Freeze-Thaw Chamber
The Contractor delivers a self-contained and fully automated concrete freeze-thaw chamber for use on various concrete specimens in accordance with the standards and guidelines of both procedures A and B of ASTM C666-15

Technical Specifications

Unit Specifications

• Unit have self-contained and include a separate temperature-controlled thaw-water storage tank. Use water as the thaw medium
• Fully automated and test in accordance with both procedures A and B of ASTM C666-15
• Capacity for 60, 3” x 4” x 16” concrete specimens. The procurement also include 60 plastic freeze thaw sample container sleeves (3” x 4” x 16”) for use with procedure A
• Footprint:10’ x 6’
• Refrigeration system utilizes air cooled: 404A refrigerant and 208/60, 50 Amp, Three Phase
• Circulating fans for uniform temperature distribution
• Lid operated with an electric actuator
• Type T thermocouples: 8 Channels

Controls

• Touch screen interface
• Programable control
• Programable time and temperature profiles
• Adjustable cycle times
• Able to operate in automatic or manual modes
• View over-all status of the machine including status of alarms and alarm history
• Network connectivity
• USB port
• Data available in Excel format
• An emergency stop button
• Adjustable water set point
• Real time data display on the machine interface

Other Specifications

• Hard and digital copies of site preparation, Installation, Operating and Maintenance manuals in English. Electrical and program schematics included
• All power cables (compatible with North American power grid and sockets), data communication cables, air and water fittings 
• Spare parts to be included: Fuses; Switches; Bulbs
• Onsite Service: Installation & Training: The Contractor shall perform system training while onsite for installation. Training and installation onsite work at CRREL up to one (1) day by a US Citizen with proper identification after a security check.
• Equipment Warranty: 1-year warranty covering the hardware