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Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional...

Date post: 20-Jan-2016
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Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and too often produce poor results Intelligent compaction technology appears to offer “a better way”
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Page 1: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

Why Intelligent Compaction?

• Proper in-place density is vital for good performance

• Conventional compaction equipment and procedures have shortcomings and too often produce poor results

• Intelligent compaction technology appears to offer “a better way”

Page 2: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

Conventional spot-testing

Troxler PQI/PDM

destructivespot-testing

Drill-core

Proportion of spot-testingto the quantities placed

1 : 1,000,000

non-destructivespot-testing

Page 3: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

100 % Coverage

1 / 1,000,000

Courtesy of Trimble/Caterpillar

Sampling Coverage

Page 4: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

Passes 431 2 5 6 7 8>8

Up to 15 passes

Up to 13 passes

1 pass

1-3 passes

Conventional rolling – passes

Specified:8 Passes

Achieved ∅:

5.7 Passes

Page 5: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

HAMM Compaction Quality (HCQ)

Page 6: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

IC Roller Requirements (FHWA)

• IC Measurement Value (ICMV)

• GPS-based documentation system

• On-board, color-coded display

• Surface temperature measurement system

Page 7: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

HAMM Double Drum IC System

Accelerometer

GPS Receiver

HCQ GPS Navigator

Temperature Sensors Control Panel

Page 8: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

HCQ-GPS Navigator

Components: HCQ-Box

Page 9: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

CAT CMV, MDP

Dynapac CMVBomag EVIB Sakai CCV

Ammann kb HAMM HMV

Roller measurement values

Page 10: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

Data Collection

Page 11: Why Intelligent Compaction? Proper in-place density is vital for good performance Conventional compaction equipment and procedures have shortcomings and.

Summary

– HCQ offers a valuable new tool to the Contractor and Agency to improve Quality Control and pavement service life• Improved density…. Better performance• Improve efficiency…. Cost savings

– Overall Benefit: Enables consistency and therefore provides Improved Pavement Performance!


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