volvo construction equipment road institute paving principles
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![Page 1: Volvo Construction Equipment Road Institute Paving Principles](https://reader033.vdocuments.mx/reader033/viewer/2022061305/5513f51e55034674748b5e0a/html5/thumbnails/1.jpg)
Volvo Construction EquipmentRoad Institute
Paving Principles
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Volvo Construction EquipmentRoad Institute
Paving Principles
![Page 3: Volvo Construction Equipment Road Institute Paving Principles](https://reader033.vdocuments.mx/reader033/viewer/2022061305/5513f51e55034674748b5e0a/html5/thumbnails/3.jpg)
Volvo Construction EquipmentRoad Institute
Paving Principles
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Volvo Construction EquipmentPaving Principles
Why Smoothness?
•Smooth Pavements last longer•Smooth Pavements save fuel•Smooth Pavements are quieter•Smooth Pavements require less Maintenance•Smooth Pavements save $$$!
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Volvo Construction EquipmentPaving Principles
Tools of the TradeProfilographs
High Speed Profilers
How are we measured?
• IRI= International Roughness Index
•Paving Contractors will receive bonus or penalty based on the outcome of these numbers
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Volvo Construction EquipmentPaving Principles
Freshly Placed Mat
15% Compaction From Roller
Mat Profile After Compaction is Greatly Improved Compared to the
Original Base Profile
Original Uneven Base
15 m (50 ft)
Leveling Course
Milled Surface
The more layers that are laid: the better the surface finish
Differential Compaction
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Volvo Construction EquipmentPaving Principles
Opportunity for improvement: leveling, filling and milling
Density off the screed contributes greatly to Smoothness
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Volvo Construction EquipmentPaving Principles
Balance at the Paver
Factor No 3:
Paving Speed
Factor No 2: Head of Material
Factor No 1:
Angle of Attack
Any variation in these three factors will affect this balance and may cause undesired screed reactions
Head of Material is the key!
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Volvo Construction EquipmentPaving Principles
Balance and Best Practice with Compaction
•Angled stops•Away from outside edges•Staggered stops
•Do not over-speed the rollers•Maintain 10-14 Impacts per foot
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Volvo Construction EquipmentPaving Principles