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PAVEMENT PRESERVATION TREATMENT CONSTRUCTION GUIDE
CHAPTER 9: THIN FUNCTIONAL HOT MIX ASPHALT OVERLAY PROJECTS
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Chapter 9: Thin Functional Hot Mix Asphalt Overlay Projects: Media

Unit 1:

Dense Graded

Figure 1a: Stone Matrices Created by Different Gradings

Gap Graded

Figure 1b: Stone Matrices Created by Different Gradings

Open Graded

Figure 1c: Stone Matrices Created by Different Gradings

Adding Asphalt

Figure 2a: Adding Asphalt

Mixing Asphalt

Figure 2b: Mixing

Making a Sample

Figure 2c: Making a Sample

Figure 2: Mix Design

 

Chart shows the percent of mix that passes through various sieve sizes.

Figure 3: Job Mix Formula (JMF) with Specification Bands Example

  

California Kneading Compactor

Figure 4: California Kneading Compactor

Stabilometer - Hydraulic Portion

Figure 5: Stabilometer - Hydraulic Portion

Stabilometer

Figure 6: Stabilometer

Placing the Sample in the Gyratory Compactor

Figure 7: Placing the Sample in the
Gyratory Compactor

Running the Gyratory Compactor

Figure 8: Running the Gyratory Compactor

Extruding the Sample from the Mold

Figure 9: Extruding the Sample from the Mold

 

Unit 2:

Typical Aggregate Gradation of Denses-Graded Mixture

Figure 10: Typical Aggregate Gradation of Denses-Graded Mixture

Stress Absorbing Membrane Seal    

Figure 11a: SAM Seal and SAMI

Stress Absorbing Membrane Interlayer

Figure 11b: SAM Seal and SAMI

Butt Joint     

Figure 12a: Transverse Joint Formation

Tapered Joint

Figure 12b: Transverse Joint Formation

Illustration of the compaction of an overlapped joint.

Figure 13: Formation of Longitudinal Joints

Illustrates the finishing stage of rolling, using a static roller.

Figure 14: Rolling Regimes

 

Unit 3:

Chart illustrates aggregate gradations for open-graded mixes.

Figure 15: Typical Aggregate Gradation of Open-Graded Mixture

Typical Open Graded     

Figure 16a: Typical Texture

Typical Dense Graded

Figure 16b: Typical Texture

 

Unit 4:

Chart illustrates aggregate gradations for gap-graded mixes.

Figure 17: Typical Aggregate Gradation of Gap-Graded Mixture