Transcript Module 3 HMA construction

HMA Construction Program
Module 3 - Surface Preparation
Module 3 - Objectives
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State the objectives of surface preparation
Proper base preparation techniques
Proper techniques for overlay preparation
Proper materials and construction
techniques for patching
• Proper techniques for placing leveling
courses
• Proper milling techniques
Preparation of a
New Base
To Prime...
or
Not to Prime...
FORM 3-1 BASE PREPARATION CHECKLIST
Date:_____________________
Project #: _______________ Project:__________________________________________________________
Location of area:
Station ______ to ______; Offset ____________;
Other __________________________________
Base Type: (Natural Subgrade, Stabilized Subgrade, Sub-Base, Aggregate Base)
Item
Deficiencies
(Location and Type)
Corrective Action
(List Details)
Agency OK
Initials / Date
Contractor OK
Initials / Date
Final Grade
cross-section
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Density Testing
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Proof Roll and
Visual Survey
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Prime Coat
Type: ________
Rate: ________
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REMARKS: ________________________________________________________________________________________________________________
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Preparation of an
Existing Surface
Pavement Repair
• Matching Techniques
• Materials
• Procedure
FORM 3-2 EXISTING SURFACE PREPARATION CHECKLIST
Date:_____________________
Project #: _______________ Project:__________________________________________________________
Location of area:
Station ______ to ______; Offset ____________;
Other __________________________________
Surface Type: (HMA Base; HMA Binder, HMA Surface [new or old], PCC Surface)
Item
Deficiencies
(Location and Type)
Corrective Action
(List Details)
Agency OK
Initials / Date
Contractor OK
Initials / Date
Visual Survey
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Pavement Repairs
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Final Cleaning
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Tack Coat
Type: ________
Rate: ________
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REMARKS: ________________________________________________________________________________________________________________
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Preparing a
Milled Surface
Module 3 - Review Objectives
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State the objectives of surface preparation
Proper base preparation techniques
Proper techniques for overlay preparation
Proper materials and construction
techniques for patching
• Proper techniques for placing leveling
courses
• Proper milling techniques