Work Item
ASTM WK96587
Revision of C578-23 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
Rationale
Structural design in foundations and roof systems requires evaluation of foam compression elasticity and strength. ASTM C578 currently has a methodology to characterize compression elasticity and strength per Section 11.5, but does not give any guidance as to the appropriate adjustment factors to establish a design stress. The work item will develop safety adjustment factors for compressive resistance.
Work Item Status
Date Initiated: 10-08-2025
Technical Contact: Robert Brooks
Item: 000
Ballot:
Status: