Abstract:
In this paper, load-controlled three-point bending and pulling tests were conducted on precast cracked pervious concrete specimens to study the fracture mechanical properties of pervious concrete in terms of the mechanisms of crack initiation, fracture, and instability. The effect of different loading rates on the fracture mechanical properties of pervious concrete was investigated through three-point bending and pulling tests with different loading rates. The cracking process of pervious concrete under reciprocal loading was also monitored by introducing acoustic emission technology, and the test results showed that the crack expansion pattern of pervious concrete was similar to the cumulative counting pattern of acoustic emission ringing, which both showed a three-stage form.