Volvo Construction Equipment Road Institute Paving Principles

Volvo Construction Equipment Road Institute Paving Principles

Volvo Construction Equipment Road Institute Paving Principles

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 $$$!

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

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

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

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!

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

Volvo Construction Equipment Paving Principles