试验员考试题库《6》（Test questions bank 6）.doc

试验员考试题库《6》（Test questions bank 6） 1. Describe the evaluation method of asphalt surface compactness. The degree of compaction of the asphalt surface is 1 to 3km of the length of the asphalt pavement as a test evaluation unit. The representative value of the degree of compaction (the lower confidence limit of the arithmetic mean): When K is larger than Ko and all the measuring points is greater than or equal to the specified value minus 1 percentage points, the evaluation section of the degree of compaction can be set out; when K is larger than Ko, the measured value is lower than the prescribed value minus points of 1 percentage points, according to the percentage of the total number of check point value calculation. When the KKo, the evaluation of the degree of compaction for the failure, and rated as zero. 2. Test the bearing plate and test the subgrade modulus of resilience. Main points： (1) preparation: 1) 2) points; leveling measuring points; 3) placement of bearing plate, and the school level; 4) stopped the car at the measuring point; 5) test device is arranged on the bearing plate; 6) placed deflectometer. (2) test: 1) pre press 0.05MPa; 2) the determination of the pressure deformation curve; 3) calculation of springback deformation and total deformation under different load levels; 4) to determine the total effect; 5) sample moisture content; 6) measuring density with sand filling method. (3) calculate E0. 3, how is the quality grade of construction project evaluated? Construction project quality grade evaluation, the use of unit project quality rate and construction project quality grading value of double indicators control. Excellent rate of unit works (%) = The construction quality score shall be calculated according to the highway engineering completion acceptance procedures. The construction project with engineering units all qualified, qualified for the engineering quality grade; construction project with engineering units all qualified, excellent rate