Asphalt Coring Test

Asphalt Coring Test

The Asphalt Coring Test is a primary field technique for obtaining cylindrical samples from current asphalt pavements. These cores, which are commonly retrieved using rotary coring drills and diamond-tipped bits, are necessary for a variety of laboratory studies and forensic evaluations. Asphalt coring, which is done according with ASTM D5361 and AASHTO T230, allows for direct access to in-situ pavement materials while minimizing disruption to nearby regions. The core samples enable evaluation of layer thickness, degree of compaction, material gradation, asphalt composition, and even interface bonding between pavement layers. This test is frequently used for quality assurance, pavement condition assessments, structural evaluations, and failure investigations on roads, highways, airport runways, and industrial yards.

Advantages of Asphalt Coring Test: 

• Offers direct physical samples for laboratory testing and verification.
• Allows study of the pavement structure, layer thickness, and density.
• Supports the assessment of conformity with design and construction standards.
• Facilitates forensic investigations and root-cause analysis of pavement problems.
• Precision coring equipment allows for little surface damage and speedy recovery.
• Enables long-term monitoring of pavement deterioration or maintenance performance.
• Essential for confirming the as-built construction quality.
• Supports overlay design, rehabilitation, and structural capacity modeling.