Compressive Strength Testing the Cylinder of Concrete

AIM

To determine the compressive strength of concrete cylinders.

 APPARATUS

Compression testing machine, cylinder mould of 150mm diameter and 300mm height, weighing balance.

 PROCEDURE

(i) Cast the cylinder and cure for 28 days.

(ii) Takeout the specimen from the curing tank.

(iii) Wipe out the excess water from the surface of specimen.

(iv) Place the specimen vertically on the platform of compression testing machine.

(v) Apply the load continuously and uniformly without shock at the rate of 315 kn/min. And continue the loading until the specimen fails.

(vi) Record the maximum load taken.

NOTE

• Test at least 3 specimens.
• Report
• Date of casting :
• Date of testing :
• Age of specimen :
• Curing condition :

 CALCULATIONS

• Range Calculation
• Characteristic compressive strength at 28 days = N/ mm2
• Area of cross section = pi.d²
• Expected load = stress x area xf.s =
• Range to be selected is……………………

 COMPRESSIVE STRENGTH

• Maximum load =
• Compressive strength = (Maximum load/ Cross sectional area)

 RESULT

Compressive strength of cylinder =…………………….N/mm²

Related articles

• The procedure for Compressive strength test of Concrete Cubes
• Test Concrete Cubes Strength Easy Process

About The Author

Civil Engineer

Hello, My self Neelmani, A Civil Engineer. Presently I am working with Indian Railway. An Affiliate Member of ASCE “American Society of Civil Engineers”. B.Tech in Civil Engineering from MIT Muzaffarpur and Diploma in Railway from IPWE as well as Civil Engineering from Govt. Polytechnic Muzaffarpur.

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