Journal Published Online: 20 September 2018
Volume 47, Issue 5

Experimental and Analytical Study on Fatigue Crack Propagation of Pervious Concrete

CODEN: JTEVAB

Abstract

Pervious concrete is a kind of porous material composed of a series of interconnected pores and solid skeletons. Although the research on the basic mechanical properties of pervious concrete has already been performed, the depth and breadth of research are not enough, especially regarding the fatigue fracture characteristics of pervious concrete. In this article, three-point flexural monotonic, cyclic, and fatigue tests of notched specimens are carried out. The mechanical characteristics of pervious concrete are studied on the basis of the mechanism of fracture. Both the effects of loading rates on the fracture mechanics and the effective crack length and the fracture toughness of pervious concrete are investigated. Additionally, on the basis of the crack propagation model proposed by Kolluru et al., the relationship between the crack propagation rate and the effective crack length of pervious concrete relative to flexural fatigue tests is obtained. In addition, the acoustic emission technique is used to monitor the cracking process of pervious concrete. The results indicate that the crack propagation law is similar to that of the acoustic hits. Both indeed show three stages.

Author Information

Shi, Dandan
College of Civil and Transportation Engineering, Hohai University, Gulou District, Nanjing, P.R. China Key Laboratory of Coastal Disaster and Defence, Ministry of Education, Hohai University, Gulou District, Nanjing, P.R. China
Chen, Xudong
College of Civil and Transportation Engineering, Hohai University, Gulou District, Nanjing, P.R. China Key Laboratory of Coastal Disaster and Defence, Ministry of Education, Hohai University, Gulou District, Nanjing, P.R. China
Shen, Nan
College of Civil and Transportation Engineering, Hohai University, Gulou District, Nanjing, P.R. China
Liu, Saisai
College of Civil and Transportation Engineering, Hohai University, Gulou District, Nanjing, P.R. China
Li, Shengtao
College of Civil and Transportation Engineering, Hohai University, Gulou District, Nanjing, P.R. China
Pages: 19
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JTE20170710
ISSN: 0090-3973
DOI: 10.1520/JTE20170710