Techniques and Equipment Used in Asphalt Milling

Introduction

Asphalt milling is a vital maintenance procedure that ensures optimal road conditions. Here are the primary techniques and equipment deployed in this process:

Cold Milling

• Utilizes a rotating cutter head with carbide teeth to remove asphalt.
• Offers precise depth control and minimizes damage to the underlying pavement.

Hot Milling

• Employs a heated rotating drum with cutting teeth to soften asphalt before removal.
• Provides a smoother finish than cold milling and reduces noise levels.

Equipment

• Milling Machines: Self-propelled units designed for specific milling depths and widths.
• Cutter Head: Interchangeable component that determines the milling width and tooth pattern.
• Depth Control System: Ensures precise asphalt removal to avoid over-milling or under-milling.
• Water Injection System: Cools and lubricates the cutter head, reducing wear and tear.
• Asphalt Conveyor: Transports milled material to a dump truck or other disposal site.

Benefits of Asphalt Milling

• Repairs damaged asphalt surfaces.
• Restores skid resistance and improves road safety.
• Prevents water infiltration and prolongs pavement life.