Improved Concrete Cutting and Excavation Capabilities for Crater Repair Phase 2
Abstract
The U.S. Army Engineer Research and Development Center was tasked by the U.S. Air Force Civil Engineer Center to further improve the saw cutting and excavation production rates and robustness of crater repairs in thick portland cement concrete (PCC) pavements for airfield damage repair (ADR) scenarios. The Vermeer concrete cutting saws (CC1531 and RW1236W) were investigated and compared to the previously tested concrete saws (Caterpillar SW45, Caterpillar SW60, and Bradco RS24). Several methods of excavation were compared in terms of production rate and ease of execution. The current ADR techniques, tactics, and procedures (TTPs) indicate cutting of pavement around a small crater should be completed in 22 min or less, and excavation (breaking and removal) of the repair area should be completed in 23 min or less for an 8.5-ft by 8.5-ft crater. Various equipment and methods were evaluated for sawing and removing concrete and base course materials in 18-in.-thick and 24-in.-thick PCC pavements. The effects of base course strength and overcut lengths on excavation production rates were of particular interest for this investigation. This report presents the technical evaluation of various models of sawing and excavation equipment and various methods for improving the efficiency of removing damaged pavement associated with crater repair.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2015
- Accession Number
- ADA618124
Entities
People
- Craig A. Rutland
- Haley P. Bell
- Jay F. Rowland
- Lulu Edwards
Organizations
- Engineer Research and Development Center