Specifications for Large bed compression machine for plastic pipe.docx

This specification document outlines requirements for a large bed compression testing machine for the Illinois Department of Transportation (IDOT) Materials division, procured through the BidBuy vendor portal. The machine must be capable of testing plastic pipes ranging from 4 to 60 inches in diameter and must meet compression testing standards for stiffness and flattening requirements outlined in AASHTO M252, AASHTO M294, ASTM F949, ASTM D3034, and American Water Works Association specifications. The equipment specifications include a constant rate-of-crosshead movement compression testing machine meeting ASTM D2412 and ASTM D695 requirements, with compression capability at 0.50±0.02 inches (12.5±0.5 mm) per minute for stiffness testing and segmented capability for accelerated flattening testing on single specimens. The machine must include software and computer components as necessary.

The compression testing machine must have a frame capacity of maximum 300 kilonewtons with crosshead speed capability of 0.05 to 500 millimeters per minute and minimum crosshead travel of 1,600 millimeters. Loading plates must be sufficiently thick to prevent deformation during testing, with length equal to or exceeding specimen length and width not less than pipe contact width at maximum deflection plus six inches. The machine shall operate on standard 120V or 220V power supply with stroke resolution of 0.001 millimeters and load measurement accuracy of 0.5 percent of reading down to one-one-thousandth of load cell capacity. This is a rebid procurement opportunity open to all qualified vendors.