ASTM C39 is the test method for the compressive strength of cylindrical concrete specimens, the primary acceptance test for concrete. To match this to your program, talk with our team.
What ASTM C39 Covers
The method loads a molded or cored concrete cylinder in axial compression to failure and reports the compressive strength. It is the standard basis for accepting concrete mixtures on construction projects.
How the Test Is Run
A cylinder is capped or ground for flat, parallel ends and loaded at a controlled rate until it fails. The maximum load divided by the cross-sectional area gives the compressive strength, and the fracture pattern is recorded.
Why Load Frame and Rate Matter
High-force capacity, platen alignment, and a controlled loading rate are essential for valid concrete results. To configure a concrete compression setup, request a quote.
Reading the Designation
Cited as ASTM C39/C39M-YY. Confirm the edition and specimen size.
Related Standards
EN 12390-3 is the European concrete compression method and ASTM C109 covers cement mortar cubes.
Request a Quote
Setting up concrete compression testing? Request a quote and our team will help you build a system matched to your specimen size and force capacity.
TensileMill CNC products for ASTM C39
Our specimen-preparation systems and testing equipment compatible with ASTM C39:
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
Compression Fixtures for Axial Load Testing of Rigid Specimens
Compression platens for axial load testing of rigid specimens
Build your ASTM C39 workflow with TensileMill CNC
Adding capacity or replacing older equipment? TensileMill CNC can support your ASTM C39 program. That typically means universal testing machines with compression platens and anti-buckling fixtures. Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.