ASTM C109/C109M Compressive Strength of Hydraulic Cement Mortars

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ASTM C109 is the test method for the compressive strength of hydraulic cement mortars using 50 mm (2 in.) cube specimens. To match this to your program, talk with our team.

What ASTM C109 Covers

It determines the compressive strength of cement mortar cubes, a key indicator of cement quality and mix performance used in cement acceptance and research.

How the Test Is Run

Mortar is cast into 50 mm cubes, cured, and loaded in compression to failure at a controlled rate. The maximum load over the bearing area gives the compressive strength.

Why It Matters

Cube strength ranks cement and mortar performance for acceptance; accurate force and flat, parallel bearing are essential.

Reading the Designation

Cited as ASTM C109 with its edition year. Confirm the edition and specimen requirements before finalizing fixtures. To configure a compression setup, request a quote.

Related Standards

ASTM C39 covers concrete cylinders and EN 12390-3 is the European concrete method.

Request a Quote

Setting up cement mortar cube testing? Request a quote and our team will help you build a system matched to your cube size and force capacity.


TensileMill CNC products for ASTM C109

Our specimen-preparation systems and testing equipment compatible with ASTM C109:


Configure your ASTM C109 setup with TensileMill CNC

TensileMill CNC helps labs run ASTM C109 with repeatable, audit-ready results. For this work we supply universal testing machines with compression platens and anti-buckling fixtures. Let us know your application and our engineers will help you build a compliant ASTM C109 setup.