SAM #99670

CDC Sole Source Procurement of Humboldt Mfg RDP Test Machine for Shotcrete Testing

This notice from the CDC Office of Acquisition Services announces an intent to sole source the procurement of a specialized test machine. - Agency: Centers for Disease Control and Prevention (CDC), Department of Health and Human Services (HHS) - Procurement Type: Sole source (no competition) - Product Requested: Round Panel Determinate (RDP) test machine - Manufacturer: Humboldt Mfg - Purpose: Standardized testing of fiber-reinforced shotcrete mixtures - Enables correlation with NIOSH’s HEHD machine and MTS Mark II impact drop test machine - Justification: Only Humboldt Mfg provides the industry-recognized ASTM standard RDP test machine needed for research and practical interpretation by mine operators, suppliers, engineers, and ground control practitioners - Quantity: One unit - No part number specified - No additional services or accessories requested - Commercial opportunity is limited to Humboldt Mfg due to sole source justification

Description

The Round Panel Determinate (RDP) test machine is needed because the RDP test is an established and industry-recognized method for evaluating the behavior of fiber-reinforced shotcrete. This capability will provide a standardized reference point for the shotcrete mixtures used in the in current research. The same shotcrete mix designs can then be tested using the RDP machine, NIOSH’s High Energy High Deformation (HEHD) machine, and the MTS Mark II impact drop test machine. This machine is critical because the HEHD and MTS Mark II machines provide unique and valuable research insight, but their test methods are not directly tied to a standard ASTM shotcrete test. Without RDP testing, results from these specialized machines may be difficult for industry stakeholders to interpret or compare against commonly accepted shotcrete performance metrics. The RDP machine will allow SMRD to correlate experimental HEHD and MTS Mark II results back to a test method that mine operators, shotcrete suppliers, engineers, and ground control practitioners can readily understand and apply.

View original listing