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PAVEMENT PRESERVATION TREATMENT CONSTRUCTION GUIDE
CHAPTER 8: MICRO-SURFACING
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Chapter 8: Micro-Surfacing: Media

Unit 1:

Schematic of a Micro-Surfacing Machine

Figure 1: Schematic of a Micro-Surfacing Machine

 

Unit 2:

Micrograph of a Latex/Asphalt Cured Film

Figure 2: Micrograph of a Latex/Asphalt Cured Film

 

Unit 3:

Micro-surfacing mixture is spooned in a bowl to show proper consistency.

Figure 3: Good Mixture Consistency

Mixer Equipped with Sample Mold and  Rubber Hose Attachment     

Figure 4a: Wet Track Abrasion Test Apparatus and Test in Progress

Orbital Grinding of Sample Using  Rubber Hose Attachment

Figure 4b: Wet Track Abrasion Test Apparatus and Test in Progress

Testing Apparatus    

Figure 5a: Loaded Wheel Test and Excess Asphalt Test Apparatus and Test Samples

Tested Samples Showing Retained Sand

Figure 5b: Loaded Wheel Test and Excess Asphalt Test Apparatus and Test Samples

Chart shows wet track abrasion decreases as percent emulsion increases.

Figure 6: Determining Optimum Binder Content

 

Unit 4:

No images.

Unit 5:

Slurry Surfacing Machine

Figure 7: Slurry Surfacing Machine

Slurry Seal Box with Augers

Figure 8: Slurry Seal Box with Augers

Typical Micro-Surfacing Spreader Box    

Figure 9a: Micro-Surfacing Equipment and Application

Slurry Seal Box with Augers

Figure 9b: Micro-Surfacing Equipment and Application

Rut Box

Figure 10: Rut Box

Adjustable Edge Box

Figure 11: Adjustable Edge Box

A Typical Stockpile and Project Staging Area

Figure 12: A Typical Stockpile and Project Staging Area

Sweeping

Figure 13a: Surface Preparation Methods

Dirty Surface

Figure 13b: Surface Preparation Methods

Utility lid covered with Kraft paper.

Figure 13c: Surface Preparation Methods

Paper covered with slurry.

Figure 13d: Surface Preparation Methods

Paper is peeled off after curing.

Figure 13e: Surface Preparation Methods

Traverse joints on roofing felt.

Figure 13f: Surface Preparation Methods

Chart shows the break rate decreases as temperature increases.

Figure 14: Effects of Temperature on Break Rate

Illustrates how a rut less than a half-inch may be filled with a scratch course.    

Figure 15a: Scratch Coat Principles and Treatment

Example of a Scratch Coat Treatment

Figure 15b: Scratch Coat Principles and Treatment

Illustrates that ruts over a half-inch must use a rut box.    

Figure 16a: Rut Filling Principle and Sectional Diagram

Cross Section of a Filled Rut

Figure 16b: Rut Filling Principle and Sectional Diagram

Suitable and Unsuitable Surfaces to Use Micro-surfacing as a Rut Filler

Figure 17: Suitable and Unsuitable Surfaces to Use Micro-surfacing as a Rut Filler

High Quality Longitudinal Joint     

Figure 18a: Longitudinal Joints

Poor Quality Longitudinal Joint

Figure 18b: Longitudinal Joints

High Quality Transverse Joint    

Figure 19a: Transverse Joints

Low Quality Transverse Joint

Figure 19b: Transverse Joints

High Quality Edges and Shoulder    

Figure 20a: Edges and Shoulders

Poor Quality Edges and Shoulder

Figure 20b: Edges and Shoulders

Segregation    

Figure 21a: Poor Mixes

Delamination from a False Slurry

Figure 21b: Poor Mixes

Wash Boarding Effect

Figure 22: Wash Boarding Effect

Traffic Damage Caused by  Early Trafficking

Figure 23: Traffic Damage Caused by
Early Trafficking

Post-Application Damage

Figure 24: Damage Due to Post Application
Heavy Rain with Shear

Sweeping with a Suction Broom

Figure 27: Sweeping with a Suction Broom

Sanding at a Cross Street

Figure 28: Sanding at a Cross Street