Transcription of CHAPTER 630 FLEXIBLE PAVEMENT
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CHAPTER 630 FLEXIBLE PAVEMENT
Highway Design Manual 630-1 July 1, 2020 CHAPTER 630 FLEXIBLE PAVEMENT Topic 631 Types of FLEXIBLE Pavements & Materials Index Hot Mix Asphalt (HMA) HMA consists of a mixture of asphalt binder and a graded aggregate ranging from coarse to very fine particles. HMA is classified by type depending on the specified aggregate gradation and mix design criteria appropriate for the project conditions. The Department uses the following types of HMA based on the aggregate gradation: (1) Dense Graded HMA, (2) Gap Graded HMA, and (3) Open Graded Friction Course. HMA types are found in the Standard Specifications and Standard Special Provisions. Dense Graded HMA Dense graded HMA is the most common mix used as a structural surface course.
Jul 01, 2020 · chip seal. • Geosynthetic Pavement Interlayer (GPI). GPI consists mainly of asphalt-saturated geotextile (also called fabric), but other geosynthetic planar products such as paving grids and paving geocomposites (grid attached to geotextile) are also used. Refer to Standard Specifications for the various GPI types.
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