Wienckowski Asphalt.docx

Wienckowski Asphalt.docx - Lab work 10/10 Abstract 5/6...

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Lab work 10/10 Abstract 5/6 Introduction 4/6 Methods & Procedures 10/12 Results & Discussion 12/15 Conclusion 4/6 Grammar & Mechanics 9/10 Presentation of Data & Results 7/10 Calculations 22/25 Total = 83 Hot Mix Asphalt Superpave Volumetric Design and Compaction Tests CE 206 (C.E. Lab #5) Conducted: March 25 th , 2010 Submitted to: Prof. Brown, March 30 th , 2010 Tom Wienckowski Lab Specimen M Members:
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Matt Smith Table of Contents Page Abstract 3 Introduction 4 Methods and Procedures 4 Results and Discussion 6 Conclusions 10 References 10 Appendix 11 2
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Abstract Asphalt superpave volumetric design and compaction tests provide engineers with the data for what type of asphalt should be used in specific climates and traffic conditions. The objective of this lab was to perform standard laboratory tests on compacted hot mix asphalt (HMA) mixtures to determine the effect of varying design mixes and materials on the degree of compaction and percent air voids in compacted bituminous samples. The specimens were recorded for their dry weight, weight submerged under water, and the saturated surface dry weight . The results showed that the top-virgin specimens were about the lightest specimens submerged under water, and the base-virgin specimens were the heaviest. The results were used to calculate the bulk specific gravity of the asphalt mixture, percent water absorbed, percent compaction and the percent air voids for each sample. The average and standard deviation for all of the samples were used to compare average results from different design mixes and if the samples were within PennDOT’s acceptance criteria. 3
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Introduction Hot mix asphalt is a material that is used consistently in engineering highways and roads. Different types of asphalt mixes are used depending on the different climates and traffic. Percent compaction and percent air voids are factors that an engineer should consider when designing a roadway in a certain area . The objective of this lab was to perform standard laboratory tests on compacted hot mix asphalt (HMA) mixtures to determine the effect of varying design mixes and materials on the degree of compaction and percent air voids in compacted bituminous samples. The base-virgin, base-recycled, and top-virgin, asphalt specimens were recorded for their dry mass, submerged weight,
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Wienckowski Asphalt.docx - Lab work 10/10 Abstract 5/6...

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