " − 2.026 Frozen 186 0.97 0.491 M = 5,824 f ( w ) r u − 1.076 M = 5, 488 f ( w ) Frozen 210 0.97 0.507 r u − g − 1.249 186 0.97 0.467 Frozen M = 5,542 f ( w ) r u − v Class 4 ( taxiway A subbase ) − 5.220 Frozen 69 0.92 0.835 M = 2,826 f ( w ) r u − 1.733 M = 1,813 f ( w ) Frozen 85 0.93 0.885 r u − g − 2.813 Frozen 69 0.91 0.916 M = 1,652 f ( w ) r u − v Class 5 ( dense graded stone ) − 2.036 28 0.97 0.404 Frozen M = 11,320 f ( w ) r u − 1.2814 M = 8,695 f ( w ) Frozen 28 0.95 0.511 r u − g − 1.489 Frozen 28 0.97 0.432 M = 9,245 f ( w ) r u − v Class 6 " stockpile " − 1.243 260 0.98 0.372 Frozen M = 19,924 f ( w ) r u − 0.795 M = 19, 427 f ( w ) Frozen 260 0.98 0.338 r u − g − 0.897 Frozen 260 0.98 0.341 M = 19,505 f ( w ) r u − v 2 ( kPa ) ( lb / in. ) layers resulting from calculations, and 3 ) 5 5 10 7 x 10 stress conditions for all points specified. For this study, the points specified were located 0.01 in. above the bottom of the us asphalt or PCC and 0.01 in. below the top odul of the subgrade. In the program, a 4090-kg M t ( 9,000-lb ) load was applied to a 15-cm ilien ( 5.91-in. ) radius, which approximates the Res area of a standard set of dual whee...