You are a field engineer for a construction services testing firm. Your current job assignment is...

   

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You are a field engineer for a construction services testing firm. Your current job assignment is to evaluate fill placement for a new roadway being constructed in Pekan, Pahang. The project specifications for the roadway require fill compaction to 98% of the ASTM D1557 compaction test results. Your lab manager sends you the results of the Standard and Modified Proctor compaction testing on the fill being placed. These results are presented in Figure Q2. Your field compaction test results for the second soil lift taken at the intervals required by the project specifications are listed in Table Q2. From the provided information, determine the following: a) Identify the maximum dry density and the optimum moisture content from Modified Proctor Test (ASTM D1557). (2 Marks) b) Analyze if the fill meets the compaction requirements at the two field density test locations. (18 Marks) c) If the field test does not meet the project specification, what remedial actions would you recommend to the contractor? 12.0 Test 1 O Test #2 11,8 ZAV G,=26 ZAV G,27 11.6 11.4 는 11.2 11.0 10.8 - 10.6 10.4- 10,2 25 5 75 10 125 15 17.5 20 22.5 25 WATER CONTENT (w) (%) Figure Q2: Proctor Compaction Testing Results Table Q2: Field Density Results for Soil Lift #2 Sample w (%) P, kg/m 1 10.0 11.75 2 11.7 12.11 DRY DENSITY (7) kg/m You are a field engineer for a construction services testing firm. Your current job assignment is to evaluate fill placement for a new roadway being constructed in Pekan, Pahang. The project specifications for the roadway require fill compaction to 98% of the ASTM D1557 compaction test results. Your lab manager sends you the results of the Standard and Modified Proctor compaction testing on the fill being placed. These results are presented in Figure Q2. Your field compaction test results for the second soil lift taken at the intervals required by the project specifications are listed in Table Q2. From the provided information, determine the following: a) Identify the maximum dry density and the optimum moisture content from Modified Proctor Test (ASTM D1557). (2 Marks) b) Analyze if the fill meets the compaction requirements at the two field density test locations. (18 Marks) c) If the field test does not meet the project specification, what remedial actions would you recommend to the contractor? 12.0 Test 1 O Test #2 11,8 ZAV G,=26 ZAV G,27 11.6 11.4 는 11.2 11.0 10.8 - 10.6 10.4- 10,2 25 5 75 10 125 15 17.5 20 22.5 25 WATER CONTENT (w) (%) Figure Q2: Proctor Compaction Testing Results Table Q2: Field Density Results for Soil Lift #2 Sample w (%) P, kg/m 1 10.0 11.75 2 11.7 12.11 DRY DENSITY (7) kg/m