Hardened Concrete Testing

Initial Surface Absorption Test of Concrete – [IS 516 (Part 2/Sec 2): 2020]

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Initial Surface Absorption Test of Concrete ISAT as per IS 516 Part 2 Sec 2

Concrete durability is often governed not only by its compressive strength but also by the quality of its surface zone. The outer layer of concrete is the first line of defence against rainwater, moisture and other environmental actions. A concrete surface that absorbs water rapidly may indicate poor finishing, inadequate curing, a porous surface layer … Read more

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

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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