Core sampling for Strength Assessment of Concrete Structures
The core samples collected can be tested for compressive strength, chemical analysis, petrography examination etc. Normally 75mm to 100mm diameter core is used for extraction of core samples for compression testing. The cores should have a length/diameter ratio between 1.0 and 2.0. Cores were extracted by means of rotary cutting tool with diamond bits. The base should have solid support to prevent relative movement. Water supply should be continuous to lubricate the cutter and applied pressure should be uniform.
Concrete Core Extraction in Progress
Concrete Core Samples
The collected samples are dressed and the dressed core samples were tested for compressive strength
Sizing of specimen using diamond saw concrete cutter
Dressed Concrete Core
Compression testing of dressed core samples