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Volvo Construction Equipment Road Institute Paving Principles.

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Presentation on theme: "Volvo Construction Equipment Road Institute Paving Principles."— Presentation transcript:

1 Volvo Construction Equipment Road Institute Paving Principles

2 Volvo Construction Equipment Road Institute Paving Principles

3 Volvo Construction Equipment Road Institute Paving Principles

4 Volvo Construction Equipment Paving Principles Why Smoothness? Smooth Pavements last longer Smooth Pavements save fuel Smooth Pavements are quieter Smooth Pavements require less Maintenance Smooth Pavements save $$$!

5 Volvo Construction Equipment Paving Principles Tools of the Trade Profilographs 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

6 Volvo Construction Equipment Paving 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

7 Volvo Construction Equipment Paving Principles Opportunity for improvement: leveling, filling and milling Density off the screed contributes greatly to Smoothness

8 Volvo Construction Equipment Paving 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!

9 Volvo Construction Equipment Paving Principles Balance and Best Practice with Compaction Angled stops Away from outside edges Staggered stops Do not over-speed the rollers Maintain Impacts per foot

10 Volvo Construction Equipment Paving Principles


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