Splitting tension tests to determine concrete fracture parameters by peak-load method

An experimental program confirms that the peek-load method can be successfully applied to splitting tension tests to determine fracture parameters K_Ic^S and CTOD_c of the two-parameter fracture model from the measured peak loads. The peak-load method requires distinct specimens. It is found that a hole drilled at the axis of splitting tension cylinder can largely expand the specimen distinction. Combination of tests on splitting tension cylinders with and without a hole raises the reliability of the K_Ic^S and CTOD_c values determined by the peak-load method.