Compressive Strength Test of Concrete (ASTM C39 & IS 516)

Compressive strength test of concrete ASTM C39 vs IS 516

On almost every construction project, thousands of concrete cubes or cylinders are cast and tested. Yet obtaining an accurate result involves much more than simply placing a specimen in a compression testing machine. Factors such as specimen preparation, curing conditions, machine calibration, loading rate, and even the exact age of the specimen can significantly influence … Read more

HOW TO DO SAMPLING OF FRESH CONCRETE IN THE FIELD?

How to do sampling of fresh concrete

Sampling of Fresh Concrete To ensure it is representative of the whole truck load, a standard sample consists of scoopfuls taken from different parts of the batch and collected in bucket. Scoopfuls must be taken through the moving stream, as the load is discharged, sampling the whole width and depth (not just the top part). … Read more