What does a compaction test verify for a base layer?

What does a compaction test verify for a base layer?

• A. The weather conditions during compaction
• B. The achieved density meets the project specification to support pavement
• C. The color of the base material
• D. The moisture content only

Answer: (B)

Compaction testing checks how dense the base layer has become. The goal is to confirm the in-place density meets the project specification because the required density ensures the base can adequately support pavement loads and stay stable under traffic. Achieved density reflects how well the material has been compacted, which relates to strength, settlement resistance, and durability. Weather conditions during compaction or the material’s color aren’t what the test verifies. Moisture content affects how easily compaction occurs, but the test’s purpose is to verify that the final density matches the specified requirement to support pavement.

Compaction testing checks how dense the base layer has become. The goal is to confirm the in-place density meets the project specification because the required density ensures the base can adequately support pavement loads and stay stable under traffic. Achieved density reflects how well the material has been compacted, which relates to strength, settlement resistance, and durability. Weather conditions during compaction or the material’s color aren’t what the test verifies. Moisture content affects how easily compaction occurs, but the test’s purpose is to verify that the final density matches the specified requirement to support pavement.