Tuesday, June 18, 2019

Asphalt superpave Assignment Example | Topics and Well Written Essays - 500 words

Asphalt superpave - Assignment Example5. Calculate averages and standard deviations using data from all samples of the same mix stick out. Compare average results from different design mixes. Do the samples fall within PennDOTs acceptance criteria?The laboratory experiment was successful since the results showed that the samples prepared had compacted air voids of between 3% and 8%. For C, the percent cover by air voids was 3.22% while for D the percent was 2.95%. This range prevents the possibility of the voids becoming interconnected thereby reducing the susceptibility of the pavement undergoing permeation by air and moisture. The percent of water absorbed for both specimen C and D was less than 3 percent consequently there was no enquire for paraffin-coated. The samples fall within PennDOTs acceptance criteria because they have percent of air voids around 4% and 96% compaction. However, C proves to be the best sample since its set for percent air voids (3.22) and compaction (9 6.78%) are closer to PennDOTs acceptance criteria. This means that design mixes C and D are suitable for asphalt pavement since they give assurance on the required degree of compaction and percent air voids in compacted bituminous

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