soil compaction supervisor

Product catalog summary

Introduction
The document discusses the challenges and solutions related to small excavation reinstatement, focusing on the issues faced by municipalities and utilities due to varying backfilling specifications and pavement failures. MBW introduces the Soil Compaction Supervisor (SCS) as a solution to these problems.

Key Observations
1. Backfilling specifications often require removal of excavated spoil and replacement with imported backfill, which can compromise sub-grade uniformity.
2. End result testing is often misleading and protocol violations are a major cause of earthwork failure.

SCS Technology
The SCS uses seismic technology to monitor soil stiffness during compaction. It provides real-time feedback to crews, indicating when compaction should stop, ensuring optimal soil stiffness and density. The system documents the compaction process, enhancing accountability and allowing for performance review.

Practicality and Cost Reduction
The SCS is user-friendly, requiring minimal training. It reduces costs by eliminating the need for imported backfill and flowable fill, and by minimizing rework and pavement repair costs. The SCS also reduces testing costs and improves efficiency by completing testing before end result testing begins.

Third-Party Testing
Independent tests have shown high confidence levels in SCS results, with strong correlations to Standard Proctor Density measurements, especially in granular soils. Moisture content is critical for cohesive soils.

Protocol
The SCS protocol includes specific guidelines for lift thickness and moisture testing. It ensures that compaction continues until optimal results are achieved, even in cases of protocol violation.

Conclusion
The SCS eliminates guesswork in soil compaction, providing a reliable and cost-effective solution for small excavation reinstatement.

Catalog excerpts

SUPERVISOR SOIL COMPACTION SUPERVISOR SOIL COMPACTION SUPERVISOR (SCS) If ever there was a need for a “fresh approach,” it is in the area of small excavation reinstatement. Municipalities are frustrated with pavement failure over and around utility excavations. Utilities decry the high cost of complying with backfilling specifications that vary from municipality to municipality. Research efforts directed to improving the reinstatement process have failed to result in a cost effective, uniform approach to the problem. process. The SCS determines when continuing compaction activity has reached...

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ELIMINATES GUESS WORK IN SOIL COMPACTION ! Viewing the SCS simply as a QC instrument points to further savings. Testing cost is low on a per excavation basis. The SCS does not interrupt the backfill process. The SCS’s seismic approach is not tied to time consuming laboratory soil analysis and instrument calibration. Very importantly, SCS results are not skewed by proximity of buried utilities and trench walls – the usual operating environment in small excavations. ! PRACTICALITY: Because the SCS triggers termination of the compaction effort, SCS testing is completed before end result testing...

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S U P E R V I S O R PROTOCOL: The SCS is used in conjunction with the following protocol: ! lifts not to exceed 12 inches ! hand test for adequate moisture in granular soils. Use a hydrometer to determine if soil moisture is conducive to effective compaction of cohesive materials ! the compaction effort must be continued until the pass in which the SCS gave the stop signal is completed to continue their compaction effort until the best possible result is achieved for the full depth of the lift. While we cannot guarantee that overly deep lifts will be compacted adequately, the probabilities of...

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soil compaction supervisor

soil compaction supervisor

Catalog excerpts

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