Cbr Top Of Sub Base Palm
Multiple-wheel assemblies are beneficial because the stress distributions produced by the tires do not overlap to a large degree at shallow depths. Maintain moisture content during the compaction procedure within the specified moisture-content range. Table 5-3 shows the common rock types that are generally suitable for base-course material. Silts . Percent passing 2-inch sieve 100 Percent passing No. These materials may be used as select or subbase materials, as appropriate, if supported by adequate inplace CBR tests on construction projects using the materials that have been in service for several years. The light blading will loosen the fines; the coarser particles of the base course will be carried along by the blade to form a windrow at the edge of the section being finished. Mistaking these deposits for a sand-clay soil may result in base-course failure. Fine Grading . SELECT MATERIALS AND SUBBASE COURSES.
Finishing . General characteristics of the subgrade soils. Subscribed unsubscribe Subscribe Subscribe . The percent of moisture will vary with the type of material and is a matter of judgement by the project's quality control manager. Specify compaction according to the criteria described in Figure 5-4. However, removing the source of the water is often very difficult and, in some cases, impossible in the allotted construction period. The surface is then rolled. If a material meets the requirements for gradation and Atterberg limits for the next higher design CBR category, but the material's CBR value does not meet the maximum design CBR for that category, assign the material design a CBR value equal to the measured CBR results.
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