WebField Density Compaction Tests: Performed by a licensed Geotechnical Engineer following ASTM D1556, ASTM D6938, or ASTM D2937 at minimum rate of 1 test for every 100 feet of fill along main trench and at every lateral trench, structure and valve box in Type I areas. a. Test each lift to a minimum depth of 5.0 feet from the surface on sewer main and WebNov 20, 2016 · Ron (Structural) 21 Nov 16 02:23. For most soils, the moisture content is only important at the time of compaction. If you achieved compaction and it became wet later, that should not matter as compaction is compared to the dry density, not the wet density. There can be problems with doing nuclear testing in a trench and with high moisture ...
Soil Compaction Test Geoengineer.org
Web.13 Compaction and the compaction test frequency must comply with Table 5.14. .14 AS 1289, test method 5.2.1 (modified compaction) must be used to determine the Dry Density Ratio. TABLE 5.14 COMPACTION Minimum Backfill Compaction (Dry Density Ratio - % modified) Below Sealed Pavement Below Unsealed Pavement and Shoulder Outside of … Webin the centre of the trench. 3. Test Depth for Field Density The test depth for field density testing of a compacted layer shall be in accordance with Sections 3.1 to 3.4, as … dentistry fmc cpd
Section 3010 - Trench Excavation & Backfill - Iowa Department of ...
WebAug 27, 2024 · Pavement Test Sites and Instrumentation. There are 12 pavement test lanes in the facility, each 4 m (13 ft) wide. The paved area is 48 by 50 m (156 by 165 ft). Each lane contains four testing areas, designated as sites, shown in blue in figure 4. Each site has an effective loading area of 13.7 by 1 m (45 ft by 40 inches). Figure 4. Web8.6.2 Compaction & Testing ... 8.6.3 Requirements for Backfilling and Compaction ... A minimum trench shoulder width of 150mm applies to all trenches in the carriageway except in concrete carriageways where a minimum shoulder width of 300mm is required. It may be necessary to increase the WebBegin with a lift of 15cm and add 7.5 cm until you find the optimum lift thickness and number of passes for the given condition. One can use strip test to determine the number of passes and equipment types to achieve the required degree of compaction for the given soil type and condition. Fig.1 shows the performance of different compactors at a ... dentistry for busy people