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Concrete Strength Acceptance Criteria IS:456-2000 concrete cube test report pdf IS Specified characteristic compressive strength of 150 mm cube after 28 days for M-20 grade concrete is 20 Nmm² as per IS 456-2000 For SPIHER Checked & concrete cube test report Name of test: Compressive strength of concrete cube specimens Note: 1 KERI has not taken part in selecting samples for the test 2 Results

lucky test In case of doubt regarding the grade of concrete used, either due to poor workmanship or based on results of cube strength test, compressive